MICRO SWITCH™
Commercial-Grade Toggle Switches
NT Series
Datasheet
2sensing.honeywell.com
What makes our switches better?
NEMA 3, 3R, 4, 13 and IP67/68 environmental sealing for
demanding applications
UL recognized, CSA certified, and CE certified for global use
1-, 2-, and 4-pole options to meet a variety of circuitry
requirements
2- or 3-position maintained and momentary action to meet
circuit and actuator requirements
Optional step-case design provides added space between
terminals to prevent shorting
MICRO SWITCH™ NT Series
Commercial-Grade Toggle Switches
Honeywell MICRO SWITCH™ NT Series toggle switches meet the need for a rugged, cost-effective toggle switch.
Quality construction features include a seal between the toggle lever and bushing, and between the cover and case.
These switches are suitable for applications in many demanding outdoor environments, where the panels are sub-
jected to vibration from equipment, temperature extremes, dust, splashing water, and/or hose directed water.
They are capable of withstanding exposure to heavy accumulations of early morning dew that may condense on the
control panel in cabs of vehicles left outdoors overnight. The NT toggle switches with larger standard metal or plastic
levers are well suited for gloved-hand operation.
Available in both step-base and at-base styles, the NT Series offers three popular styles of termination: 6-32 screws,
solder lugs with 3,0 mm [0.12 in] diameter hole, or 6,35 mm [0.25 in] quick connect terminals.
The optional “Easy Start” threaded bushing enables quick alignment of the mounting nut to minimize any cross
threading. The panel stand-off with O-ring feature available on some listings eliminates the need for behind-the-panel
hardware, provides a uniform panel height, and a panel-to-cover seal.
ENVIRONMENTAL SEALING • GLOBAL APPROVALS
MULTI-CIRCUITS • HIGH PERFORMANCE
Tough environmental sealing
makes harsh environments seem
like just another sunny day.
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sensing.honeywell.com
Features
and Benefits
Features
and Benefits
SEALED TO NEMA 3, 3R, 4, 13 AND IP67/IP68 FOR GLOBAL USE
MICRO SWITCH™ NT toggle switches feature a moveable seal between the
toggle lever and bushing and a completely sealed case to meet NEMA and IP
seal ratings. They are suitable for applications in many demanding outdoor
environments, where the panels are subjected to vibration from equipment,
temperature extremes, dust, splashing water, and/or hose directed water. UL
recognized, File E12252, Vol. 1, Section 44, CSA certified, and CE certified for
global use
WELL-SUITED FOR GLOVED-HAND OPERATION
Spring-loaded actuating mechanism provides excellent tactile feedback for
the toggle switch lever. The NT toggle switches with larger standard metal or
plastic levers are well suited for gloved-hand operation
LOCKING LEVERS
Optional lever locks (pull-to-unlock) require two separate actions to actuate the
switch in order to prevent unintended actuation
MINIMIZES INSTALLATION TIME
Optional flat base case design with a quick connect terminal pattern mates to a
commercial-type connector for plug-and-play connectivity, reducing installation
time
VARIETY OF CIRCUITRIES AND OPERATING ACTIONS
NT Series’ 2- and 3-position, maintained and momentary toggle action, for
a breadth of circuitry and actuator requirements. Delivers high performance in a
wide range of temperatures: -40 °C to 71 °C [-40 °F to 160 °F]
EASILY CONTROLS LOW-VOLTAGE DC APPLICATIONS
Toggle switches available with a choice of silver alloy or gold-plated contacts
to handle a variety of electrical load requirements
INNOVATIVE PRODUCT DESIGN
Optional engineered step-design case provides added space between terminals
to prevent shorting. Optional panel stand-off with O-ring panel seal eliminates
behind-the-panel hardware
Locking levers reduce unintended actuation
Excellent tactile feedback
4sensing.honeywell.com
AERIAL PLATFORM LIFTS
Momentary toggles are used to operate the movement of aerial platform lifts. Toggle
can be used to raise & lower, extend & retract and rotate platform or outriggers.
PLATFORM LIFTS FOR TRUCKS
Used to fold/unfold and raise/lower from a lift gate’s control panel.
INDUSTRIAL EQUIPMENT
Used in the control panel of overhead cranes and factory floor equipment.
RAILROAD LOCOMOTIVES AND MAINTENANCE EQUPMENT
Designed into control panels often found in locomotives, rail grinders, tie removal,
ballast spreaders, and tampers.
CONSTRUCTION EQUIPMENT
Used to operate movement of machinery and/or turn on lights, pumps, etc. in road
milling, road pavers, trenchers, stump cutting and other construction and mining
equipment. Also widely used for remote control of concrete pumping and drilling
machines.
AGRICULTURAL MACHINERY
Used in control panels for harvesting equipment, grain handlers, and grain dryers.
