MICRO SWITCH
Sealed and High Accuracy
Switch Line Guide
Engineered smarter. Basically better.
Honeywell Sensing
and Control (S&C) offers an impressive collection of
environmentally sealed limit switches and basic switches,
as well as hermetically sealed products. Many of our
environmentall sealed limit switches incorporate the gold
standard of basic switches – the MICRO SWITCH SM/SX Series
– resulting in enhanced accuracy and reliability under most
extreme conditions. The hermetically sealed lineup includes
switches that maintain the contact in a gas-tight seal, while
transmitting force and motion to the mechanism through a
metal diaphragm. And our high-temperature products have
the switching element mounted on a ceramic base with
stainless steel enclosures.
Honeywell S&C’s flexible sealed switch line opens the door to
new, powerful possibilities for your applications.
FEATURES
SEALED LIMIT SWITCHES
EN Series.
Features:
Environment-proof seal per
MIL-PRF-8805, symbol 4 • Qualified
to MIL-PRF-8805 • Rugged stainless
steel housing • Environment seal resists
most severe environments • Different
contact materials (silver and gold) allow
the control of a logic-level load of up to
15 A at 28 Vdc • Top plunger and roller
plunger actuators have an internal ice
scraper ring
Benefits:
Miniature housing
constructions are available with similar
actuator styles to meet the demand for
smaller size and lighter weight without
sacrificing performance or electrical
capacity. Potential applications include
aircraft landing gear and flap/stabilizer
controls, aircraft engine thrust reversers,
space vehicles, and armored personnel
carriers.
to meet sand and dust, explosion,
icing, minimum current, and moisture
resistance requirements • Top plunger
and roller plunger actuators have an
internal ice scraper ring • Variety of
actuators and terminations • Stainless
steel housing
Benefits:
Features true hermetic
sealing (metal-to-metal, glass-to-
metal construction) designed to ensure
maximum sealing effectiveness for long
periods of time regardless of constant
changes in atmospheric pressures and
temperatures. Potential applications
include jet aircraft de-icer controls and
military aircraft wingfold actuators.
SEALED BASIC SWITCHES
SE/XE Series.
Features:
Watertight seal per enclosure
design MIL-PRF-8805, symbol 3
• Military-standard construction with
listings qualified to MIL-PRF-8805 •
Power loading switching capability up
to 7 A • Temperature tolerance up to
105 °C [221 °F] • High temperature
construction for use up to 149 °C [300
°F] • Corrosion resistant aluminum
housing seals precision switch contacts
from contamination • Several auxiliary
actuators and choice of termination
• All 4SE switches are UL recognized,
CSA certified • All 4XE switches are UL
recognized
Benefits:
SE and XE switches are the
smallest environment-sealed switches
offered by Honeywell. Different contact
materials allow the control of a logic-level
resistive load up to 5 A at 28 Vdc for the
SE series, and up to 7 A at 28 Vdc for the
XE Series. Potential applications include
aircraft, ordinance, and moist or dusty
industrial environments.
HR Series.
Features:
Designed to meet the
requirements of MIL-PRF-8805
standards • Designed to meet moisture
resistance, explosion, and salt spray
requirements
• Top plunger actuator has an internal ice
scraper ring • Stainless steel housing
• Operates at low temperatures (-65 °C
[-85 °F])
Benefits:
Combines enhanced sealing
and high temperature capability into one
package. Potential applications include
aircraft engine thrust reversers.
HE Series.
Features:
Similar to the construction of
the EN series, the HE has a higher level
of sealing with the contacts enclosed
in a hermetic chamber • Often meets or
exceeds mechanical and electrical life
as defined in MIL-PRF-8805 • Designed
continued on page 4
MICRO SWITCH Sealed and High Accuracy Switch
Line Guide
Application knowledge.
Industry wisdom.
Honeywell S&C sealed
switches utilize center-pinned
toggles yielding enhanced
strength and repeatability.
Many years of experience
in the most demanding
environments on Earth
validate our design. You’ll find
a wide variety of actuators,
terminations, circuitry
configurations, electrical
ratings, contact materials
and operating characteristics
— for unbeatable flexibility.
Each switch meets military
standards and/or U.S.,
European, and CCC approval
for global use.
These switches are designed
for presence and absence
detection, where physical
contact with an object
is allowed. So they excel
in potential applications
requiring compactness;
lightweight, accurate
repeatability; and extended
life — including aerospace,
agriculture, transportation,
construction, marine and
ordnance, plus command and
control equipment.
Check with Honeywell S&C
for the most comprehensive
sealed switch line. And for
ways to put it all together,
better.
Sealed
Limit Switches
EN Series
stainless steel with environ-
mental seals
sealed to MIL-PRF-8805
resilient, symbol 4 (also
MIL-PRF-8805 QPL listings
available)
-55 °C to 85 °C
[-65 °F to 185 °F]
top plunger, top roller, top
rotary
screw, leadwire, leadwire with
connector, pin receptacle, side
receptacle
SPDT, DPDT
silver, gold
1 A to 15 A (resistive)
HE Series
hermetically sealed stainless
steel
per MIL-PRF-8805, symbol 5
hermetic
-55 °C to 125 °C
[-67 °F to 257 °F]
top plunger, top roller plunger,
nylon button
screw, leadwire, bottom
receptacle
two or four SPDT circuits
silver, gold
1 A, 5 A, 7 A (resistive)
HR Series
hermetically sealed stainless
steel
per MIL-PRF-8805, hermetic
symbol 5
-65 °C to 315 °C
[-85 °F to 600 °F]
top plunger, top roller plunger
screw, leadwire (receptacle
termination available)
SPNO, DPDT
silver, gold
5 A (resistive)
Type
Sealing
Operating
temperature
Actuators/levers
Termination
Circuitry
Contacts
Amp rating
Sealed Basic
Switches
SE/XE Series
anodized aluminum
MIL-PRF-8805, symbol 3,
watertight
-53 °C to 105 °C
[-65 °F to 221 °F]
