Step Base Toggle Switch
MICRO SWITCH™ NT Series
DESCRIPTION
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
can be used where panels are subject to splashes, hose downs,
or outdoor environments. Complete sealing of the switching
chamber enables NT toggles to comply with UL 508, paragraph
13.3 hose down test. They will also withstand exposure to heavy
accumulations of early morning dew that may condense on the
control panel in cabs of vehicles left outdoors overnight.
The “Easy Start” threaded bushing enables quick alignment of
the mounting nut to decrease the chance of 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 provides a panel-to-cover seal.
FEATURES
• Completelysealedswitchingchamber
• IP67/IP68
• NEMA3,3R,4,13
• 2-or3-positionmaintainedandmomentaryaction
• Step-designcaseprovidesaddedspacebetweenterminals
to prevent shorting
• Spring-loadedactuatingmechanismprovidesexcellent
tactile feedback
• ULrecognized,FileE12252,Vol.1,Section44
• CSAcertied,CEcertied
• Optionalpanelstand-offwithO-ringpanelseal
POTENTIAL APPLICATIONS
Aerospace/Military
• Militaryandcommercialaviation
Industrial
• Constructionequipment
• Industrialequipment
• Processcontrol
• Testinstruments
Medical
• Medicalinstrumentation
Transportation
• Agriculturalmachinery
2Honeywell•SensingandControl
MICRO SWITCH™ NT Series
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”
ELECTRICAL RATINGS
Electrical Rating
Code 28 Vdc 115 Vdc 250 Vdc 115 Vac,
60 Hz & 400 Hz 230 Vac
Ind. Res. Lamp Res. Res. Ind. Res. Lamp Res
112 20 50.75 0.5 10 15 3 6
210 15 4 0.75 0.5 715 2 6
315 20 7 0.75 0.5 15 15 4 6
410 18 5 0.75 0.5 8 11 2 6
SPECIFICATIONS
Characteristic Parameter
Description Industrial-grade toggle switch (flat base)
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
Circuitry SPST,SPDT,DPST,DPDT,4PST,4PDT
Terminations Solder, screw, quick connect
Contacts Silver alloy
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]
Honeywell•SensingandControl3
Step-Base Toggle Switch
STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Single pole NT switches shown
Description Top Front Bottom
Standard Lever,
QC Terminals
Locking Lever, QC
Terminals
Standard Lever,
Solder Terminals
4Honeywell•SensingandControl
MICRO SWITCH™ NT Series
STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Single pole NT switches shown
Description Top Front Bottom
Locking Lever,
Solder Terminals
Standard Lever,
Screw Terminals
Locking Lever,
Screw Terminals
Honeywell•SensingandControl5
Step-Base Toggle Switch
STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Single pole NT switches shown
Description Top Front Bottom
Standard Lever
PanelStand-off
Feature
Screw Terminals
6Honeywell•SensingandControl
MICRO SWITCH™ NT Series
NT 2-POSITION ORDER GUIDE
Circuits Made with Toggle At: Catalog Listing (Standard Lever)
No. of
poles Keyway Position Opposite Keyway UL Rating
Code
Elect. Rat-
ing Code Screw Solder Q-C
Pull-To-Unlock
Lever (Add suffix
to Standard Lever
Listing)
1OFF 2-3 L191 11NT1-2 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
2OFF 2-3,5-6 L191 32NT1-2 12NT1-2 2NT91-2 D,F,G
1-2,4-5 2-3,5-6 L191 32NT1-3 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
4OFF 2-3,5-6,8-9,11-12 L191 54NT1-2 14NT1-2 4NT91-2 D,F,G
1-2,4-5,7-8,10-11 2-3,5-6,8-9,11-12 L191 54NT1-3 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
NT 2-POSITION ORDER GUIDE • PANEL STAND-OFF FEATURE
Circuits Made with Toggle At:
No. of poles Keyway Position Opposite Keyway UL Rating Code Elect. Rating Code Catalog Listing
Screw
1OFF 2-3 L191 161NT1-2
1-2 2-3 L191 161NT1-3
1-2* OFF L192 2 61NT1-6
1-2* 2-3 L192 2 61NT1-8
2OFF 2-3,5-6 L191 362NT1-2
1-2,4-5 2-3,5-6 L191 362NT1-3
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 3-POSITION ORDER GUIDE • PANEL STAND-OFF FEATURE
Circuits Made with Toggle At:
No. of poles Keyway Position Center Position Opposite Keyway UL Rating Code Elect. Rating
Code
Catalog Listing
Screw
11-2 OFF 2-3 L191 161NT1-1
1-2* OFF 2-3* L192 2 61NT1-7
21-2,4-5 OFF 2-3,5-6 L191 362NT1-1
1-2,4-5 OFF 2-3,5-6* L192 4 62NT1-7
*Thesepositionsaremomentary.Allothersaremaintained.
Honeywell•SensingandControl7
Step-Base Toggle Switch
NT 3-POSITION ORDER GUIDE
Circuits Made with Toggle At: Catalog Listing
No. of
poles
Keyway Position Center Position Opposite Keyway
UL
Rat-
ing
Code
Elect.