Potential Applications
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sensing.honeywell.com
MICRO SWITCH™ Commercial-Grade Toggle Switches
Table 1. Specifications
Characteristic Parameter
Description Commercial-grade toggle switch (step base and flat base options)
Sealing IP67/IP68; NEMA 3, 3R, 4, and 13
Operating temperature -40 °C to 71 °C [-40 °F to 160 °F]
Actuators Standard, locking, special design, tab
Action 2- or 3- position; momentary and maintained
Mounting Bushing 15/32 in (0.47 in) Ø
Circuitry SPST, SPDT, DPST, DPDT, 4PST, 4PDT
Terminations Screw, solder, quick connect
Contacts Silver alloy, gold plated
Amp rating Up to 20 A (resistive)
Approvals UL, CSA, CE
Measurement 26,7 mm H x 33,5 mm W x 22,6 mm D [1.05 in H x 1.32 in W x 0.89 in D]
Table 2. UL and CSA Electrical Ratings
Rating code Electrical rating
L192 10 amps, 125, 250, 277 Vac; ¼ Hp, 125 Vac; ½ Hp, 250, 277 Vac; 3 amps, 125 Vac “L”
L191 15 amps, 125, 250, 277 Vac; ½ Hp, 125 Vac; 1 Hp, 250, 277 Vac; 5 amps, 125 Vac “L”
Table 3. Electrical Ratings (in amperes)
Electrical rating code 28 Vdc 115 Vdc 250 Vdc 115 Vac, 60 Hz & 400 Hz
Max. 230 Vac
Ind. Res. Lamp Res. Res. Ind. Res. Lamp Res.
112 20 5 0.75 0.5 10 15 3 6
210 15 4 0.75 0.5 7 15 2 6
315 20 7 0.75 0.5 15 15 4 6
4 10 18 5 0.75 0.5 8 11 2 6
5 12 20 5 0.75 0.5 15 15 4 6
610 18 4 0.75 0.5 8 11 2 6
6sensing.honeywell.com
NT Series
TERMINAL CIRCUIT IDENTIFICATION
Terminal identications are referred to in the order guides to indi-
cate which circuits are made in each toggle position (i.e., 1-2 refers
to circuit closure through terminals 1 and 2).
NOTE: Keyside is on #3 terminal side.
Step Base - One Pole
Step Base - Two Pole
Step Base - Four Pole
Flat Base - One Pole
Flat Base - Two Pole
SPECIAL CIRCUITRIES
Catalog listings with -10, -50, and -70 suffix numbers, as shown
in the order guides, have special “on-on-on” circuits, as illus-
trated below. NTs with -12 suffix are the same as -50 except the
keyway position is maintained, and the center position circuits
2-3 and 4-5 are made.
-10 CIRCUITRY
No of
poles
Keyway Side
Maint. Position
Center Maint.
Position
Opposite
Keyway Maint.
Position
2
4
-50 CIRCUITRY
No of
poles
Keyway Side
Maint. Position
Center Maint.
Position
Opposite
Keyway Maint.
Position
2
4
-70 CIRCUITRY
No of
poles
Keyway Side
Maint. Position
Center Maint.
Position
Opposite
Keyway Maint.
Position
2
4
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sensing.honeywell.com
MICRO SWITCH™ Commercial-Grade Toggle Switches
NT (STEP BASE) 2-POSITION ORDER GUIDE
Circuits Made with Toggle At: Catalog Listing (Standard Lever) Pull-To-
Unlock Lever
(Add suffix to
Standard Lever
Listing)**
No. of
poles Keyway Position Opposite Keyway UL Rating
Code
Elect.
Rating
Code
Screw Solder Quick
Connect
1 OFF 2-3 L191 1 1NT1-2 11NT1-2 1NT91-2 D, F, G
1-2 2-3 L191 1 1NT1-3 11NT1-3 1NT91-3 D, F, G
OFF* 2-3 L192 2 1NT1-4 11NT1-4 1NT91-4 F
1-2* OFF L192 2 1NT1-6 11NT1-6 1NT91-6 F
1-2* 2-3 L192 2 1NT1-8 11NT1-8 1NT91-8 F
2 OFF 2-3, 5-6 L191 3 2NT1-2 12NT1-2 2NT91-2 D, F, G
1-2, 4-5 2-3, 5-6 L191 3 2NT1-3 12NT1-3 2NT91-3 F
OFF* 2-3, 5-6 L192 4 2NT1-4 12NT1-4 2NT91-4 F
1-2, 4-5* OFF L192 4 2NT1-6 12NT1-6 2NT91-6 D, F, G
1-2, 4-5* 2-3, 5-6 L192 4 2NT1-8 12NT1-8 2NT91-8 F
4 OFF 2-3, 5-6, 8-9, 11-12 L191 5 4NT1-2 14NT1-2 4NT91-2 D, F, G
1-2, 4-5, 7-8, 10-11 2-3, 5-6, 8-9, 11-12 L191 5 4NT1-3 14NT1-3 4NT91-3 F
OFF* 2-3, 5-6, 8-9, 11-12 L192 6 4NT1-4 14NT1-4 4NT91-4 F
1-2, 4-5, 7-8, 10-
11*
OFF L192 6 4NT1-6 14NT1-6 4NT91-6 D, F, G
1-2, 4-5, 7-8, 10-
11*
2-3, 5-6, 8-9, 11-12 L192 6 4NT1-8 14NT1-8 4NT91-8 F
* These positions are momentary. All others are maintained.
** See page 17 for locking congurations.
NT (STEP BASE) 2-POSITION ORDER GUIDE • PANEL STAND-OFF FEATURE
Circuits Made with Toggle At: Catalog Listing (Standard Lever)
No. of
poles Keyway Position Opposite Keyway UL Rating
Code
Elect. Rating
Code Screw Terminals
1 OFF 2-3 L191 1 61NT1-2
1-2 2-3 L191 1 61NT1-3
1-2* OFF L192 2 61NT1-6
1-2* 2-3 L192 2 61NT1-8
2 OFF 2-3, 5-6 L191 3 62NT1-2
1-2, 4-5 2-3, 5-6 L191 3 62NT1-3
1-2, 4-5* OFF L192 4 62NT1-6
1-2, 4-5* 2-3, 5-6 L192 4 62NT1-8
*These positions are momentary. All others are maintained.
