NT
SERIES
005429
Issue 6
MICRO SWITCH Commercial-Grade Toggle Switches
DESCRIPTION
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 subjected 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 glovedhand operation.
Available in both step-base and flat-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.
FEATURES
DIFFERENTIATION
• Sealed to NEMA 3, 3R, 4, 13 and
IP67/IP68 for global use
• 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, UKCA and
CE certified for global use
• Spring-loaded actuating mechanism
provides excellent tactile feedback
• Optional flat base case design
with a quick connect terminal
pattern mates to a
commercial-type connector for
plug-and-play connectivity
• 2- and 3-position, maintained and
momentary toggle action
• Delivers high performance in a
wide range of temperatures: -40°C to
71°C [-40°F to 160°F]
• Choice of silver alloy or gold-plated
contacts
• Optional engineered step-design
case provides added space between
terminals to prevent shorting
• Optional panel stand-off with O-ring
panel seal eliminates behind-thepanel hardware
• NEMA 3, 3R, 4, 13 and IP67/68
environmental sealing for demanding
applications
• UL recognized, CSA certified, UKCA
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
APPLICATIONS
• Aerial platform lifts
• Platform lifts for trucks
• Industrial equipment
• Railroad locomotives and
maintenance equipment
• Construction equipment
• Agricultural machinery
• Syringes (end of travel)
PORTFOLIO
The MICRO SWITCH NT joins
Honeywell’s Toggle Switch
Series offering a variety
of electrical, position and
load choices, with options for MIL
qualifications, momentary and/or
maintained action and poles. To view
the entire product portfolio, click here.
MICRO SWITCH COMMERCIAL-GRADE TOGGLE SWITCHES
NT SERIES
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, UKCA
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; 1/4 Hp, 125 Vac; 1/2 Hp, 250, 277 Vac; 3 amps, 125 Vac “L”
L192
15 amps, 125, 250, 277 Vac; 1/2 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.
1
12
20
5
0.75
0.5
10
15
3
6
2
10
15
4
0.75
0.5
7
15
2
6
3
15
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
6
10
18
4
0.75
0.5
8
11
2
6
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 2
MICRO SWITCH COMMERCIAL-GRADE TOGGLE SWITCHES
NT SERIES
TERMINAL CIRCUIT IDENTIFICATION
SPECIAL CIRCUITRIES
Terminal identifications are referred to in the order guides
to indicate which circuits are made in each toggle position
(i.e., 1-2 refers to circuit closure through terminals 1 and 2).
Catalog listings with -10, -50 and -70 suffix numbers,
as shown in the order guides, have special “on-on-on”
circuits, as illustrated below. NTs with -12 suffix are the
same as -50 except the keyway position is maintained
NOTE: Keyside is on #3 terminal side.
Step Base - One Pole
and the center position circuits 2-3 and 4-5 are made.
-10 CIRCUITRY
NO OF
POLES
Step Base - Two Pole
2
4
KEYWAY SIDE
MAINT.
POSITION
CENTER
MAINT.
POSITION
OPPOSITE
KEYWAY
MAINT.
POSITION
3
2
1
3
2
1
3
2
1
6
5
4
6
5
4
6
5
4
3
2
1
3
2
1
3
2
1
6
5
4
6
5
4
6
5
4
9
8
7
9
8
7
9
8
7
10
12
11
10
12
11
10
12
11
Step Base - Four Pole
-50 CIRCUITRY
NO OF
POLES
2
Flat Base - One Pole
4
KEYWAY SIDE
MAINT.
POSITION
CENTER
MAINT.
POSITION
OPPOSITE
KEYWAY
MAINT.
POSITION
3
2
1
3
2
1
3
2
1
6
5
4
6
5
4
6
5
4
3
2
1
3
2
1
3
2
1
6
5
4
6
5
4
6
5
4
9
8
7
9
8
7
9
8
7
12
11
10
12
11
10
12
11
10
-70 CIRCUITRY
NO OF
POLES
Flat Base - Two Pole
2
4
KEYWAY SIDE
MAINT.
POSITION
CENTER
MAINT.
POSITION
OPPOSITE
KEYWAY
MAINT.
