MICRO SWITCH™ Premium
Large Basic Switches
BZ | BA | BM | BE | 6AS Series
Datasheet
2sensing.honeywell.com
What makes our switches better?
• Industry-leading temperature range for options up to 204 °C
[400 °F] and temperatures as low as -55 °C [-67 °F]
• Exclusive current carrying capability of up to 25 A
• International approvals: UL, CSA, ENEC, CE listings
• Options for circuitry, styles, connection types and a wide
selection of actuator styles
• Dependable performance -
tested up to 20 million mechanical cycles
• MICRO SWITCH™ legacy and expertise - over 75 years of
engineering excellence and experience
MICRO SWITCH™ Large Premium Basic Switches
Accurate, reliable, and repeatable, MICRO SWITCH™ BZ/BA/BM/BE Series features precise operating characteristics
and enhanced life. These premium, large snap-action switches offer precision operation and sensitive differential
travel.
Utilizing state-of-the-art manufacturing processes and quality controls, Honeywell has engineered premium, large
snap-action switches that meet various international agency requirements. Some models have military qualications.
MICRO SWITCH™ BZ/BA/BM/BE Series are often used for precision on/off applications, as well as end of limit,
presence/absence, and manual operator interface functions.
Their engineered design is suitable for various application needs. Congured options with BZ, BA, BM, and BE
switches provide a wide variety of operating and interface characteristics.
The MICRO SWITCH™ 6AS Series consists of two large premium BZ/BA/BM/BE snap-action switches ganged
together and actuated by a single actuator. Field adjustable operating point is an option for one or both switches.
QUALITY • RELIABLE • RUGGED • GLOBAL
Operating in extreme
temperatures is
all in a day’s work for
MICRO SWITCH™
large basics!
3
sensing.honeywell.com
Features
and Benefits
GLOBAL USE AND APPROVALS
Switches certified to UL, CSA, ENEC, and CE for global use
FLEXIBILITY OF PRODUCT CHARACTERISTICS
Honeywell’s large basic switches offer various operating force and differential travel
options to meet the actuator type. Designed with momentary or maintained
contact action, these switches may perform a variety of functions as well as
offering a choice of actuation, termination and operating characteristics for design
flexibility
VARIENTS FOR EXTREME CONDITIONS
With an IP64 sealing option to maintain switch enclosure sealing, many listings can
be used in dirty, harsh environments with their dustproof and splash resistant
seals. Many versions operate in extreme temperatures, up to 121 °C [250 °F],
and several with high temperature options for up to 204 °C [400 °F], as well as
temperatures as low as -55 °C [-67 °F]
EASY INSTALLATION REDUCES OVERALL COSTS
The switch’s enlongated mounting hole allows for easier, more accurate mounting
TIGHT HYSTERESIS/DIFFERENTIAL TRAVEL
Designed with a hysteresis as small as 0,008 mm [0.0003 in], the BZ/BA/BM/
BE switches may be used in applications where very tight and sensitive control is
required between the operate and release points
CURRENT CAPACITY FROM LESS THAN 1 A TO 25 A
With a broad current capacity, one switch package can control a wide range
of electrical loads. As requirements vary for applications, a standardized switch
package may help reduce costs and increase application flexibility. Gold contacts
available for controlling low energy/low power circuits
ENHANCED PERFORMANCE
Internal flat spring design delivers optimum performance and switch reliability
MILITARY APPROVALS
MIL-PRF-8805 switches available for military-specified applications
Listings certified for global use and mulitple applications
Standardize switching packages
4sensing.honeywell.com
BUILDING CONTROLS AND EQUIPMENT
Often used in a building’s boiler/heater controls, in HVAC systems to sense exhaust
pressure on high efficiency furnances, and in fire suppression systems to sound
alarm when sprinkler activation/waterflow is detected. May also be used in machine
tools to limit the maxiumum movement for pieces of equipment
DOORS AND LIFTS
May be used in elevators and lifts to sense if the car is in position before the door
opens and on door-latching mechanisms to indicate door closed and/or door
locked
SEMI-TRUCKS AND TRAILERS
Can be used to disengage the cruise control when the clutch pedal is depressed
and for diesel engine brake assist. For surface transportation equipment, can be
used as a seat switch
VALVES
Detects whether a valve is “open” or “closed”
TIMING DEVICES
Often used in commercial/industrial-grade timers to turn outputs “on” and/or “off” at
preset times
COMMUNICATION SYSTEMS
May be used as a door interlock on communication consoles or enclosures
FOOT SWITCHES
In commerical and industrial foot switch enclosures, may be used as the switching
element
COMMERCIAL AND INDUSTRIAL KITCHEN EQUIPMENT
May be used to indicate door closed and/or door locked for the self-cleaning feature
IRRIGATION EQUIPMENT
Often used for limiting maximum offset of irrigation towers
MEDICAL INSTRUMENTATION
In medical and dental equipment, often used in foot switches to control the dental
drill and the positioning of the chair
Potential Applications
5
sensing.honeywell.com
MICRO SWITCH™ Premium Large Basic Switches
Table 1. Specifications
Characteristic BZ
Series
WZ
Series
YZ
Series
BA
Series
WA
Series
YA
Series BM Series BE Series
Ampere rating 15 A 20 A 22 A 25 A
Circuitry SPDT SPNC SPNO SPDT SPNC SPNO SPDT SPDT
Operating force 1.0 oz to 28 oz
Termination quick connect, solder, screw
Actuator pin plunger, overtravel plunger, straight, roller, flexible leaf roller, flexible leaf
Voltage 125 Vac, 250 Vac, 125 Vdc, 250 Vdc
Agency approvals UL, CSA, ENEC, CE (varies by specific model)
Operating temperature -55 °C to 85 °C [-67 °F to 185 °F]
Contacts silver, silver cadmium oxide, gold alloy
Housing general purpose phenolic
Sealing Environment sealing option available (options for IP64 Sealing)
Dielectric strength 2000 V between each terminal and ground
Contact resistance 15 m Ohm max.(initial)
Insulation resistance 100,000 M Ohm min.
Vibration 1,5 mm peak-to-peak amplitude, frequency 10 Hz to 55 Hz, for two continuous hours
Expected mechanical life up to 20,000,000 cycles at 95% survival
Expected electrical
service life 100K operations at rated load
Rated frequency 50 Hz/60 Hz
6sensing.honeywell.com
BZ | BA | BM | BE | 6AS Series
ELECTRICAL DATA AND UL CODES
Table 2. UL Electrical Ratings
Code Circuitry Electrical data and UL codes
A SPDT
15 A, 125, 250 or 480 Vac;
1⁄8 HP, 125 Vac; 1⁄4 HP, 250 Vac;
1⁄2 A, 125 Vdc; 1⁄4 amp, 250 Vdc.
UL Code L96
B SPDT
5 A, 125, 250 or 480 Vac;
1⁄2 A, 125 Vdc; 1⁄4 amp, 250 Vdc.
UL Code L35
C SPDT 10 A, 125, 250 or 480 Vac;
UL Code L8
D SPDT
15 A, 125, 250 or 480 Vac;
1⁄8 HP, 125 Vac; 1⁄4 HP, 250 Vac.
UL Code L103
E SPDT
15 A, 125, 250 or 480 Vac;
1⁄4 HP, 125 Vac, 1⁄2 HP, 250 Vac;
1⁄2 A, 125 Vdc; 1⁄4 amp, 250 Vdc.
UL Code L67
F SPDT
22 A, 125, 250 or 480 Vac;
1⁄2 HP, 125 Vac, 1 HP, 250 Vac.
