MICRO SWITCH™ NT Series
Step Base Toggle Switch
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
•
•
•
•
•
•
•
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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 certified, CE certified
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
MICRO SWITCH™ NT Series
SPECIFICATIONS
Characteristic
Description
Sealing
Operating temperature
Actuators
Action
Mounting
Circuitry
Terminations
Contacts
Amp rating
Approvals
Measurement
Parameter
Industrial-grade toggle switch
IP67/IP68; NEMA 3, 3R, 4, and 13
-40 °C to 71 °C [-40 °F to 160 °F]
Standard, locking, special design, tab
2- or 3- position; momentary and maintained
Bushing 15/32 in
SPST, SPDT, DPST, DPDT, 4PST, 4PDT
Solder, screw, quick connect
Silver alloy
Up to 20 A (resistive)
UL, CSA, CE
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]
UL AND CSA ELECTRICAL RATINGS
Rating Code
L192
L191
Electrical rating
10 amps, 125, 250, 277 Vac; ¼ Hp, 125 Vac; ½ Hp, 250, 277 Vac; 3 amps, 125 Vac “L”
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
Ind.
1
2
3
4
12
10
15
10
28 Vdc
Res.
20
15
20
18
115 Vdc
Lamp
5
4
7
5
250 Vdc
Res.
0.5
0.5
0.5
0.5
115 Vac,
60 Hz & 400 Hz
Ind.
10
7
15
8
230 Vac
Res
6
6
6
6
Res.
0.75
0.75
0.75
0.75
Res.
15
15
15
11
Lamp
3
2
4
2
2 Honeywell • Sensing and Control
Step-Base Toggle Switch
STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Single pole NT switches shown
Description
Standard Lever,
QC Terminals
Top
Front
Bottom
Locking Lever, QC
Terminals
Standard Lever,
Solder Terminals
Honeywell • Sensing and Control 3
MICRO SWITCH™ NT Series
STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Single pole NT switches shown
Description
Locking Lever,
Solder Terminals
Top
Front
Bottom
Standard Lever,
Screw Terminals
Locking Lever,
Screw Terminals
4 Honeywell • Sensing and Control
Step-Base Toggle Switch
STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Single pole NT switches shown
Description
Standard Lever
Panel Stand-off
Feature
Screw Terminals
Top
Front
Bottom
Honeywell • Sensing and Control 5
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