NT (STEP BASE) 3-POSITION ORDER GUIDE • PANEL STAND-OFF FEATURE
Circuits Made with Toggle At: Catalog Listing (Standard Lever)
No. of
poles Keyway Position Center Position Opposite
Keyway
UL Rating
Code
Elect. Rating
Code Screw Terminals
1 1-2 OFF 2-3 L191 1 61NT1-1
1-2* OFF 2-3* L192 2 61NT1-7
2 1-2, 4-5 OFF 2-3, 5-6 L191 3 62NT1-1
1-2, 4-5* OFF 2-3, 5-6* L192 4 62NT1-7
*These positions are momentary. All others are maintained.
8sensing.honeywell.com
NT Series
NT (STEP BASE) 3-POSITION ORDER GUIDE
Circuits Made with Toggle At: Catalog Listing (Standard Lever) Pull-To-
Unlock Lever
(Add suffix to
Standard
Lever
Listing)***
No. of
poles Keyway Position Center Position Opposite Keyway
UL
Rating
Code
Elect.
Rating
Code
Screw Solder Quick
Connect
1 1-2 OFF 2-3 L191 1 1NT1-1 11NT1-1 1NT91-1 ALL TYPES
1-2* OFF 2-3 L192 2 1NT1-5 11NT1-5 1NT91-5 E, F, K, L,
M, N
1-2* OFF 2-3* L192 2 1NT1-7 11NT1-7 1NT91-7 E, L, N
NONE** OFF 2-3 L191 1 1NT1-21 11NT1-21 1NT91-21 E, F, K, M
NONE** 1-2 2-3 L191 1 1NT1-31 11NT1-31 1NT91-31 E, F, K, M
NONE** 1-2 2-3* L192 2 1NT1-51 11NT1-51 1NT91-51 E
1-2* OFF NONE** L192 2 1NT1-61 11NT1-61 1NT91-61 E
2 1-2, 4-5 OFF 2-3, 5-6 L191 3 2NT1-1 12NT1-1 2NT91-1 ALL TYPES
1-2, 4-5* OFF 2-3, 5-6 L192 4 2NT1-5 12NT1-5 2NT91-5 E, F, K, L,
M, N
1-2, 4-5* OFF 2-3, 5-6* L192 4 2NT1-7 12NT1-7 2NT91-7 E, L, N
NONE* OFF 2-3, 5-6 L191 3 2NT1-21 12NT1-21 2NT91-21 E, F, K, M
NONE** 1-2, 4-5 2-3, 5-6 L191 3 2NT1-31 12NT1-31 2NT91-31 E, F, K, M
NONE** 1-2, 4-5 2-3, 5-6* L192 4 2NT1-51 12NT1-51 2NT91-51 E
1-2, 4-5* OFF NONE** L192 4 2NT1-61 12NT1-61 2NT91-61 E
1-2, 4-5 2-3, 4-5 2-3, 5-6 L191 3 2NT1-12 12NT1-12 2NT91-12 ALL TYPES
1-2, 4-5 1-2, 5-6 2-3, 5-6 L191 3 2NT1-10 12NT1-10 2NT91-10 ALL TYPES
1-2, 4-5* 1-2, 5-6 2-3, 5-6 L192 4 2NT1-50 12NT1-50 2NT91-50 E, F, K, L,
M, N
1-2, 4-5* 1-2, 5-6 2-3, 5-6* L192 4 2NT1-70 12NT1-70 2NT91-70 E, L, N
4 1-2, 4-5, 7-8,
10-11
OFF 2-3, 5-6, 8-9, 11-12 L191 5 4NT1-1 14NT1-1 4NT91-1 ALL TYPES
1-2, 4-5, 7-8,
10-11*
OFF 2-3, 5-6, 8-9, 11-12 L192 6 4NT1-5 14NT1-5 4NT91-5 E, F, K, L,
M, N
1-2, 4-5, 7-8,
10-11*
OFF 2-3, 5-6, 8-9, 11-
12*
L192 6 4NT1-7 14NT1-7 4NT91-7 E, L, N
NONE* OFF 2-3, 5-6, 8-9, 11-12 L191 5 4NT1-21 14NT1-21 4NT91-21 E, F, K, M
NONE** 1-2, 4-5, 7-8,
10-11
2-3, 5-6, 8-9, 11-12 L191 5 4NT1-31 14NT1-31 4NT91-31 E, F, K, M
NONE** 1-2, 4-5, 7-8,
10-11
2-3, 5-6, 8-9, 11-
12*
L192 6 4NT1-51 14NT1-51 4NT91-51 E
1-2, 4-5, 7-8,
10-11*
OFF NONE** L192 6 4NT1-61 14NT1-61 4NT91-61 E
1-2, 4-5, 7-8,
10-11
2-3, 4-5, 7-8,
11-12
2-3, 5-6, 8-9, 11-12 L191 5 4NT1-12 14NT1-12 4NT91-12 ALL TYPES
1-2, 4-5, 7-8,
10-11
2-3, 4-5 2-3, 5-6, 8-9, 11-12 L191 5 4NT1-10 14NT1-10 4NT91-10 ALL TYPES
1-2, 4-5, 7-8,
10-11*
2-3, 4-5, 7-8,
11-12
2-3, 5-6, 8-9, 11-12 L192 6 4NT1-50 14NT1-50 4NT91-50 E, F, K, L,
M, N
1-2, 4-5, 7-8,
10-11*
2-3, 4-5 2-3, 5-6, 8-9, 11-
12*
L192 6 4NT1-70 14NT1-70 4NT91-70 E, L, N
1-2, 4-5, 7-8,
10-11*
2-3, 4-5, 7-8,
11-12
2-3, 5-6, 8-9, 11-
12*
L192 6 4NT1-72 – – E, L, N
* These positions are momentary. All others are maintained.