UL Code L161
G SPDT
20 A, 125, 250 or 480 Vac;
10 A, 125 Vac ‘‘L’’ (tungsten lamp load);
1 HP, 125 Vac; 2 HP, 250 Vac;
1⁄2 A, 125 Vdc; 1⁄4 A, 250 Vdc. UL Code L23
H SPDT
Motor control - 25 A, 125, 250 or 480 Vac;
1 HP, 125 Vac; 2 HP, 250 Vac;
Pilot duty—750 VA, 125, 250, or 277 Vac
ISPDT
10 A, 125, 250 or 480 Vac;
1⁄8 HP, 125 Vac; 1⁄4 HP, 250 Vac;
UL Code L95
P SPDT 1 A, 125 Vac
UL Code L22
T
Two-circuit,
double
break
Motor Control
15 A, 120, 240, 480 or 600 Vac;
1⁄2 HP, 120 Vac; 1 HP, 240 Vac;
0.8 amp, 115 Vdc; 0.4 amp, 230 Vdc.
W SPST
20 A, 125, 250 or 277 Vac;
3⁄4 HP, 125 Vac; 1⁄2 HP, 250 Vac
UL Code L178B
X SPDT
15 A, 125, 250 or 480 Vac;
2 A, 600 Vac; 1⁄8 HP, 125 Vac;
1⁄4 HP, 250 Vac; 1⁄2 amp, 125 Vdc;
1⁄4 amp, 250 Vdc. UL Code L74
GENERAL SWITCH IDENTIFICATION
The first letter in the catalog listing designates:
B = Single pole, double throw
W = Single pole, normally closed
Y = Single pole, normally open
The second letter in the catalog listing designates:
Z = Standard, 15 A version
M = 22 A version
A = Standard, 20 A version
E = 25 A version
MOUNTING DIMENSIONS
Mounting dimensions are included in this datasheet. They are
shown in English and metric equivalents. These dimensions are
for reference only. Engineering drawings may be accessed via the
Honeywell web site: sensing.honeywell.com.
Mounting holes for Types BZ, BM,BA, BE, and 6AS switches accept
pins or screws of 3,53 mm [0.139 in] diameter.
RECOMMENDED TORQUE
Mounting screws ........................0,39 Nm [3 in-lb]*
Terminal screws. ......................... 0,45 Nm [4 in-lb]
Panel mount bushing .... 0,45 Nm to 0,68 Nm [4 in-lb to 6 in-lb]
*Note: Tightening mounting screws above 0,3 Nm [3 in-lb] changes
operating characteristics and increases the possibility of cracking
the case.
UL/CSA
Honeywell basic switches are Component Recognized by
Underwriters’ Laboratories, Inc. and certified by Canadian
Standards Association. The BA, BZ, and BM line is covered
as Special Use Switches to UL Standard1054; the BE line is
covered as an Industrial Product to UL Standard 508. Agency File
References are:
• BA UL File E12252, issued 12-09-88
• BM UL File E12252, issued 12-08-88
• BZ UL File E12252, issued 6-29-89
• BE-1,2,5 UL File E22779, Vol. 4, Sec. 1
• BE-R UL File E22779, Vol. 4, Sec. 2
7
sensing.honeywell.com
MICRO SWITCH™ Premium Large Basic Switches
ORDER GUIDE BY ASCENDING ELECTRICAL CAPABILITY
Catalog
Listing
Recommended
For
Electrical
Data and
UL Codes
O.F.
N [oz]
R.F.
min.
N [ oz]
P. T.
max.
mm
[in]
O.T.
min.
mm
[in]
D.T.
mm [in]
O.P.***
mm [in]
BZ/BA type
BZ/BA Type
BZ-2R72-A2** Applications requiring
gold alloy contacts
1 A
P
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
0,13
[0.005]
0,01 to 0,05
[0.0004 to 0.0020]
15,88
[0.625]
BZ-2R725551-A2
Gold alloy contacts
Dustproof and splash
resistant seal
1 A
P
2,22 to 4,17
[8 to 15]
1,11
[4] –0,13
[0.005]
0,01 to 0,06
[0.0004 to 0.0025]
15,88
[0.625]
BZ-2R244-A2
Operating in temp. to
204 °C [400 °F] for
100 hours
5 A
B
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
0,13
[0.005]
0,01 to 0,05
[0.0004 to 0.0020]
15,88
[0.625]
BZ-R21-A2 Lower force 10 A
C
1,11
[4]
0,7
[2.5]
0,30
[0.012]
0,13
[0.005]
0,005 to 0,013
[0.0002 to 0.0005]
15,88
[0.625]
BZ-2R-A2 Most applications
SPDT
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
0,13
[0.005]
0,01 to 0,05
[0.0004 to 0.0020]
15,88
[0.625]
WZ-2R-A2 SPST (normally
closed)
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
0,13
[0.005]
0,01 to 0,05
[0.0004 to 0.0020]
15,88
[0.625]
YZ-2R-A2 SPST (normally open) 15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
0,13
[0.005]
0,01 to 0,05
[0.0004 to 0.0020]
15,88
[0.625]
Sealed type
Sealed type
BZ-R-A2 Less differential travel 15 A
D
1,95 to 2.5
[7 to 9]
1,11
[4]
0,30
[0.012]
0,13
[0.005]
0,005 to 0,008
[0.0002 to 0.0003]
15,88
[0.625]
BZ-R19-A2 Best repeatability 15 A
D
1,95 to 3,34
[7 to 12]
1,11
[4]
0,30
[0.012]
0,13
to 0,2
[0.005
to
0.008]
0,005 to 0,02
[0.0002 to 0.0008]
16,26
[0.640]
BZ-2R24-A2 Operating in temp. to
121 °C [250 °F]
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
0,13
[0.005]
0,01 to 0,05
[0.0004 to 0.0020]
15,88
[0.625]
BZ-2RT04
(M8805/1-004)
MIL-PRF-8805 appli-
cation requirements
15 A
A
2,5 to 3,61
[9 to 13]
1,67
[6]
0,38
[0.015]
0,13
[0.005]
0,01 to 0,05
[0.0004 to 0.0020]
15,88
[0.625]
BZ-2R05-A2 Stability under
varying humidity
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
0,13
[0.005]
0,01 to 0,05
[0.0004 to 0.0020]
15,88
[0.625]
BZ-2R5551-A2 Dustproof and splash
resistant seal
15 A
A
2,5 to 4,17
[9 to 15]
1,11
[4] –0,13
[0.005]
0,01 to 0,06
[0.0004 to 0.0025]
15,88
[0.625]
BZ-2R55-A2-S
Sealed construction.
Stainless steel internal
snapspring
15 A
A
2,5 to 4,17
[9 to 15]
1,11
[4] –0,13
[0.005]
0,01 to 0,06
[0.0004 to 0.0025]
15,88
[0.625]
BA/BE type
BA-2R-A2 Up to 20 ampere load 20 A
G
3,89 to 6,12
[14 to 22]
2,78
[10]
1,27
[0.050]
0,25
[0.10]
0,05 to 0,19
[0.0020 to 0.0075]
16,26
[0.640]
BA-2R24-A2 Operating in temp. to
121 °C [250 °F]
20 A
G
3,89 to 6,12
[14 to 22]
2,78
[10]
1,27
[0.050]
0,25
[0.10]
0,05 to 0,19
[0.0020 to 0.0075]
16,26
[0.640]
BM-1R-A2 Up to 22 ampere load 22 A
F
1,95 to 2,78
[7 to 10]
1,11
[4]
0,38
[0.015]
0,13
[0.005]
0,013 to 0,025
[0.0005 to 0.0010]
15,88
[0.625]
BE-2R-A4 Up to 25 ampere load,
#8 screw terminals
25 A
H
3,89 to 6,12
[14 to 22]
2,78
[10]
1,27
[0.050]
0,25
[0.10]
0,05 to 0,19
[0.0020 to 0.0075]
16,26
[0.640]
Manual Reset BZ-RX Manual reset, solder
terminals
15 A
E
1,95 to 2,5
[7 to 9]
0,56 to 2,78*
[2 to 10]
–
0,30
[0.012]
–
0,13
[0.005]
0,38*
0.015]
–15,88
[0.625]
WA-1RX-A4
Manual reset
SPST-NC, #8 screw
terminals
20 A
W
5,56 [20]
6,95 [25]* – –
0,25
[0.010]
–
0,20
[0.008]
–
16,26 [0.64]
27,9*[1.10]
* Reset characteristics
** -A2 is supplied with #6 terminal screws
*** Except where stated, ±0,38 mm [±0.015 in]
O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
8sensing.honeywell.com
BZ | BA | BM | BE | 6AS Series O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
OVERTRAVEL PLUNGER ORDER GUIDE
Catalog Listing Recommended
For
Electrical
Data and
UL Codes
O.F.