POSITION
3
2
1
3
2
1
3
2
1
6
5
4
6
5
4
6
5
4
3
2
1
3
2
1
3
2
1
6
5
4
6
5
4
6
5
4
9
8
7
9
8
7
9
8
7
12
11
10
12
11
10
12
11
10
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 3
MICRO SWITCH SUBMINIATURE BASIC SWITCHES
ZX SERIES
TABLE 4. NT (STEP BASE) 2-POSITION ORDER GUIDE
CIRCUITS MADE WITH TOGGLE AT:
CATALOG LISTING (STANDARD LEVER)
NO. OF POLES
KEYWAY POSITION
OPPOSITE KEYWAY
UL RATING CODE
ELECT. RATING CODE
SCREW
SOLDER
QUICK CONNECT
PULL-TO-UNLOCK LEVER
(ADD SUFFIX TO STANDARD LEVER LISTING)**
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
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
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
2
4
* These positions are momentary. All others are maintained.
** See page 17 for locking configurations.
TABLE 5. 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
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
SCREW TERMINALS
2
* These positions are momentary. All others are maintained.
TABLE 6. 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
1
1-2
OFF
2-3
L191
1
61NT1-1
1-2*
OFF
2-3*
L192
2
61NT1-7
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
2
*These positions are momentary. All others are maintained.
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 4
MICRO SWITCH SUBMINIATURE BASIC SWITCHES
ZX SERIES
TABLE 7. NT (STEP BASE) 3-POSITION ORDER GUIDE
CIRCUITS MADE WITH TOGGLE AT:
CATALOG LISTING (STANDARD LEVER)
NO. OF POLES
KEYWAY POSITION
CENTER KEYWAY
OPPOSITE KEYWAY
UL RATING CODE
ELECT. RATING CODE
SCREW
SOLDER
QUICK CONNECT
PULL-TO-UNLOCK LEVER
(ADD SUFFIX TO STANDARD LEVER LISTING)***
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
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
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
2
4
* 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 configurations.
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 5
MICRO SWITCH COMMERCIAL-GRADE TOGGLE SWITCHES
NT SERIES
TABLE 8. NT (FLAT BASE) 2-POSITION ORDER GUIDE
CATALOG LISTING
(STANDARD LEVER)
CIRCUITS MADE WITH TOGGLE AT:
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
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
2
** These positions are momentary. All others are maintained.
TABLE 9. NT (FLAT BASE) 2-POSITION ORDER GUIDE • PANEL STAND-OFF FEATURE
CATALOG LISTING
(STANDARD LEVER)
CIRCUITS MADE WITH TOGGLE AT:
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
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
2
** These positions are momentary. All others are maintained.
TABLE 10. NT (FLAT BASE) Z-POSITION ORDER GUIDE • PANEL STAND-OFF FEATURE
NO. OF POLES
KEYWAY POSITION
19PA168-NT
2-pole connector
19PA169-NT
1-pole connector, same package size as 2-pole connector
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 6
MICRO SWITCH COMMERCIAL-GRADE TOGGLE SWITCHES
NT SERIES
TABLE 11. NT (FLAT BASE) 3-POSITION ORDER GUIDE
CATALOG
LISTING
(STANDARD
LEVER)
CIRCUITS MADE WITH TOGGLE AT:
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
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
2
** 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.
TABLE 12. NT (FLAT BASE) 3-POSITION ORDER GUIDE • PANEL STAND-OFF FEATURE
CATALOG
LISTING
(STANDARD
LEVER)
CIRCUITS MADE WITH TOGGLE AT:
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
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
2
** These positions are momentary. All others are maintained.
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 7
MICRO SWITCH COMMERCIAL-GRADE TOGGLE SWITCHES
NT SERIES
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
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
11NT1: SINGLE POLE,
STANDARD LEVER,
SOLDER TERMINALS
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
10,9 mm
[0.43 in]
10,9 mm
[0.43 in]
31° ±7° total travel
31° ±7° total travel
15° 30’ ±3° 30’
Ø 6,09 mm [Ø 0.24 in]
15° 30’ ±3° 30’
31° ±7° total travel
15° 30’ ±3° 30’
Ø 6,09 mm [Ø 0.24 in]
Ø 6,09 mm [Ø 0.24 in]
17,0 mm [0.67 in]
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]
29,5 mm
[1.16 in]
11,9 mm
[0.47 in]
15/32 - 32 UNS 2A thread
to within 1,52 mm
[0.060 in] of shoulder
6,1 mm [0.24 in]
23,1 mm
[0.91 in]
Sealed to prevent
entrance of
liquids or dust
23,1 mm
[0.91 in]
Sealed to prevent entrance
of liquids or dust
41,99 mm ±0,76 mm
[1.653 in ±0.030 in]
11,9 mm
[0.47 in]
29,5 mm
[1.16 in]
15/32 - 32 UNS 2A thread
to within 1,52 mm [0.060 in]
of shoulder
6,1 mm [0.24 in]
Sealed to prevent entrance
of liquids or dust
23,1 mm
[0.91 in]
3X 0.250 in QC terminal
10,9 mm
[0.43 in]
3X 8,51 mm ±0,38 mm
[3X 0.335 in ±0.015 in]
3X Ø 5,33 mm ±0,64 mm
[3X Ø 0.210 in ±0.025 in]
28,4 mm
[1.12 in]
28,4 mm
[1.12 in]
4,8 mm
[0.19 in]
6,1 mm [0.24 in]
17,0 mm [0.67 in]
4,8 mm
[0.19 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
3X 6-32 UNC-2A X (0.260)
binding head terminal
screw and lockwasher
(sems)
15,7 mm [0.62 in]
28,4 mm
[1.12 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
4,8 mm
[0.19 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
15,7 mm [0.62 in]
15,7 mm [0.62 in]
LOCKING LEVER DIMENSIONS FOR
SINGLE POLE NT TOGGLES
31° ±7°
total travel
15° ±3°
Ø 10,67 mm
[Ø 0.42 in]
2,28 mm
[0.090 in]
26,67 mm approx. pullout
[1.05 in] to change
position
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 8
MICRO SWITCH COMMERCIAL-GRADE TOGGLE SWITCHES
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
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
12NT1: DOUBLE POLE,
STANDARD LEVER,
SOLDER TERMINALS
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
10,9 mm
[0.43 in]
10,9 mm
[0.43 in]
34° ±8° total travel
34° ±8° total travel
34° ±8° total travel
17,0 mm [0.67 in]
17° ±4°
34,29 mm
[1.35 in]
27,94 mm
[1.10 in]
Ø 6,09 mm [Ø 0.24 in]
17,0 mm [0.67 in]
17,0 mm [0.67 in]
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
3,3 mm min.
[0.130 in min.]
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
11,9 mm
[0.47 in] 6,1 mm [0.24 in]
27,94 mm
[1.10 in]
Sealed to prevent
entrance of
liquids or dust
6X 0.250 in wide
QC terminal
41,99 mm ±0,76 mm
11,18 mm
[1.653 in ±0.030 in]
[0.44 in]
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
6,1 mm [0.24 in]
2X 39,24 mm ±0,76 mm
[2X 1.545 in ±0.030 in]
Sealed to prevent
entrance of
liquids or dust
3,3 mm min.
[0.130 in min.]
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]
33,53 mm
[1.32 in]
9,7 mm
[0.38 in]
6,6 mm
[0.26 in]
7,1 mm
[0.28 in]
19,05 mm
[0.75 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
6X 6-32
UNC-2A x (0.260)
binding head terminal
screw and lockwsher
(sems)
9,7 mm
[0.38 in]
7,1 mm
[0.28 in]
33,53 mm
[1.32 in]
33,53 mm
[1.32 in]
7,1 mm
[0.28 in]
11,9 mm
[0.47 in]
27,94 mm
[1.10 in]
Sealed to prevent
entrance of
liquids or dust
3,3 mm min.
[0.130 in min.]
3,3 mm min.
[0.130 in min.]
22,6 mm
[0.89 in]
Ø 6,09 mm [Ø 0.24 in]
Ø 6,09 mm [Ø 0.24 in]
11,9 mm
[0.47 in] 6,1 mm [0.24 in]
17° ±4°
17° ±4°
22,6 mm 9,7 mm
[0.89 in] [0.38 in]
6,6 mm
[0.26 in]
19,05 mm
[0.75 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]
LOCKING LEVER DIMENSIONS FOR
DOUBLE POLE NT TOGGLES
34° ±8°
total travel
17° ±4°
Ø 10,67 mm
[Ø 0.42 in]
2,28 mm
[0.090 in]
26,67 mm approx. pullout
[1.05 in] to change
position
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 9
MICRO SWITCH COMMERCIAL-GRADE TOGGLE SWITCHES
NT SERIES
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
10,9 mm
[0.43 in]
1,93 mm ±0,20 mm
wide keyway
[0.076 in ±0.008
wide keyway]
1,93 mm ±0,20 mm
wide keyway
[0.076 in ±0.008
wide keyway]
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]
10,9 mm
[0.43 in]
10,9 mm
[0.43 in]
34° ±8° total travel
17° ±4°
34° ±8° total travel
34° ±8° total travel
17° ±4°
3,05 mm
[0.12 in]
11,9 mm
[0.47 in]
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
6,1 mm [0.24 in]
Sealed to prevent
entrance of
liquids or dust
27,94 mm
[1.10 in] 3,3 mm min.