** Toggle lever is blocked from these products. Toggle becomes 2-position, with center being one extreme position.
*** See page 17 for locking congurations.
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sensing.honeywell.com
MICRO SWITCH™ Commercial-Grade Toggle Switches
NT (FLAT BASE) 2-POSITION ORDER GUIDE
Circuits Made with Toggle At: Catalog Listing
No. of
poles Keyway Position Opposite Keyway UL Rating Code Elect. Rating
Code Quick Connect
1 OFF 2-3 L191 1 31NT91-2
1-2 2-3 L191 1 31NT91-3
OFF** 2-3 L192 2 31NT91-4
1-2** OFF L192 2 31NT91-6
1-2** 2-3 L192 2 31NT91-8
2 OFF 2-3, 5-6 L191 3 32NT91-2
1-2, 4-5 2-3, 5-6 L191 3 32NT91-3
OFF** 2-3, 5-6 L192 4 32NT91-4
1-2, 4-5** OFF L192 4 32NT91-6
1-2, 4-5** 2-3, 5-6 L192 4 32NT91-8
** These positions are momentary. All others are maintained.
NT (FLAT BASE) 2-POSITION ORDER GUIDE • PANEL STAND-OFF FEATURE
Circuits Made with Toggle At: Catalog Listing (Standard Lever)
No. of
poles Keyway Position Opposite Keyway UL Rating
Code
Elect. Rating
Code Quick Connect
1 OFF 2-3 L191 1 631NT91-2
1-2** 2-3 L191 1 631NT91-3
OFF 2-3 L192 2 631NT91-4
1-2** OFF L192 2 631NT91-6
1-2** 2-3 L192 2 631NT91-8
2 OFF 2-3, 5-6 L191 3 632NT91-2
1-2, 4-5 2-3, 5-6 L191 3 632NT91-3
OFF** 2-3, 5-6 L192 4 632NT91-4
1-2, 4-5** OFF L192 4 632NT91-6
1-2, 4-5** 2-3, 5-6 L192 4 632NT91-8
**These positions are momentary. All others are maintained
MATING CONNECTORS ORDER GUIDE
Catalog listing Description
19PA168-NT 2-pole connector
19PA169-NT 1-pole connector, same package size as 2-pole connector
10 sensing.honeywell.com
NT Series
NT (FLAT BASE) 3-POSITION ORDER GUIDE
Circuits Made with Toggle At: Catalog Listing (Standard Lever)