N [oz]
R.F.
min.
N [ oz]
P. T.
max.
mm
[in]
O.T.
min.
mm
[in]
D.T.
mm [in]
O.P.*
mm [in]
BZ-2RD72-A2 Applications requiring
gold alloy contacts
1 A
P
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
1,52
[0.060]
0,01 to 0,05
[0.0004 to 0.0020]
21,21
[0.835]
BZ-2RD-A2
Added overtravel. For
manual operation and
slow 20° (max) cam rise
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
1,52
[0.060]
0,01 to 0,05
[0.0004 to 0.0020]
21,21
[0.835]
BZ-2RD24-A2 Operating in temperature
to 121 °C [250 °F]
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
1,52
[0.060]
0,01 to 0,05
[0.0004 to 0.0020]
21,21
[0.835]
BM-1RD-A2 Up to 22 ampere load 22 A
F
1,95 to 2,78
[7 to 10]
1,11
[4]
0,38
[0.015]
1,52
[0.060]
0,013 to 0,025
[0.0005 to 0.0010]
21,21
[0.835]
BZ-2RDS725551-A2
Applications requiring
gold alloy contacts plus
dustproof and splash
resistant seal
1 A
P
3,61 to 5,28
[13 to 19]
1,11
[4] –1,52
[0.060]
0,01 to 0,063
[0.0004 to 0.0025]
28,20
[1.110]
BZ-2RDS5551-A2 Dustproof and splash
resistant seal
15 A
A
3,61 to 5,28
[13 to 19]
1,11
[4] –1,52
[0.060]
0,01 to 0,063
[0.0004 to 0.0025]
28,20
[1.110]
BA-2RB-A2 Up to 20 ampere load 20 A
G
3,89 to 6,12
[14 to 22]
2,78
[10]
1,27
[0.050]
2,39
[0.094]
0,05 to 0,019
[0.0020 to 0.0075]
26,20
[1.03]
BE-2RB-A4 Up to 25 ampere load,
#8 screw terminals
25 A
H
3,89 to 6,12
[14 to 22]
2,78
[10]
1,27
[0.050]
2,39
[0.094]
0,05 to 0,019
[0.0020 to 0.0075]
26,20
[1.03]
BZ-2RS72-A2 Applications requiring
gold alloy contacts
1 A
P
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
1,52
[0.060]
0,01 to 0,05
[0.0004 to 0.0020]
28,20
[1.110]
BZ-2RS-A2
Added overtravel. For
in-line operation and
with JR aux. actuators
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
1,52
[0.060]
0,01 to 0,063
[0.0004 to 0.0025]
28,20
[1.110]
BZ-2RS24-A2 Operating in temperature
to 121 °C [250 °F]
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
1,52
[0.060]
0,01 to 0,05
[0.0004 to 0.0020]
28,20
[1.110]
BZ-2RST04
(M8805/1-012)
MIL-PRF-8805 applica-
tion
requirements
15 A
A
2,5 to 3,61
[9 to 13]
1,67
[6]
0,38
[0.015]
1,52
[0.060]
0,01 to 0,05
[0.0004 to 0.0020]
28,20
[1.110]
BZ-RSX Manual reset
solder terminals
15 A
E
1,95 to 2,64
[7 to 9] –0,30
[0.012]
0,65
[0.025] –2,79
[1.11]
BM-1RS-A2 Up to 22 ampere load 22 A
F
1,95 to 2,78
[7 to 10]
1,11
[4]
0,38
[0.015]
1,52
[0.060]
0,013 to 0,025
[0.0005 to 0.0010]
28,20
[1.110]
BZ-2RS7225551-A2
Applications requiring gold
alloy contacts plus
dustproof and splash
resistant seal
1 A
P
2,5 to 4,17
[9 to 15]
1,11
[4] –1,52
[0.060]
0,01 to 0,063
[0.0004 to 0.0025]
28,20
[1.110]
BZ-2RS5551-A2 Dustproof and splash
resistant seal
15 A
A
2,5 to 4,17
[9 to 15]
1,11
[4] –1,52
[0.060]
0,01 to 0,063
[0.0004 to 0.0025]
28,20
[1.110]
* ±51 mm [±0.020 in]
9
sensing.honeywell.com
MICRO SWITCH™ Premium Large Basic Switches
OVERTRAVEL PLUNGER ORDER GUIDE
Catalog
Listing
Recommended
For
Electrical
Data and
UL Codes
O.F.
N [oz]
R.F.
min.
N [ oz]
P. T.
max.
mm
[in]
O.T.
min.
mm
[in]
D.T.
mm [in]
O.P.**
mm [in]
BZ-2RQ-A2
Added overtravel. For
manual in-line operation
and for slow 30° (max)
rise cams
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
5,56
[0.219]
0,01 to 0,05
[0.0004 to 0.0020]
38,10 ±0,51
[1.50 ±0.02]
BZ-2RQ24-A2 Operating in temperature
to 121 °C [250 °F]
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
5,56
[0.219]
0,01 to 0,05
[0.0004 to 0.0020]
38,10 ±0,51
[1.50 ±0.02]
BZ-2RQ172-A2 Applications requiring
gold alloy contacts
1 A
P
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
5,56
[0.219]
0,01 to 0,05
[0.0004 to 0.0020]
21,82
[0.859]
BZ-2RQ1-A2 BZ-2RQ-A2 type applica-
tions with panel mount
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
5,56
[0.219]
0,01 to 0,05
[0.0004 to 0.0020]
21,82
[0.859]
BZ-2RQ1T04
(M8805/1-020)
MIL-PRF-8805 application
requirements
15 A
A
2,5 to 3,61
[9 to 13]
1,67
[6]
0,38
[0.015]
5,56
[0.219]
0,01 to 0,05
[0.0004 to 0.0020]
21,82
[0.859]
BZ-2RQ124-A2 Operating in temperature
to 121 °C [250 °F]
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
5,56
[0.219]
0,01 to 0,05
[0.0004 to 0.0020]
21,82
[0.859]
BZ-2RN702
Furnished with
unassembled seal
boot.
15 A
X
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
3,18
[0.125]
0,01 to 0,05
[0.0004 to 0.0020]
48,4 ±0,50
1.906 [±0.02]
BZ-RQ1X Manual reset.