Rat-
ing
Code
Screw Solder Q-C
Pull-To-
Unlock
Lever (Add
suffix to
Standard Le-
ver Listing)
11-2 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 11NT1-21 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
21-2,4-5 OFF 2-3,5-6 L191 32NT1-1 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 32NT1-21 12NT1-21 2NT91-21 E,F,K,M
NONE** 1-2,4-5 2-3,5-6 L191 32NT1-31 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 32NT1-12 12NT1-12 2NT91-12 ALLTYPES
1-2,4-5 1-2,5-6 2-3,5-6 L191 32NT1-10 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
41-2,4-5,7-8,10-11 OFF 2-3,5-6,8-9,11-12 L191 54NT1-1 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 54NT1-21 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 54NT1-31 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 54NT1-12 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 54NT1-10 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
*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.
8Honeywell•SensingandControl
MICRO SWITCH™ NT Series
MICRO SWITCH NT™ SERIES LOCKING CONFIGURATIONS
This Honeywell datasheet supports the following MICRO SWITCH™ NT Series Toggle Switch (Step Base) Listings
11NT1-1A
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
1NT1-1-NH-ALT
1NT1-1P
1NT1-2
1NT1-21
1NT1-21-JLG
1NT1-21-NH-ALT
1NT1-2-C
1NT1-2D
1NT1-2F
1NT1-2G
1NT1-2-NH-ALT
1NT1-3
1NT1-31
1NT1-3-C
1NT1-3D
1NT1-3F
1NT1-3-JLG
1NT1-3-NH
1NT1-3-NH-ALT
1NT1-3-TM
1NT1-4
1NT1-5
1NT1-51
1NT1-5-C
1NT1-5N
1NT1-5-TM
1NT1-6
1NT1-61
1NT1-61-JLG
1NT1-6F
1NT1-6-NH-ALT
1NT1-6-TM
1NT1-7
1NT1-7-C
1NT1-7-COMB
1NT1-7E
1NT1-7-JLG
1NT1-7-NH
1NT1-7-NH-ALT
1NT1-7-SKY
1NT1-7-TM
1NT1-8
1NT1-8-C
1NT1-8F
1NT1-8-NH
1NT1-8-TM
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
1NT91-3
1NT91-3D
1NT91-5
1NT91-5E
1NT91-6
1NT91-61
1NT91-7
2NT101-7
2NT1-1
2NT1-10
2NT1-10A
2NT1-10J
2NT1-12
2NT1-12-NH-ALT
2NT1-1A
2NT1-1-C
2NT1-1E
2NT1-1-JLG
2NT1-1L
2NT1-1N
2NT1-1-NH
2NT1-1-NH-ALT
2NT1-2
2NT1-21
2NT1-21-JLG
2NT1-2-C
2NT1-2G
2NT1-3
2NT1-31
2NT1-3-C
2NT1-3D
2NT1-3-JLG
2NT1-3-NH
2NT1-3-NH-ALT
2NT1-4
2NT1-5
2NT1-50
2NT1-50F
2NT1-50-NH-ALT
2NT1-51
2NT1-5M
2NT1-5N
2NT1-5-TM
2NT1-6
2NT1-61
2NT1-61-JLG
2NT1-6-NH-ALT
2NT1-7
2NT1-70
2NT1-70-C
2NT1-70-TM
2NT1-72
2NT1-7-COMB
2NT1-7E
2NT1-7-JLG
2NT1-7-NH
2NT1-7-NH-ALT
2NT1-8
2NT1-8-C
2NT1-8-COMB
2NT1-8-NH
2NT1-8-NH-ALT
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
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
61NT887-7-NH
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
005421-3-EN IL50 GLO
November 2012
Copyright © 2012 Honeywell International Inc. All rights reserved.
MICRO SWITCH™ NT Series Step-Base Toggle Switch
Sensing and Control
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422 USA
sensing.honeywell.com
Find out more
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through a worldwide network of
salesofces,representatives
anddistributors.Forapplication
assistance,currentspecica-
tions, pricing or name of the
nearestAuthorizedDistributor,
contactyourlocalsalesofce.
To learn more about Honeywell’s
sensing and control products,
call +1-815-235-6847/
1-800-537-6945, visit
sensing.honeywell.com,
or e-mail inquiries to
info.sc@honeywell.com
Warranty. 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ofcefor
specic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nds
defective. The foregoing is buyer’s sole remedy and is in lieu
of all warranties, expressed or implied, including those of
merchantability and tness for a particular purpose. In no
event shall Honeywell be liable for consequential, special, or
indirect damages.
While we provide application assistance personally, through our
literature and the Honeywell web site, it is up to the customer to
determine the suitability of the product in the application.
Specications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.
WARNING
MISUSE OF DOCUMENTATION
•Theinformationpresentedinthisdatasheetisfor
referenceonly.DONOTUSEthisdocumentasproduct
installation information.
•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.
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.