No. of
poles Keyway Position Center Position Opposite
Keyway
UL Rating
Code
Elect. Rating
Code Quick Connect
1 1-2 OFF 2-3 L191 1 31NT91-1
1-2** OFF 2-3 L192 2 31NT91-5
1-2** OFF 2-3** L192 2 31NT91-7
NONE*** OFF 2-3 L191 1 31NT91-21
NONE*** 1-2 2-3 L191 1 31NT91-31
NONE*** 1-2 2-3** L192 2 31NT91-51
1-2** OFF NONE*** L192 2 31NT91-61
2 1-2, 4-5 OFF 2-3, 5-6 L191 3 32NT91-1
1-2, 4-5** OFF 2-3, 5-6 L192 4 32NT91-5
1-2, 4-5** OFF 2-3, 5-6** L192 4 32NT91-7
NONE*** OFF 2-3, 5-6 L191 3 32NT91-21
NONE*** 1-2, 4-5 2-3, 5-6 L191 3 32NT91-31
NONE*** 1-2, 4-5 2-3, 5-6** L192 4 32NT91-51
1-2, 4-5** OFF NONE*** L192 4 32NT91-61
1-2, 4-5 2-3, 5-6 2-3, 5-6 L191 3 32NT91-12
1-2, 4-5 1-2, 5-6 2-3, 5-6 L191 3 32NT91-10
1-2, 4-5** 1-2, 5-6 2-3, 5-6 L192 4 32NT91-50
1-2, 4-5** 1-2, 5-6 2-3, 5-6** L192 4 32NT91-70
** These positions are momentary. All others are maintained.
*** Toggle lever is blocked from these positions. Toggle becomes 2-position, with center being one extreme position.
NT (FLAT BASE) 3-POSITION ORDER GUIDE • PANEL STAND-OFF FEATURE
Circuits Made with Toggle At: Catalog Listing (Standard Lever)
No. of
poles Keyway Position Center Position Opposite
Keyway
UL Rating
Code
Elect. Rating
Code Quick Connect
1 1-2** OFF 2-3** L192 2 631NT91-7
1-2 OFF 2-3 L191 1 631NT91-1
1-2** OFF 2-3 L191 2 631NT91-5
2 1-2, 4-5 OFF 2-3, 5-6 L191 3 632NT91-1
1-2, 4-5** OFF 2-3, 5-6 L192 4 632NT91-5
1-2, 4-5** OFF 2-3, 5-6** L192 4 632NT91-7
1-2, 4-5** 1-2, 5-6 2-3, 5-6** L192 4 632NT91-70
** These positions are momentary. All others are maintained
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sensing.honeywell.com
MICRO SWITCH™ Commercial-Grade Toggle Switches
STEP BASE • STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Three-position switches shown
1NT1: Single pole, standard lever,
screw terminals
1NT91: Single pole, standard lever,
quick-connect terminals
11NT1: Single pole, standard lever,
solder terminals
10,9 mm
[0.43 in]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
31° ±7° total travel
15° 30’ ±3° 30’
Ø 6,09 mm [Ø 0.24 in]
15/32 - 32 UNS 2A thread
to within 1,52 mm
[0.060 in] of shoulder
Sealed to prevent entrance
of liquids or dust
17,0 mm [0.67 in]
11,9 mm
[0.47 in] 6,1 mm [0.24 in]
29,5 mm
[1.16 in]
23,1 mm
[0.91 in]
3X 6-32 UNC-2A X (0.260)
binding head terminal
screw and lockwasher
(sems)
28,4 mm
[1.12 in]
4,8 mm
[0.19 in]
15,7 mm [0.62 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
10,9 mm
[0.43 in]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
31° ±7° total travel
15° 30’ ±3° 30’
Ø 6,09 mm [Ø 0.24 in]
15/32 - 32 UNS 2A
thr
ead to within 1,52 mm
[0.060 in] of shoulder
Sealed to prevent
entrance of
liquids or dust
17,0 mm [0.67 in]
11,9 mm
[0.47 in] 6,1 mm [0.24 in]
23,1 mm
[0.91 in]
28,4 mm
[1.12 in]
4,8 mm
[0.19 in]
15,7 mm [0.62 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
3X 0.250 in QC terminal
41,99 mm ±0,76 mm
[1.653 in ±0.030 in] 10,9 mm
[0.43 in]
10,9 mm
[0.43 in]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
31° ±7° total travel
15° 30’ ±3° 30’
Ø 6,09 mm [Ø 0.24 in]
15/32 - 32 UNS 2A thread
to within 1,52 mm [0.060 in]
of shoulder
Sealed to prevent entrance
of liquids or dust
17,0 mm [0.67 in]
11,9 mm
[0.47 in] 6,1 mm [0.24 in]
29,5 mm
[1.16 in]
23,1 mm
[0.91 in]
3X 8,51 mm ±0,38 mm
[3X 0.335 in ±0.015 in]
28,4 mm
[1.12 in]
4,8 mm
[0.19 in]
15,7 mm [0.62 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
3X Ø 5,33 mm ±0,64 mm
[3X Ø 0.210 in ±0.025 in]
Locking lever dimensions for
single pole NT toggles
26,67 mm
[1.05 in]
Ø 10,67 mm
[Ø 0.42 in]
31° ±7°
total travel
15° ±3°
2,28 mm
[0.090 in]
approx. pullout
to change
position
12 sensing.honeywell.com
NT Series
STEP BASE • STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Three-position switches shown
2NT1: Double pole, standard lever,
screw terminals
2NT91: Double pole, standard lever,
quick-connect terminals
12NT1: Double pole, standard lever,
solder terminals
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
34° ±8° total travel
Ø 6,09 mm [Ø 0.24 in]
17° ±4°
Sealed to prevent
entrance of
liquids or dust
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
17,0 mm [0.67 in]
11,9 mm
[0.47 in] 6,1 mm [0.24 in]
34,29 mm
[1.35 in]
3,3 mm min.
[0.130 in min.]
27,94 mm
[1.10 in]
3,3 mm min.
[0.130 in min.]
6,6 mm
[0.26 in]
22,6 mm
[0.89 in]
9,7 mm
[0.38 in]
33,53 mm
[1.32 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
7,1 mm
[0.28 in]
6X 6-32
UNC-2A x (0.260)
binding head terminal
screw and lockwsher
(sems)
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
17,0 mm [0.67 in]
11,9 mm
[0.47 in] 6,1 mm [0.24 in]
Sealed to prevent
entrance of
liquids or dust
34° ±8° total travel
Ø 6,09 mm [Ø 0.24 in]
17° ±4°
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
11,18 mm
[0.44 in]
6X 0.250 in wide
QC terminal
41,99 mm ±0,76 mm
[1.653 in ±0.030 in]
27,94 mm
[1.10 in]
3,3 mm min.
[0.130 in min.]
33,53 mm
[1.32 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
7,1 mm
[0.28 in]
9,7 mm
[0.38 in]
6,6 mm
[0.26 in]
22,6 mm
[0.89 in]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
34° ±8° total travel
Ø 6,09 mm [Ø 0.24 in]
17° ±4°
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
17,0 mm [0.67 in]
Sealed to prevent
entrance of
liquids or dust
11,9 mm
[0.47 in] 6,1 mm [0.24 in]
27,94 mm
[1.10 in]
3,3 mm min.
[0.130 in min.]