Solder terminals
15 A
E
1,67 to 2,64
[6 to 9.5] –0,30
[0.012]
5,56
[0.219] –
23,42 ±1,14
[0.922
±0.045]
7,14*
[0.281*]
BA-2RQ1-A2 Up to 20 ampere load 20 A
G
3,89 to 6,12
[14 to 22]
2,78
[10]
1,27
[0.050]
5,56
[0.219]
0,05 to 0,19
[0.0020 to 0.0075]
21,82
[0.859]
BM-1RQ1-A2 Up to 22 ampere load 22 A
F
1,95 to 2,78
[7 to 10]
1,11
[4]
0,38
[0.015]
5,56
[0.219]
0,013 to 0,025
[0.0005 to 0.0010]
21,82
[0.859]
BZ-2RQ1872-A2 Applications requiring gold
alloy contacts
1 A
P
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
3,56
[0.140]
0,01 to 0,05
[0.0004 to 0.0020]
33,32 ±1,14
[1.31 ±0.045]
BZ-2RQ18-A2
Added overtravel. Roller
plunger for rapid cam (30°
max) rise and slide
operation. Panel mount
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
3,56
[0.140]
0,01 to 0,05
[0.0004 to 0.0020]
33,32 ±1,14
[1.31 ±0.045]
BZ-2RQ1824-A2 Operating in temperature
to 121 °C [250 °F]
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
3,56
[0.140]
0,01 to 0,05
[0.0004 to 0.0020]
33,32 ±1,14
[1.31 ±0.045]
BZ-2AQ18T1 Double-break circuitry 15 A
T
3,89 to 6,68
[14 to 24]
1,11
[4]
0,69
[0.025]
3,58
[0.141]
0,03 to 0,10
[0.001 to 0.004]
33,35 ±1,19
[1.31 ±0.047]
BM-1RQ18-A2 Up to 22 ampere load 22 A
F
1,95 to 2,78
[7 to 10]
1,11
[4]
0,38
[0.015]
3,56
[0.140]
0,013 to 0,025
[0.0005 to 0.0010]
33,32 ±1,14
[1.31 ±0.045]
BZ-2RQ181-A2
Applications requiring
roller plunger 90° to major
axis of switch
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
[0.015]
3,56
[0.140]
0,01 to 0,05
[0.0004 to 0.0020]
33,32 ±1,14
[1.31 ±0.045]
* Reset characteristics
** Except where stated, ±0,76 mm [±0.030 in]
O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
10 sensing.honeywell.com
BZ | BA | BM | BE | 6AS Series O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
STRAIGHT LEVER ORDER GUIDE
Catalog
Listing
Recommended
For
Electrical
Data and
UL Codes
O.F.
N [oz]
R.F.
min.
N [ oz]
P. T.
max.
mm
[in]
O.T.
min.
mm
[in]
D.T.
mm [in]
O.P.**
mm [in]
BZ-2RW8072-A2 Applications requiring gold
alloy contacts
1 A
P
0,7
[2.5]
0,14
[0.5] –5,56
[0.219]
0,18 to 1,27
[0.007 to 0.050]
19,1
[0.750]
BZ-
2RW80722555105-
A2
Stability under varying hu-
midity. Gold alloy contacts
with seal
1 A
P
0,7
[2.5]
0,14
[0.5] –5,56
[0.219]
0,18 to 1,27
[0.007 to 0.050]
19,1
[0.750]
BZ-2RW8244-A2
Operating in temp.
to 204 °C [400 °F]
for 100 hours
5 A
B
0,7
[2.5]
0,14
[0.5] –5,56
[0.219]
0,18 to 1,27
[0.007 to 0.050]
19,1
[0.750]
BZ-RW8435-A2
Lowest operating
force (without external
return spring)
10 A
I
0,07
[0.25[ –6,76
[0.266]
5,56
[0.219]
0,08 to 0,38
[0.003 to 0.015]
19,1
[0.750]
BZ-2RW876T 1.25-inch lever 15 A
A
1,67
[6]
0,42
[1.5] –0,42
[0.141]
0,10 to 0,63
[0.004 to 0.025]
19,1
[0.750]
BZ-2RW80-A2 2.5-inch lever 15 A
A
0,7
[2.5]
0,14
[0.5] –5,56
[0.219]
0,18 to 1,27
[0.007 to 0.050]
19,1
[0.750]
BZ-2RW84-A2 Lower force (without
external return spring)
15 A
A
0,28
[1]
0,03
[0.125]
8,33
[0.328]
5,56
[0.219]
0,18 to 1,27
[0.007 to 0.050]
19,1
[0.750]
BZ-2RW805551-
A2
Dustproof and
splash resistant seal
15 A
A
0,7
[2.5]
0,14
[0.5] –5,56
[0.219]
0,18 to 1,27
[0.007 to 0.050]
19,1
[0.750]
BZ-2RWT04
(M8805/1-044)
MIL-PRF-8805
application requirements
15 A
A
0,28 to 0,90
[1 to 3.25]
0,21
[0.75]
7,52
[0.296]
4,37
[0.172]
2,36
[0.093]
19,1
[0.750]
BZ-2RW824-A2 Operating in temperature
to 121 °C [250 °F]
15 A
A
0,7
[2.5]
0,14
[0.5] –5,56
[0.219]
0,18 to 1,27
[0.007 to 0.050]
19,1
[0.750]
BZ-RW80X Manual reset, solder
terminals
15 A
E
0,63
[2.25] – –
5,56
[0.219]
0,38*
[0.015]
–
19,05
[0.750]
7,14*
[0.281]
BZ-2RW863-A2 6-inch lever 15 A
A
0,28
[1] – – 12,7
[0.50]
0,46 to 3,68
[0.018 to 0.145]
19,1 ±1,52
[0.75 ±0.06]
BA-2RV-A2 Up to 20 ampere load 20 A
G
0,7
[2.5]
0,14
[0.5]
15,88
[0.625]
1,98
[0.078]
2,77 max.
[0.109] max.
19,1
[0.750]
BM-1RW84-A2 Up to 22 ampere load 22 A
F
0,28
[1]
0,03
[0.125]
7,54
[0.297]
5,56
[0.219]
0,13 to 0,84
[0.005 to 0.033]
19,1
[0.750]
BE-2RV-A4 Up to 25 ampere load
#8 screw terminals
25 A
H
0,7
[2.5]
0,14
[0.5]
15,88
[0.625]
1,98
[0.078]
2,77 max.
[0.109] max.
19,1
[0.750]
BZ-2RW899-A2
Adjustable operating point
17 mm to 22 mm [0.67 in
to 0.88 in]
15 A
A
0,7
[2.5]
0,14
[0.5] –3,54***
[0.125]
0,18 to 1,27
[0.007 to 0.050]
17,02 to
22,35
[0.670 to
0.880]
BZ-2RM-A2
Reverse acting actuator
(switch plunger depressed
in free position)
15 A
A
1,67
[6]
0,28
[1]
5,56
[0.219]
5,56
[0.219]
0,10 to 0,89
[0.004 to 0.035]
19,1
[0.750]
* Reset characteristics
** except where stated ±0,76 mm [±0.030 in]
*** from 17 mm [0.670 in] O.P.
11
sensing.honeywell.com
MICRO SWITCH™ Premium Large Basic Switches O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
SIMULATED ROLLER AND ROLLER LEVER ORDER GUIDE
Catalog
Listing
Recommended
For
Electrical
Data and
UL Codes
O.F.
N [oz]
R.F.
min.
N [ oz]
P. T.
max.
mm
[in]
O.T.
min.
mm
[in]
D.T.
mm [in]
O.P.**
mm [in]
BZ-2RW80147-
A2
1.05 inch (26,7 mm)
(simulated roller)
lever applications
15 A
A
1,67
[6]
0,42
[1.5] –2,39
[0.094]
0,08 to 0,51
[0.003 to 0.020]
30,17
[1.188]
BZ-2RW80196-A2
1.90 inch (48,3 mm)
(simulated roller)
lever applications
15 A
A
0,97
[3.5]
0,21
[0.75] –3,96
[0.156]
0,10 to 1,0
[0.004 to 0.040]
30,17 ±0,76
[1.188
±0.03]
BZ-2RW82272-
A2
Applications
requiring gold alloy
contacts
1 A
P
1,67
[6]
0,42
[1.5] –2,39
[0.094]
0,08 to 0,51
[0.003 to 0.020]
30,17
[1.188]
BZ-
2RW822725551-
A2
Apps requiring gold alloy
contacts plus dustproof
and splash resistant seal
1 A
P
1,67
[6]
0,42
[1.5] –2,39
[0.094]
0,08 to 0,51
[0.003 to 0.020]
30,17
[1.188]
BZ-2RW822-A2 26,7 mm [1.05 in] mm)
roller lever
15 A
A
1,67
[6]
0,42
[1.5] –2,39
[0.094]
0,08 to 0,51
[0.003 to 0.020]
30,17
[1.188]
BZ-2RW8222-A2 Roller turned 90° 15 A
A
0,7 to 1,81
[2.5 to 6.5]
0,35
[1.25] –
3,58
[0.141]
max.