[0.130 in min.]
34,29 mm
[1.35 in]
6,4 mm [0.25 in]
3,3 mm min. [0.130 in min.]
33,53 mm
[1.32 in]
7,1 mm [0.28 in]
11,9 mm
[0.47 in]
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
6,1 mm [0.24 in]
Sealed to prevent
entrance of
liquids or dust
3,3 mm min.
[0.130 in min.]
41,99 mm ±0,76 mm
[1.653 in ±0.030 in]
3,05 mm [0.12 in]
17,27 mm
[0.68 in]
11,9 mm
[0.47 in]
12X 0.25 in wide
quick connect
terminal
11,2 mm
[0.44 in]
6,1 mm [0.24 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]
33,53 mm
[1.32 in]
7,1 mm [0.28 in]
19,05 mm
[0.75 in]
6,6 mm
[0.26 in]
6,6 mm
[0.26 in]
41,66 mm
[1.64 in]
6,6 mm
[0.26 in]
9,4 mm
[0.37 in]
41,66 mm
[1.64 in]
9,4 mm
[0.37 in]
9,4 mm
[0.37 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
9,7 mm
[0.38 in]
19,05 mm
[0.75 in]
Sealed to prevent
entrance of
liquids or dust
3,3 mm min.
[0.130 in min.]
4X 39,24 mm ±0,76 mm
[4X 1.545 in ±0.030 in]
33,53 mm
[1.32 in]
7,1 mm [0.28 in]
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
27,94 mm
[1.10 in]
27,94 mm
[1.10 in]
12X 6-32 UNC-2 X
(0.260) binding head
terminal screw and
lockwasher (sems)
9,7 mm
[0.38 in]
9,4 mm
[0.37 in]
9,4 mm
[0.37 in]
9,4 mm
[0.37 in]
9,4 mm
[0.37 in]
41,66 mm
[1.64 in]
Ø 6,09 mm [Ø 0.24 in]
3,05 mm
[0.12 in]
17,27 mm
[0.68 in]
Ø 6,09 mm [Ø 0.24 in]
17,01 mm
[0.67 in]
Ø 6,09 mm [Ø 0.24 in]
17° ±4°
9,4 mm
[0.37 in]
9,4 mm
[0.37 in]
LOCKING LEVER DIMENSIONS FOR
FOUR-POLE NT TOGGLES
34° ±8°
total travel
17° ±4°
Ø 10,67 mm
[Ø 0.42 in]
2,28 mm
[0.090 in]
26,67 mm approx. pullout
[1.05 in] to change
position
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 10
MICRO SWITCH COMMERCIAL-GRADE TOGGLE SWITCHES
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
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
10,9 mm
[0.43 in]
34° ±8° total travel
31° ±7° total travel
17° ±4°
Ø 6,09 mm [Ø 0.24 in]
15° 30’ ±3° 30’
Ø 6,09 mm [Ø 0.24 in]
17,0 mm [0.67 in]
12,45 mm
[0.49 in]
29,5 mm
[1.16 in]
Panel seal
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
7,4 mm
[0.29 in]
23,1 mm
[0.91 in]
Sealed to prevent
entrance of
liquids or dust
Panel seal
17,0 mm [0.67 in]
12,45 mm
[0.49 in]
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
7,4 mm
[0.29 in]
Sealed to prevent
entrance of
liquids or dust
27,94 mm 3,3 mm min.
[1.10 in] [0.130 in min.]
34,29 mm
[1.35 in]
3,3 mm min.
[0.130 in min.]