2X 39,24 mm ±0,76 mm
[2X 1.545 in ±0.030 in]
6X 8,5 mm ±0,76 mm
[6X 0.335 in ±0.030 in]
6X 5,33 mm ±0,635 mm
[6X Ø 0.210 in ±0.025 in]
6,6 mm
[0.26 in]
22,6 mm
[0.89 in]
9,7 mm
[0.38 in]
33,53 mm
[1.32 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
7,1 mm
[0.28 in]
Locking lever dimensions for
double pole NT toggles
26,67 mm
[1.05 in]
Ø 10,67 mm
[Ø 0.42 in]
34° ±8°
total travel
17° ±4°
2,28 mm
[0.090 in]
approx. pullout
to change
position
13
sensing.honeywell.com
MICRO SWITCH™ Commercial-Grade Toggle Switches
STEP BASE • STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Three-position switches shown
4NT1: Four-pole, standard lever,
screw terminals
4NT91: Four-pole, standard lever,
quick-connect terminals
14NT1: Four-pole, standard lever,
solder terminals
1,93 mm ±0,20 mm
wide keyway
[0.076 in ±0.008
wide keyway]
10,9 mm
[0.43 in]
34° ±8° total travel
17° ±4°
10,9 mm
[0.43 in]
Ø 6,09 mm [Ø 0.24 in]
Sealed to prevent
entrance of
liquids or dust
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
3,05 mm
[0.12 in]
11,9 mm
[0.47 in]
17,01 mm
[0.67 in]
27,94 mm
[1.10 in] 3,3 mm min.
[0.130 in min.]
6,1 mm [0.24 in]
34,29 mm
[1.35 in]
6,6 mm
[0.26 in]
41,66 mm
[1.64 in] 9,4 mm
[0.37 in]
33,53 mm
[1.32 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
7,1 mm [0.28 in]
9,4 mm
[0.37 in]
9,4 mm
[0.37 in]
6,4 mm [0.25 in]
3,3 mm min. [0.130 in min.]
12X 6-32 UNC-2 X
(0.260) binding head
terminal screw and
lockwasher (sems)
1,93 mm ±0,20 mm
wide keyway
[0.076 in ±0.008
wide keyway]
10,9 mm
[0.43 in]
34° ±8° total travel
Ø 6,09 mm [Ø 0.24 in]
Sealed to prevent
entrance of
liquids or dust
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
3,05 mm
[0.12 in]
17,27 mm
[0.68 in]
17° ±4°
11,9 mm
[0.47 in]
27,94 mm
[1.10 in]
6,1 mm [0.24 in]
3,3 mm min.
[0.130 in min.]
41,99 mm ±0,76 mm
[1.653 in ±0.030 in]
6,6 mm
[0.26 in]
41,66 mm
[1.64 in] 9,4 mm
[0.37 in]
33,53 mm
[1.32 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
7,1 mm [0.28 in]
9,4 mm
[0.37 in]
9,4 mm
[0.37 in]
11,2 mm
[0.44 in]
12X 0.25 in wide
quick connect
terminal
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
34° ±8° total travel
Ø 6,09 mm [Ø 0.24 in]
17° ±4°
Sealed to prevent
entrance of
liquids or dust
11,9 mm
[0.47 in]
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
27,94 mm
[1.10 in]
3,3 mm min.
[0.130 in min.]
6,1 mm [0.24 in]
4X 39,24 mm ±0,76 mm
[4X 1.545 in ±0.030 in]
12X 8,5 mm ±0,38 mm
[12X 0.335 in ±0.015 in]
12X 5,33 mm ±0,635 mm
[12X Ø 0.210 in ±0.025 in]
6,6 mm
[0.26 in]
41,66 mm
[1.64 in] 9,4 mm
[0.37 in]
33,53 mm
[1.32 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
7,1 mm [0.28 in]
9,4 mm
[0.37 in]
9,4 mm
[0.37 in]
3,05 mm [0.12 in]
17,27 mm
[0.68 in]
Locking lever dimensions for
four-pole NT toggles
26,67 mm
[1.05 in]
Ø 10,67 mm
[Ø 0.42 in]
34° ±8°
total travel
17° ±4°
2,28 mm
[0.090 in]
approx. pullout
to change
position
14 sensing.honeywell.com
NT Series
STEP BASE • STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Three-position switches shown
61NT1: Single pole, standard lever,
panel standoff, screw terminals
62NT1: Double pole, standard lever,
panel standoff, screw terminals
10,9 mm
[0.43 in]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
31° ±7° total travel
15° 30’ ±3° 30’
Ø 6,09 mm [Ø 0.24 in]
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
Sealed to prevent
entrance of
liquids or dust
17,0 mm [0.67 in]
Panel seal
29,5 mm
[1.16 in]
23,1 mm
[0.91 in]
12,45 mm
[0.49 in]
7,4 mm
[0.29 in]
3X 6-32 UNC-2A
X (0.260) binding
head terminal
screw and
lockwasher
(sems)
28,4 mm
[1.12 in]
4,8 mm
[0.19 in]
15,7 mm [0.62 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
34° ±8° total travel
Ø 6,09 mm [Ø 0.24 in]
17° ±4°
Sealed to prevent
entrance of
liquids or dust
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
17,0 mm [0.67 in
]
34,29 mm
[1.35 in]
3,3 mm min.
[0.130 in min.]
27,94 mm
[1.10 in] 3,3 mm min.
[0.130 in min.]