0,08 to 0,51
[0.003 to 0.020]
30,75
[1.25]
BZ-2RW82224-
A2
Operating in
temperature to
121 °C [250 °F]
15 A
A
1,67
[6]
0,42
[1.5] –2,39
[0.094]
0,08 to 0,51
[0.003 to 0.020]
30,17
[1.188]
BZ-
2RW8225551-A2
Dustproof and
splash resistant seal
15 A
A
1,67
[6]
0,42
[1.5] –2,39
[0.094]
0,08 to 0,51
[0.003 to 0.020]
30,17
[1.188]
BZ-
2RW82255-A2-S
Best service for
sealed construction.
Stainless steel
internal snap spring.
15 A
A
1,67
[6]
0,42
[1.5] –2,39
[0.094]
0,08 to 0,51
[0.003 to 0.020]
30,17
[1.188]
BA-2RV22-A2 Up to 20 ampere load 20
G
1,67
[6]
0,42
[1.5]
6,35
[0.250]
0,76
[0.030]
1,14
[0.045] max.
29,77
[1.172]
BM-1RW822-A2 Up to 22 ampere load 22
F
1,67
[6]
0,42
[1.5] –2,39
[0.094]
0,025 to 0,33
[0.001 to 0.013]
30,17
[1.188]
BE-2RV22-A4 Up to 25 ampere load,
#8 screw terminals
25
H
1,67
[6]
0,42
[1.5]
6,35
[0.250]
0,76
[0.030]
1,14
[0.045] max.
29,77
[1.172]
BZ-2RW82299-
A2
Adjustable operating
point. Roller lever
1.05 inch (26,7 mm)
15 A
A
1,67
[6]
0,42
[1.5] –1,02
[0.040]
0,08 to 0,51
[0.003 to 0.020]
29,77 to
30,56
[1.172 to
1.203]
BZ-2RW8299-A2
Adjustable operating
point. Roller lever
1.90 inch (48,3 mm)
15 A
A
0,97
[3.5]
0,21
[0.75] –2,16
[0.085]
0,10 to 1,0
[0.004 to 0.040]
29,2 to 31,5
[1.150 to
1.24]
** except where stated ±0,38 mm [±0.015 in]
12 sensing.honeywell.com
BZ | BA | BM | BE | 6AS Series O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
ROLLER LEVER ORDER GUIDE
Catalog
Listing
Recommended
For
Electrical
Data and
UL Codes
O.F.
N [oz]
R.F.
min.
N [ oz]
P. T.
max.
mm
[in]
O.T.
min.
mm
[in]
D.T.
mm [in]
O.P.**
mm [in]
BZ-
2RW82725551-
A2
Applications requiring
gold alloy contacts,
plus dustproof, and
splash resistant seal
1 A
P
0,97
[3.5]
0,21
[0.75] –3,96
[0.156]
0,10 to 1,0
[0.004 to 0.040]
30,17 ±0,76
[1.188
±0.030]
BZ-2RW82-A2
1.90 inch (48,3 mm)
(steel roller) lever
applications
15 A
A
0,97
[3.5]
0,21
[0.75] –3,96
[0.156]
0,10 to 1,0
[0.004 to 0.040]
30,17 ±0,76
[1.188
±0.030]
BZ-2RW825551-
A2
Dustproof and splash
resistant seal
15 A
A
0,97
[3.5]
0,21
[0.75] –3,96
[0.156]
0,10 to 1,0
[0.004 to 0.040]
30,17 ±0,76
[1.188
±0.030]
BZ-2RW8224-A2 Operating in temperature
to 121 °C [250 °F]
15 A
A
0,97
[3.5]
0,21
[0.75] –3,96
[0.156]
0,10 to 1,0
[0.004 to 0.040]
30,17 ±0,76
[1.188
±0.030]
BA-2RV2-A2 Up to 20 ampere load 20 A
G
0,97
[3.5]
0,14
[0.5]
11,89
[0.468]
1,52
[0.060]
2,16
[0.085]
30,17 ±0,76
[1.188
±0.030]
BM-1RW82-A2 Up to 22 ampere load 22 A
F
0,97
[3.5]
0,21
[0.75] –3,96
[0.156]
0,08 to 0,56
[0.003 to 0.022]
30,17 ±0,76
[1.188
±0.030]
BE-2RV2-A4 Up to 25 ampere load,
#8 screw terminals
25 A
H
0,97
[3.5]
0,14
[0.5]
11,89
[0.468]
1,52
[0.060]
2,16
[0.085]
30,17 ±0,76
[1.188
±0.030]
BZ-RW922-A2 Best repeatability and
O.P. stability
10 A
I
3,34
[12]
1,11
[4]
0,35
[0.015]
2,54
[0.100]
0,013 to 0,025
[0.0005 to 0.0010]
31,37
[1.235]
BZ-2RW826-A2
One-way roller 9,4
mm x 3,8 mm [0.37 in
dia. x 0.15 in] wide roller
15 A
A
1,67
[6]
0,42
[1.5] –2,39
[0.094]
0,08 to 0,51
[0.003 to 0.020]
41,34
[1.625]
BZ-2RW825-A2
One-way roller 4,83
mm x 4,83 mm [0.19 in
dia. x 0.19 in] wide roller
15 A
A
2,22
[8]
0,42
[1.5] –1,52
[0.060]
0,38
[0.015]
28,96
[1.14]
NOTE: For adjustable operate point and simulated roller lever switches, refer to previous page.
** except where stated ±0,38 mm [±0.015 in]
13
sensing.honeywell.com
MICRO SWITCH™ Premium Large Basic Switches
FLEXIBLE LEAF AND FLEXIBLE ROLLER LEAF ORDER GUIDE
Catalog
Listing
Recommended
For
Electrical
Data and
UL Codes
O.F.
N [oz]
R.F.
min.
N [ oz]
P. T.
max.
mm
[in]
O.T.
min.
mm
[in]
D.T.
mm [in]
max.
O.P.**
mm [in]
BZ-2RL-A2 Force and stability of the
flexible leaf actuator
15 A
A
1,39
[5]
0,14
[0.5] –1,52
[0.060]
1,27
[0.050]
17,48
[0.688]
BZ-2RL5551-A2 Dustproof and splash
resistant seal
15 A
A
1,95
[7]
0,14
[0.5] –1,52
[0.060]
1,27
[0.050]
17,48
[0.688]
BZ-2RLT04
(M8805/1-001)
MIL-PRF-8805 application
requirements
15 A
A
1,39
[5]
0,14
[0.5] –1,52
[0.060]
1,27
[0.050]
17,48
[0.688]
BZ-2RL24-A2 Operating in temperature
to 121 °C [250 °F]
15 A
A
1,39
[5]
0,14
[0.5] –1,52
[0.060]
1,27
[0.050]
17,48
[0.688]
BZ-RLX Manual reset.