33,53 mm
[1.32 in]
7,1 mm
[0.28 in]
28,4 mm
[1.12 in]
4,8 mm
[0.19 in]
15,7 mm [0.62 in]
6,6 mm
[0.26 in]
19,05 mm
[0.75 in]
9,7 mm
[0.38 in]
22,6 mm
[0.89 in]
3X 6-32 UNC-2A
X (0.260) binding
head terminal
screw and
lockwasher
(sems)
9,7 mm
[0.38 in]
9,7 mm
[0.38 in]
19,05 mm
[0.75 in]
6X 6-32
UNC-2A x (0.260)
binding head terminal
screw and lockwsher
(sems)
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 11
MICRO SWITCH COMMERCIAL-GRADE TOGGLE SWITCHES
NT SERIES
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
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
10,9 mm
[0.43 in]
31° ±7° total travel
31° ±7° total travel
15° 30’ ±3° 30’
15° 30’ ±3° 30’
Ø 6,09 mm [Ø 0.24 in]
Ø 6,09 mm [Ø 0.24 in]
Panel seal
17,0 mm [0.67 in]
17,0 mm [0.67 in]
11,9 mm
[0.47 in]
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
6,1 mm
[0.24 in]
Sealed to prevent
entrance of
liquids or dust
24,13 mm
[0.95 in]
34,8 mm ±0,76 mm
[1.37 in ±0.030 in]
12,45 mm
[0.49 in]
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
7,4 mm
[0.29 in]
Sealed to prevent
entrance of
liquids or dust
24,13 mm
[0.95 in]
34,8 mm ±0,76 mm
[1.37 in ±0.030 in]
3X 0.250 in
QC terminal
3X 0.250 in QC terminal
28,4 mm
[1.12 in]
28,4 mm
[1.12 in]
19,05 mm
[0.75 in]
4,8 mm
[0.19 in]
19,05 mm
[0.75 in]
4,8 mm
[0.19 in]
9,7 mm
[0.38 in]
9,7 mm
[0.38 in]
15,7 mm [0.62 in]
15,7 mm [0.62 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]
1,93 mm ±0,20 mm wide keyway
[0.076 in ±0.008 wide keyway]
10,9 mm
[0.43 in]
10,9 mm
[0.43 in]
34° ±8° total travel
34° ±8° total travel
17° ±4°
17° ±4°
Ø 6,09 mm [Ø 0.24 in]
Ø 6,09 mm [Ø 0.24 in]
17,0 mm [0.67 in]
17,0 mm [0.67 in]
11,9 mm
[0.47 in]
15/32 - 32 UNS 2A
thread to within
1,52 mm [0.060 in]
of shoulder
6,1 mm [0.24 in]
25,15 mm
[0.99 in]
36,12 mm ±0,76 mm
[1.422 in ±0.030 in]
Sealed to prevent
entrance of
liquids or dust
12,4 mm
[0.49 in]
Panel seal
15/32 - 32 UNS 2A
thread to within
0.060 in of shoulder
7,4 mm [0.29 in]
Sealed to prevent
entrance of
liquids or dust
36,12 mm ±0,76 mm
[1.422 in ±0.030 in]
6X 0.250 in wide
QC terminal
6X 0.250 in wide
QC terminal
33,53 mm
[1.32 in]
33,53 mm
[1.32 in]
7,1 mm
[0.28 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 9,7 mm
[0.38 in]
[0.89 in]
19,05 mm
[0.75 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]
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 12
MICRO SWITCH COMMERCIAL-GRADE TOGGLE SWITCHES
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
MICRO SWITCH NT Commercial-Grade Toggle Switches Datasheet | sps.honeywell.com/ast | 13
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture
as being free of defective materials and
faulty workmanship during the applicable
warranty period. Honeywell’s standard product
warranty applies unless agreed to otherwise by
Honeywell in writing; please refer to your order
acknowledgment 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 that Honeywell, in its sole discretion,
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 particular
purpose. In no event shall Honeywell be
liable for consequential, special, or indirect
damages.
While Honeywell may provide application
assistance personally, through our literature
and the Honeywell web site, it is buyer’s sole
responsibility 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 writing.
However, Honeywell assumes no responsibility
for its use.
FOR MORE INFORMATION
Honeywell Advanced Sensing
Technologies services its customers
through a worldwide network of sales
offices and distributors. For application
assistance, current specifications, pricing
or the nearest Authorized Distributor,
visit our website or call:
USA/Canada +1 302 613 4491
Latin America
+1 305 805 8188
Europe
+44 1344 238258
Japan
+81 (0) 3-6730-7152
Singapore
+65 6355 2828
Greater China
+86 4006396841
Honeywell
Advanced Sensing Technologies
830 East Arapaho Road
Richardson, TX 75081
sps.honeywell.com/ast
005429-6-EN | 6 | 03/22
© 2022 Honeywell International Inc. All rights reserved.
• 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.