6,6 mm
[0.26 in]
22,6 mm
[0.89 in]
9,7 mm
[0.38 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
12,45 mm
[0.49 in]
7,4 mm
[0.29 in]
Panel seal
6X 6-32
UNC-2A x (0.260)
binding head termina
l
scr
ew and lockwsher
(sems)
33,53 mm
[1.32 in]
7,1 mm
[0.28 in]
15
sensing.honeywell.com
MICRO SWITCH™ Commercial-Grade Toggle Switches
FLAT BASE • STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Three-position switches shown
31NT91: Single pole, standard lever,
quick-connect terminals
631NT91: Single pole, standard lever,
panel standoff, quick-connect terminals
10,9 mm
[0.43 in]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
31° ±7° total travel
15° 30’ ±3° 30’
Ø 6,09 mm [Ø 0.24 in]
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
Sealed to prevent
entrance of
liquids or dust
17,0 mm [0.67 in]
11,9 mm
[0.47 in]
24,13 mm
[0.95 in]
3X 0.250 in QC terminal
34,8 mm ±0,76 mm
[1.37 in ±0.030 in]
6,1 mm
[0.24 in]
28,4 mm
[1.12 in]
15,7 mm [0.62 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
4,8 mm
[0.19 in]
10,9 mm
[0.43 in]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
31° ±7° total travel
15° 30’ ±3° 30’
Ø 6,09 mm [Ø 0.24 in]
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
Sealed to prevent
entrance of
liquids or dust
17,0 mm [0.67 in]
12,45 mm
[0.49 in]
7,4 mm
[0.29 in]
Panel seal
24,13 mm
[0.95 in]
3X 0.250 in
QC terminal
34,8 mm ±0,76 mm
[1.37 in ±0.030 in]
28,4 mm
[1.12 in]
15,7 mm [0.62 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
4,8 mm
[0.19 in]
32NT91: Double pole, standard lever,
quick-connect terminals
632NT91: standard lever,
panel standoff, quick-connect terminals
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
17,0 mm [0.67 in]
11,9 mm
[0.47 in] 6,1 mm [0.24 in]
Sealed to prevent
entrance of
liquids or dust
34° ±8° total travel
Ø 6,09 mm [Ø 0.24 in]
17° ±4°
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
6X 0.250 in wide
QC terminal
36,12 mm ±0,76 mm
[1.422 in ±0.030 in]
25,15 mm
[0.99 in]
33,53 mm
[1.32 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
7,1 mm
[0.28 in]
9,7 mm
[0.38 in]
6,6 mm
[0.26 in]
22,6 mm
[0.89 in]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
17,0 mm [0.67 in
]
12,4 mm
[0.49 in]
7,4 mm [0.29 in]
Sealed to prevent
entrance of
liquids or dust
34° ±8° total travel
Ø 6,09 mm [Ø 0.24 in]
17° ±4°
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
6X 0.250 in wide
QC terminal
36,12 mm ±0,76 mm
[1.422 in ±0.030 in]
Panel seal
33,53 mm
[1.32 in]
19,05 mm
[0.75 in]
7,1 mm
[0.28 in]
9,7 mm
[0.38 in]
6,6 mm
[0.26 in]
22,6 mm
[0.89 in]
9,7 mm
[0.38 in]
16 sensing.honeywell.com
NT Series
MICRO SWITCH™ NT SERIES LOCKING CONFIGURATIONS
PULL-TO-UNLOCK LEVERS
Pull-to-unlock toggle levers prevent accidental toggle movement. The knobbed toggle lever must be pulled out approximately 2,3 mm
[0.09 in] to change positions. Thirteen different locking configurations are available. This lever style also has a non-glare matte nickel
finish. See table below for specific locking configurations.
MICRO SWITCH™ NT SERIES PANEL CUTOUT
17
sensing.honeywell.com
MICRO SWITCH™ Commercial-Grade Toggle Switches
This Honeywell datasheet supports the following MICRO SWITCH™ NT Series Toggle Switch Listings
11NT1-2
11NT1-3
11NT1-3D
11NT1-3G
11NT1-5
11NT1-6
11NT1-7
11NT1-7-NH
12NT1-1
12NT1-10
12NT1-2
12NT1-3
12NT1-7
14NT1-3
14NT1-5
14NT1-6
14NT1-7
14NT1-8
1NT1-1
1NT1-1A
1NT1-1-C
1NT1-1L
1NT1-1N
1NT1-1-NH
1NT1-1P
1NT1-2
1NT1-21
1NT1-2-C
1NT1-2D
1NT1-2F
1NT1-2G
1NT1-3
1NT1-31
1NT1-3-C
1NT1-3D
1NT1-3F
1NT1-3-NH
1NT1-4
1NT1-5
1NT1-51
1NT1-5-C
1NT1-5N
1NT1-6
1NT1-61
1NT1-6F
1NT1-7
1NT1-7-C
1NT1-7-COMB
1NT1-7E
1NT1-7-NH
1NT1-7-SKY
1NT1-8
1NT1-8-C
1NT1-8F
1NT1-8-NH
1NT20-7E
1NT20-7N
1NT231-7
1NT887-1