Solder terminals
15 A
E
0,83
[3] – –
1,57
[0.062]
0,38*
[0.015]
–
17,48
[0.688]
7,14*
[0.281]
BA-2RL-A2 Up to 20 ampere load 20 A
G
2,5
[9]
0,28
[1] –1,57
[0.062]
1,57
[0.062]
17,48
[0.688]
BE-2RL-A4 Up to 25 ampere load,
#8 screw terminals
25 A
H
2,5
[9]
0,28
[1] –1,57
[0.062]
1,57
[0.062]
17,48
[0.688]
BZ-RL24-A2 Operating in temp. to 121
°C [250 °F] for 100 hours
5 A
B
1,39
[5]
0,14
[0.5] –1,52
[0.060]
1,27
[0.050]
28,6
[1.125]
BZ-2RL2-A2 Force and stability of the
flexible leaf with roller
15 A
A
1,39
[5]
0,14
[0.5] –1,52
[0.060]
1,27
[0.050]
28,6
[1.125]
BZ-2RL25551-
A2
Dustproof and splash
resistant seal
15 A
A
1,95
[7]
0,14
[0.5] –1,52
[0.060]
1,27
[0.050]
28,6
[1.125]
BZ-2RL2T04
(M8805/1-036)
MIL-PRF-8805 application
requirements
15 A
A
1,04 to 1,39
[3.75 to 5]
0,14
[0.5] –1,52
[0.060]
1,27
[0.050]
28,6
[1.125]
BA-2RL2-A2 Up to 20 ampere load 20 A
G
2,5
[9]
0,28
[1] –1,52
[0.060]
1,65
[0.065]
28,6
[1.125]
BE-2RL2-A4 Up to 25 ampere load,
#8 screw terminals
25 A
H
2,5
[9]
0,28
[1] –1,52
[0.060]
1,65
[0.065]
28,6
[1.125]
NOTE: For adjustable operate point and simulated roller lever switches, refer to previous page.
** except where stated ±0,76 mm [±0.030 in]
O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
14 sensing.honeywell.com
BZ | BA | BM | BE | 6AS Series
STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
BZ/BM Series: Pin plunger BA/BE Series: Pin plunger
2,3 mm [0.09 in] dia
15,0 mm
[0.59 in]
15,7 mm
[0.62 in]
O.P.
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
9,1 mm
[0.36 in]
11,9 mm
[0.47 in]
49,3 mm
[1.94 in]
25,4 mm
[1.00 in]
4,3 mm
[0.17 in]
dia.
0,2 mm
[0.01 in]
P. T. 23,37 mm
[0.92 in]
SST plunger SST plunger
2,3 mm [0.09 in] dia
15,0 mm
[0.59 in]
16,2 mm
[0.64 in]
O.P.
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
9,1 mm
[0.36 in]
11,9 mm
[0.47 in]
49,3 mm
[1.94 in]
25,4 mm
[1.00 in]
4,3 mm
[0.17 in]
dia.
1,27 mm
[0.05 in]
P. T. 19,05 mm [0.75 in]
5,3 mm
[0.21 in]
BZ/BM Series: Overtravel plunger BA/BE Series: Overtravel plunger
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
9,1 mm
[0.36 in]
14,5 mm
[0.57 in]
0,25 mm
[0.01 in]
max.
P. T. 13,5 mm
[0.53 in]
dia.
7,11 mm [0.28 in] dia.
21,1 mm
[0.83 in]
O.P.
4,3 mm
[0.17 in]
dia. 49,3 mm
[1.94 in]
25,4 mm
[1.00 in]
11,9 mm
[0.47 in]
4,06 mm
[0.16 in]
Plated steel plunger
23,37 mm
[0.92 in]
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
9,1 mm
[0.36 in]
14,9 mm
[0.59 in]
12,7 mm
[0.05 in]
max.
P. T.
7,1 mm
[0.28 in]
dia.
15,0 mm [0.59 in] dia.
26,1 mm
[1.03 in]
O.P.
4,3 mm
[0.17 in]
dia.
49,3 mm [1.94 in]
25,4 mm
[1.00 in]
11,9 mm
[0.47 in]
7,62 mm
[0.30 in]
SST plunger
19,05 mm
[0.75 in]
5,3 mm
[0.21 in]
BZ/BM Series: Bushing-mount overtravel plunger BA/BE Series: Bushing-mount overtravel plunger
9,1 mm
[0.36 in]
21,8 mm
[0.86 in]
O.P.
14,5 mm
[0.57 in]
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
8,1 mm
[0.32 in]
dia.
4,3 mm
[0.17 in]
dia. 49,3 mm
[1.94 in]
25,4 mm
[1.00 in]
11,9 mm
[0.47 in]
5,3 mm
[0.21 in]
16,0 mm
[0.63 in]
Plated steel plunger
0,2 mm
[0.01 in]
max.
P. T.
13,2 mm
[0.52 in]
23,37 mm [0.92 in]
9,1 mm
[0.36 in]
21,8 mm
[0.86 in]
O.P.
14,5 mm
[0.57 in]
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
8,1 mm
[0.32 in]
dia.
4,3 mm
[0.17 in]
dia. 49,3 mm
[1.94 in]
25,4 mm
[1.00 in]
11,9 mm
[0.47 in]
5,3 mm
[0.21 in]
16,0 mm
[0.63 in]
Plated steel plunger
1,27 mm
[0.05 in]
max.
P. T.
13,2 mm
[0.52 in]
19,05 mm [0.75 in]
15
sensing.honeywell.com
MICRO SWITCH™ Premium Large Basic Switches
STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
BZ/BM Series: Flexible leaf actuator BA/BE Series: Flexible leaf actuator
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
9,1 mm
[0.36 in]
14,7 mm
[0.58 in]
49,5 mm
[1.95 in]
17,5 mm
[0.69 in]
O.P.
4,3 mm
[0.17 in]
dia. 49,3 mm
[1.94 in]
25,4 mm
[1.00 in]
11,9 mm
[0.47 in]
5,3 mm
[0.21 in]
20,5 mm
[0.81 in]
F. P.
SST lever
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
9,1 mm
[0.36 in]
14,7 mm
[0.58 in]
45,2 mm
[1.78 in]
17,5 mm
[0.69 in]
O.P.
4,3 mm
[0.17 in]
dia. 49,3 mm
[1.94 in]
25,4 mm
[1.00 in]
11,9 mm
[0.47 in]
5,3 mm
[0.21 in]
25,4 mm
[1.00 in]
F. P.
SST lever
BZ/BM Series: Straight lever with external return spring BA/BE Series: Straight lever
9,1 mm
[0.36 in]
19,1
0.75
O.P.
27,2 mm
[1.07 in]
F. P.
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
9,6 mm
[0.38 in]
63,5 mm
[2.50 in]
R
16,8 mm
[0.66 in]
4,3 mm
[0.17 in]
dia. 49,3 mm
[1.94 in]
25,4 mm
[1.00 in]
11,9 mm
[0.47 in]
5,3 mm
[0.21 in]
20,0 mm
[0.79 in]
F. P.
SST lever
9,1 mm
[0.36 in]
19,0 mm
[0.75 in]
O.P.
34,8 mm
[1.37 in]
F. P.
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
9,6 mm
[0.38 in]
63,5 mm
[2.50 in]
R
16,5 mm
[0.69 in]
4,3 mm
[0.17 in]
dia. 49,3 mm
[1.94 in]
25,4 mm
[1.00 in]
11,9 mm
[0.47 in]
5,3 mm
[0.21 in]
20,8 mm
[0.82 in]
SST lever
BZ/BM Series: Roller lever with external return spring Pin plunger with manual reset
9,1 mm
[0.36 in]
29,9 mm
[1.18 in]
O.P.
F. P.
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
9,7 mm
[0.38 in]
[1.02 in]
4,3 mm
[0.17 in]
dia. 49,3 mm
25,4 mm
[1.00 in]
11,9 mm
[0.47 in]
5,3 mm
[0.21 in]
[0.79 in]
SST roller
26,7 mm
[1.05 in]
R
2,3 mm [0.09 in] dia
14,9 mm
[0.59 in]
27,9 mm
[1.10 in]
R.O.P.
3,6 mm
[0.14 in]
dia.
3,6 mm
[0.14 in]
9,6 mm
[0.38 in]
11,9 mm
[0.47 in]
49,3 mm
[1.94 in]
25,4 mm
[1.00 in]
5,3 mm
[0.21 in]
SST plunger
16,2 mm
[0.64 in]
O.P.
11,9 mm
[0.47 in]
28,7 mm
[1.13 in]
F. P.
19,05 mm [0.75 in]
16 sensing.honeywell.com
BZ | BA | BM | BE | 6AS Series
6AS SERIES - PREMIUM LARGE SNAP-ACTION TANDEM SWITCH ASSEMBLY
The MICRO SWITCH™ 6AS Series consists of two large premium BZ/BA/BM/BE snap-action
switches ganged together and actuated by a single actuator. Operating characteristics are
dependent upon the type of individual switches and actuators chosen. Field adjustable operat-
ing point on one or both basic switches. Solder, A2, and T-type terminations available, along
with straight, roller, and leaf levers. Mounting holes accept pins or screws of 3,53 mm [0.139 in]
diameter. Often used for boiler controls or anywhere two circuits need to be controlled by one
actuator. O.F. • Operating force
R.F. • Release force
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
6AS SERIES ORDER GUIDE
Catalog
Listing
Recommended
For
Electrical
Data and
UL Codes
Lever
length
Terminal
type
O.F.
N [oz]
R.F. min.
N [ oz]
O.T. min.
mm [in]
D.T.
mm [in]
O.P.*
mm [in]
6AS34 Centered lever. Adjustment
over switch D
15 A
A
30,56 mm
[1.203 in] A2 2,22 [8] 0,14 [0.5] 0,51
[0.020]
2,77
[0.109]
29,77
[1.172]
6AS36 Lever over switch C.
Adjustment over switch D
15 A
A
30,56 mm
[1.203 in] A2 2,22 [8] 0,14 [0.5] 0,51
[0.020]
2,77
[0.109]
29,77
[1.172]
6AS16 Centered lever. Adjustment
over switch D
20 A
G
30,56 mm
[1.203 in] A2 3,89 [14] 1,11 [4] 1,02
[0.040]
3,96
[0.156]
30,96
±1,14
[1.219
±0.045]
6AS201
Lever over switch C.
No adjustment. Sealed
construction
15 A
A
26,67 mm
[1.05 in]
A2
and
D6
6,35 mm x
0,81 mm
[0.25 in x
0.32 in]
4,2 [15] 0,42 [1.5] 2,4
[0.094]
1,3
[0.050]
30,2
[1.188]
6AS5
Centered leaf. No adjust-
ment. Switches operate
within 0.030 in of each
other
15 A
A
38,38
[1.51] A2 – –
0,76 to
1,52
[0.030 to
0.060]
– –
6AS28 Centered lever. Adjustment
over switch C
20 A
G
32,26
[1.27] A2 3,89 [14] 1,11 [4] 1,02
[0.040] –18,67
[0.735]
* except where stated ±0,76 mm [±0.030 in]
17
sensing.honeywell.com
MICRO SWITCH™ Premium Large Basic Switches
STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
6AS Series: Straight Lever 6AS Series: Leaf actuator
6AS Series: Roller Lever
18 sensing.honeywell.com
BZ | BA | BM | BE | 6AS Series
OPERATING CHARACTERISTICS
Table 3. Operating Characteristics Definitions
Characteristic Description
Differential Travel-DT Plunger or actuator travel from point where contacts “snap-over” to point where they “snap-back.”
Free Position-FP Position of switch plunger or actuator when no external force is applied.
Full Overtravel Force Force required to attain full overtravel of actuator.
Operating Position-OP
Position of switch plunger or actuator at which point contacts snap from normal to operated position. With
flexible or adjustable actuators, the operating position is measured from the end of the lever or its maximum
length. Location of operating position measurement shown on mounting dimension drawings.
Operating Force-OF Amount of force applied to switch plunger or actuator to cause the contact “snap-over.” Note in the case of
adjustable actuators, the force is measured from the maximum length position of the lever.
Overtravel-OT Plunger or actuator travel safely available beyond operating position.
Pretravel-PT Distance or angle traveled in moving plunger or actuator from free position to operating position.
Release Force-RF Amount of force still applied to switch plunger or actuator at the moment contacts snap from operated position
to non-operated position.
Total Travel Distance from actuator free position to overtravel limit position.
19
sensing.honeywell.com
MICRO SWITCH™ Premium Large Basic Switches
AVAILABLE TERMINALS
ACTUATORS
BA, BE, BM, and BZ standard snap-action switches use the actuators described:
20 sensing.honeywell.com
BZ | BA | BM | BE | 6AS Series
LARGE PREMIUM SWITCH SERIES NOMENCLATURE TREE (NOT ALL CONFIGURATIONS AVAILABLE)
substitute
W Series for
SPNC circuitry
substitute
Y Series for
SPNO circuitry
– –
–
21
sensing.honeywell.com
MICRO SWITCH™ Premium Large Basic Switches
LARGE SNAP-ACTION SWITCH ACCESSORIES
Brackets
Description 8MA1 8MA2 17MA1-B
Description Adjustable mounting bracket with
adjustment slot on left
Adjustable mounting bracket with
adjustment slot on right
Conversion mounting bracket
Housing material Steel Steel Corrosion-resistant metal
Measurements 60,2 mm W x 21,3 mm H x 7,4 mm D [2.37 in W x 0.84 in H x 0.29 in D] 66,8 mm W x 19,0 mm D
[2.63 in W x 0.75 in D]
Features sturdy plated steel construction; fast, easy screwdriver adjustment; can be used
with most standard basic switches
converts standard basic switches from
side to top mount; corrosion resist-
ant; snaps into switch mounting holes
without tools
Die-cast Zinc Enclosures
Description 3PA1 3PA28 3PA2
Description mounted from either side through 3,55
mm [0.140 in] dia. holes on 25,4 mm
[1.0 in] centers; conduit/hub 0.5 – 14
NPT internal thread
mounted from either side through 3,55
mm [0.140 in] dia. holes on 25,4 mm
[1.0 in] centers. 1/2-14 NPSM internal
thread conduit hub
switch secured in enclosure; two 4,37
mm [0.172 in] dia. holes in flange ac-
cept #8 screws for mounting on 41,3
mm [1.625 in] centers; conduit/hub 0.5
– 14 NPT internal thread
Housing material die-cast zinc enclosure (side mount) die-cast zinc enclosure (side mount) die-cast zinc enclosure (flange mount)
Measurements 74,8 mm W x 42,9 mm H x 25,4 mm D
[2.95 in W x 1.69 in H x 1.00 in D]
74,8 mm W x 42,9 mm H x 25,4 mm D
[2.95 in W x 1.69 in H x 1.00 in D]
74,8 mm W x 42,9 mm H x 25,4 mm D
[2.95 in W x 1.69 in H x 1.00 in D]
Sealing/Features NEMA 1; IP 40; protects the switch from physical abuse and personnel from contact with exposed terminals
Plastic Thermal Enclosures
Description 5PA1 5PA2 5PA3
Description Plastic terminal enclosure used with
solder terminal switches
Plastic terminal enclosure use with
screw terminal switches
Plastic terminal enclosure used with
either solder or screw terminal switches
with auxiliary actuators assembled
Housing material plastic plastic plastic
Measurements 52,8 mm W x 16,1 mm H
[2.08 in W x 0.64 in H]
52,8 mm W x 20,2 mm H x 21,0 mm D
[2.08 in W x 0.80 in H x 0.83 in D]
52,8 mm W x 20,2 mm H x 21,0 mm D
[2.08 in W x 0.80 in H x 0.83 in D]
Sealing/Features NEMA 1, IP 40; easy to use; screw and solder terminal versions; protect personnel from contact with exposed terminals
22 sensing.honeywell.com
BZ | BA | BM | BE | 6AS Series
AUXILIARY ACTUATOR ORDER GUIDE
Catalog
Listing Description
Use
only
with
Overtravel min.
mm [in]
Operating Position*
mm [in]
Free Position
mm [in]
JR
Roller lever for “S” plunger
type BZ switches only. Permits
cam operation
BZ 11,1 mm [0.437 in] 44,45 mm ±3,18 mm
[1.75 in ±0.125 in] –
AD5721R
(M8805/59)
AN3169-1
Adjustable roller lever. Tang on
top of actuator can be bent to
adjust O.P. and F.P.