1NT887-2
1NT887-21K
1NT887-3
1NT887-5
1NT887-6
1NT887-7
1NT887-7E
1NT887-8
1NT91-1
1NT91-1E
1NT91-2
1NT91-2G
1NT91-3
1NT91-3D
1NT91-5
1NT91-5E
1NT91-6
1NT91-61
1NT91-7
2NT101-7
2NT1-1
2NT1-10
2NT1-10A
2NT1-10J
2NT1-12
2NT1-1A
2NT1-1-C
2NT1-1E
2NT1-1L
2NT1-1N
2NT1-1-NH
2NT1-2
2NT1-21
2NT1-2-C
2NT1-2G
2NT1-3
2NT1-31
2NT1-3-C
2NT1-3D
2NT1-3-NH
2NT1-4
2NT1-5
2NT1-50
2NT1-50F
2NT1-51
2NT1-5M
2NT1-5N
2NT1-6
2NT1-61
2NT1-7
2NT1-70
2NT1-70-C
2NT1-72
2NT1-7-COMB
2NT1-7E
2NT1-7-NH
2NT1-8
2NT1-8-C
2NT1-8-COMB
2NT1-8-NH
2NT231-7
2NT887-10
2NT889-70
2NT91-1
2NT91-10
2NT91-1A
2NT91-2
2NT91-3
2NT91-3D
2NT91-5
2NT91-50
2NT91-50K
2NT91-6
2NT91-7
2NT91-70
2NT91-7-NH
2NT91-8
31NT1-1
31NT1-2
31NT1-7
31NT391-1-B02
31NT391-1-B08
31NT391-1-C02
31NT391-21-C08
31NT391-2-B02
31NT391-2-B08
31NT391-2-C02
31NT391-2-C08
31NT391-3-C08
31NT391-3-C09
31NT391-5-C08
31NT391-6-B08
31NT391-6-C07
31NT391-6-C08
31NT391-7-A07
31NT391-7-B08
31NT391-7-C02
31NT391-7-C07
31NT391-7-C08
31NT391-8-C02
31NT391-8-C08
31NT392-2-C08
31NT393-3-B08
31NT393-7-C08
31NT394-7
31NT491-7-PL02
31NT891-1
31NT891-2
31NT891-3
31NT891-7
31NT91-1
31NT91-1-OMC
31NT91-2
31NT91-206-PL01
31NT91-21
31NT91-2F
31NT91-3
31NT91-31
31NT91-5
31NT91-51
31NT91-6
31NT91-61
31NT91-6F
31NT91-7
31NT91-7-NH
31NT91-8
31NT92-2
31NT92-3
31NT92-6
32NT1-3
32NT1-70
32NT291-3G
32NT291-5E
32NT291-5K
32NT391-12-C08
32NT391-1-C02
32NT391-1-C08
32NT391-2-B02
32NT391-2-C07
32NT391-2-C08
32NT391-3-C07
32NT391-3-C08
32NT391-51-A01
32NT391-56-C08
32NT391-70-C08
32NT391-72-C08
32NT391-7-A02
32NT391-7-C07
32NT391-7-C08
32NT392-12-C08
32NT392-6-C08
32NT392-7-C08
32NT891-1
32NT891-2
32NT891-3
32NT891-7
32NT91-1
32NT91-10
32NT91-12
32NT911-3D
32NT911-7
32NT91-2
32NT91-21
32NT91-227
32NT91-3
32NT91-31
32NT91-4
32NT91-5
32NT91-50
32NT91-52E
32NT91-6
32NT91-61
32NT91-7
32NT91-70
32NT91-72
32NT91-7E
32NT91-7-NH
32NT91-8
32NT92-1
32NT92-10
32NT92-3
32NT94-70L
4NT1-1
4NT1-10
4NT1-10E
4NT1-119
4NT1-12
4NT1-12A
4NT1-1A
4NT1-1E
4NT1-2
4NT1-3
4NT1-3D
4NT1-5
4NT1-50
4NT1-6
4NT1-61
4NT1-7
4NT1-70
4NT1-72
4NT1-8
4NT207-1E
4NT319-7-C08
4NT91-1
4NT91-3
4NT91-5
4NT91-7
4NT91-70
611NT1-7
61NT1-1
61NT1-1-NH
61NT1-2
61NT1-3
61NT1-3-A04
61NT1-3-NH
61NT1-5
61NT1-6
61NT1-6-A01
61NT1-7
61NT1-7-NH
61NT1-8
61NT1-8-NH
61NT887-1
61NT887-3
61NT887-5
61NT887-7
61NT887-8
61NT91-2
62NT1-1
62NT1-1-NH
62NT1-2
62NT1-3
62NT1-3-A04
62NT1-3-NH
62NT1-6
62NT1-7
62NT1-7-NH
62NT1-8
62NT1-8-NH
62NT91-1
62NT91-1-NH
631NT391-3-B08
631NT91-2
631NT91-3
631NT91-6
631NT91-7
631NT91-7-NH
632NT91-1
632NT91-2
632NT91-3
632NT91-5
632NT91-6
632NT91-7
632NT91-70
18 sensing.honeywell.com
NT Series
ADDITIONAL INFORMATION
The following associated literature is available at
sensing.honeywell.com:
• Product range guide
• Product application-specific information
– Sensors and switches in front loaders
– Sensors and switches in mobile cranes
– Sensors and switches in oil rig applications
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.
005429-4-EN IL50 GLO
June 2014
Copyright © 2014 Honeywell International Inc. All rights reserved.
Sensing and Control
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
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Honeywell:
11NT1-6 12NT1-10 14NT1-3 2NT889-70 2NT91-50K 31NT391-1-B08 31NT391-1-C02 31NT391-2-C02
31NT391-7-A07 31NT391-7-B08 31NT391-8-C08 31NT393-3-B08 31NT891-1 31NT891-2 31NT891-3 31NT891-7
31NT91-206-PL01 31NT91-2F 31NT91-6F 31NT91-7-NH 31NT92-2 31NT92-3 31NT92-6 32NT391-2-C08
32NT391-3-C08 32NT391-51-A01 32NT391-56-C08 32NT391-70-C08 32NT391-72-C08 32NT391-7-A02 32NT891-
1 32NT891-2 32NT891-7 32NT91-72 32NT92-1 32NT92-3 611NT1-7 61NT1-3-A04 61NT1-5 61NT1-6-A01
631NT391-3-B08 631NT91-3 2NT1-31 1NT91-1E 2NT1-1L 2NT1-7E 32NT391-7-C08 2NT101-7