BZ, BM 11,1 mm [0.437 in]
approx.
31,75 mm to 41,15 mm
[1.25 in to 1.62 in]
39,6 mm to 43,7
mm [1.56 in to
1.72 in]
ADA3721R BA, BE 9,53 mm [0.375 in]
approx.
40,48 mm
[1.594 in] approx.
46,03 mm
[1.812 in]
MC2711
(M8805/59)
AN3168-2 Straight plunger. Panel mount
BZ, BM 4,78 mm [0.188 in] 27,79 mm [1.094 in] 29,4 mm [1.156 in]
MCA2711 BA, BE 3,96 mm [0.156 in] 28,17 mm [1.109 in] 30,18 mm
[1.188 in]
MC2711H Sealed straight plunger. Panel
mount. Elastomer boot seal
resists liquid splash and dirt.
Furnished unassembled.
BZ, BM 4,78 mm [0.188 in] 28,98 mm [1.141 in] 29,4 mm
[1.156 in]
MCA2711H BA, BE 4,37 mm [0.172 in] 27,38 mm ±0,76 mm
[1.078 in ±0.030 in]
29,56 mm
[1.156]
MD3211Q Roller plunger. Panel mount.
Roller parallel to long axis of
the switch
BZ, BM 3,18 mm [0.125 in]
approx. 35,7 mm [1.406 in] 37,69 mm
[1.484 in]
MDA3711Q BA, BE 3,18 mm [0.125 in] 36,12 mm [1.422 in] 37,69 mm
[1.484 in]
MD3211Q1 Cross roller plunger. Panel
mount. Roller perpendicular to
long axis of the switch
BZ, BM 3,18 mm [0.125 in]
approx. 35,7 mm [1.406 in] 37,69 mm
[1.484 in]
MDA3711Q1 BA, BE 3,18 mm [0.125 in] 36,12 mm [1.422 in] 37,69 mm
[1.484 in]
MC7711
(M8805/58)
AN3167-1 High overtravel plunger. Panel
mount
BZ, BM 20,62 mm
[0.812 in] 69,1 mm [2.719 in] 70,64 mm
[2.781 in]
MCA7711 BA, BE 19,84 mm
[0.781 in] 69,44 mm [2.734 in] 71,42 mm
[2.812 in]
* except where stated ±1,14 mm [±0.045 in]
NOTE: All actuators are for use with pin plunger types only, except catalog listing JR.
004955-4-EN IL50 GLO
August 2015
Copyright © 2015 Honeywell International Inc. All rights reserved.
Sensing and Productivity Solutions
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
honeywell.com
Find out more
Honeywell serves its customers
through a worldwide network
of sales offices, representatives
and distributors. For application
assistance, current specifications,
pricing or name of the nearest
Authorized Distributor, contact
your local sales office.
To learn more about Honeywell’s
sensing and control products,
call +1-815-235-6847 or
1-800-537-6945, visit
sensing.honeywell.com,
or e-mail inquiries to
info.sc@honeywell.com
ADDITIONAL INFORMATION
The following associated literature is available at
sensing.honeywell.com:
• Product installation instructions
• Product application-specific information
– Sensors and switches for potential HVAC/R applications
– Sensors and switches for valve monitors and valve indicators
– Sensors and switches in oil rig applications
– Sensors and switches in sanitary valves
• Case study
– A good range of mobility - BZ Series
• BZ/BA performance information
• Applying basic switches
• Low energy switching guide
• Product range guide
WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result in
death or serious injury.
WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
• Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship. Honeywell’s standard
product warranty applies unless agreed to otherwise by Honeywell
in writing; please refer to your order acknowledgement or consult
your local sales office for specific warranty details. If warranted
goods are returned to Honeywell during the period of coverage,
Honeywell will repair or replace, at its option, without charge those
items it finds defective. The foregoing is buyer’s sole remedy
and is in lieu of all other warranties, expressed or implied,
including those of merchantability and fitness for a particu-
lar purpose. In no event shall Honeywell be liable for conse-
quential, special, or indirect damages.
While we provide application assistance personally, through our
literature and the Honeywell website, it is up to the customer to
determine the suitability of the product in the application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this printing.
However, we assume no responsibility for its use.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Honeywell:
BA-2R708-P7 BA-2R-A2 BA-2RL-A2 BZ-2R BZ-2R24-A2 BZ-2R708-P7 BZ-2R710-PC2 BZ-2R-A2 BZ-2RD BZ-
2RD-A2 BZ-2RD-P1 BZ-2RD-P4 BZ-2RDS-A2-S BZ-2RDT BZ-2RL2 BZ-2RL204 BZ-2RL2-A2 BZ-2RL2T04 BZ-
2RL711 BZ-2RLT04 BZ-2RN702 BZ-2RN730 BZ-2RN784 BZ-2R-P4 BZ-2RQ1 BZ-2RQ104 BZ-2RQ13-A2 BZ-
2RQ172-A2 BZ-2RQ18 BZ-2RQ181 BZ-2RQ181-A2 BZ-2RQ1872-A2 BZ-2RQ18-A2 BZ-2RQ18T BZ-2RQ1-A2
BZ-2RQ1M-A2 BZ-2RQ1-P4 BZ-2RQ1T BZ-2RQ1T04 BZ-2RQ66 BZ-2RQ68 BZ-2RQ69 BZ-2RQ77 BZ-2RQ784
BZ-2RQ785 BZ-2RQ8-A2 BZ-2RQ-A2 BZ-2RS BZ-2RS-A2 BZ-2RST04 BZ-2RT BZ-2RT04 BZ-2RW80147-A2
BZ-2RW805551-A2 BZ-2RW82 BZ-2RW82113T BZ-2RW822 BZ-2RW8225551-A2 BZ-2RW8225551-A46 BZ-
2RW82299-A2 BZ-2RW822-A2 BZ-2RW822-D5 BZ-2RW822-P4 BZ-2RW822T BZ-2RW8244-A2 BZ-2RW825551-
A2 BZ-2RW825551-D6 BZ-2RW8299-A2 BZ-2RW82-A2 BZ-2RW84 BZ-2RW84-A2 BZ-2RW863-A2 BZ-2RW899-
A2 BZ-2RWT04 BZ-3RQ1-A2 BZ-3YT BZ-3YWT82 BZ-7RLT04 BZ-7RST BZ-7RT04 BZ-7RW204 BZ-7RW2T04
BZ-R178 BZ-R19-A2 BZ-R21 BZ-R21-A2 BZ-RQ1T04 BZ-RT04 BZ-RW8435-A2 BZ-RW9221 BZ-RW922-A2
6AS201 6AS25 6AS34 6AS5 BZ3RW82215555112D6S BZ-5RW822-A2F2 6AS36 BA-2R-A4 BA-2RL