auxiliary actuators available
solder, quick-connect, leadwire
SPDT
silver, gold, bifurcated gold
0.5 A to 7 A max.
HM Series
stainless steel
per MIL-PRF-8805, symbol 5
hermetic
-65 °C to 121 °C [-85 °F to
250 °F]
hIgh temp available: 500 °F
integral lever; aux. actuators:
leaf, roller leaf, straight, roller
lever
solder, leadwire
SPDT
silver, gold, bifurcated gold
0.5 A to 3 A
HS Series
stainless steel, phenolic
per MIL-PRF-8805, symbol 5
hermetic
-54 °C to 121 °C
[-65 °F to 250 °F]
integral lever
screw, leadwire
SPDT
silver
1 A to 25 A
Housing material
Sealing
Operating
temperature
Actuators/levers
Termination
Circuitry
Contacts
Amp rating
2
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Sealed Toggle
Switches
AT Series
stainless steel toggle
MIL-PRF-8805/26/98
various
standard, locking, tab, special design
15/32 in bushing, 1/4 in bushing, three-
hole, above panel
solder, solder T2, screw, quick-connect,
leadwire, H58
SPDT, DPDT, DPNO, 3PDT, 4PDT, 6PDT,
7PDT, 8PDT, 10PDT
2-position, momentary and maintained
silver, gold
0.01 A to 5 A (resistive)
TS Series
stainless steel, phenolic toggle
–
-54 °C to 71 °C [-65 °F to 160 °F]
standard
15/32 in bushing
solder, screw, quick-connect
SPST, SPDT, DPST, DPDT
2-3 position, momentary and maintained
silver cadmium oxide
up to 15 A
TW Series
miniature stainless steel toggle
qualified to MIL-DTL-83781
-65 °C to 71 °C [-85 °F to 160 °F]
standard, locking, special design, tab
bushing 15/32 in or 1/4 in
IWTS, solder, screw, quick-connect,
H58, T2
SPST, SPDT, DPST, DPDT
2-3 position, momentary and maintained
silver alloy, gold-plated
0.1 A to 5.0 A at 0.5 Vdc to 28 Vdc,0.1 A
to 5.0 A at 0.5 Vac to 115 Vac
Type
Sealing
Operating temperature
Actuator/lever
Mounting
Termination
Circuitry
Contacts
Amp rating
Sealed Toggle
Switches
ET Series
magnetically held toggle
most listings qualified to MIL-S-5594
-65 °C to 71 °C [-85 °F to 160 °F]
standard, pull-to-unlock, push-to-unlock,
tab
bushing 15/32 in
screw, leadwire, turret
SPDT, DPDT, 4PDT
2-3 position, momentary and maintained
silver alloy, gold-plated
7 A max. (resistive)
NT Series
industrial-grade toggle
IP67/67; NEMA 3, 3R, 4, 13
-40 °C to 71 °C [-40 °F to 160 °F]
standard, locking, special design, tab
bushing 15/32 in
solder, screw, quick-connect
SPST, SPDT, DPST, DPDT
4PST, 4PDT
2-3 position, momentary and maintained
silver cadmium oxide, gold-plated
TL Series
military-grade toggle
qualified to MIL-DTL-3950
-65 °C to 71 °C [-85 °F to 160 °F]
standard, special design, tab, paddle, no
lever
bushing 15/32 in
IWTS, solder, screw, quick-connect,
leadwire
SPST, SPDT, DPST, DPDT
3PST, 3PDT, 4PST, 4PDT
2-3 position, momentary and maintained
silver alloy, gold-plated
Type
Sealing
Operating temperature
Levers
Mounting
Termination
Circuitry
Contacts
Amp rating
0.5 A at 250 Vdc,0.5 A to 15 A at 0.5 Vac 0.5 A at 250 Vdc,0.75 A at 115 Vdc,0.5 A
to 277 Vac,0.5 A to 20 A at 0.5 Vdc to 28 to 15 A at 0.5 Vac to 277 Vac,0.5 A to 20
Vdc,0.75 A at 115 Vdc
A at 0.5 Vdc to 28 Vdc
Sensing and Internet of Things
3
HM Series.
Features:
Hermetically sealed per
MIL-PRF-8805, design symbol 5 •
MIL-PFR-8805 qualified listing • Broad
temperature range of -65 °C to 121 °C
[-85 °F to 250 °F] • High temperature
construction, -65 °C to 260 °C [-85 °F to
500 °F] • Reduced sensitivity to changes
in altitude or pressure • Compact size,
light weight • Choice of actuation and
termination
Benefits:
Some special versions operate
as high as 400 °C [752 °F]or as low as
-184 °C [-299 °F]. Different contact
materials (gold and silver) allow the
control of a logic-level resistive load
up to 4 A at 28 Vdc. Contains contacts
in a sealed chamber. Gas-tight seal is
maintained while transmitting force
and motion to the switch mechanism
through a metal diaphragm. Not
recommended for 115 Vac, 60 Hz.
Potential applications include adverse
gas or vapor environments, oil drilling
installations, marine environments,
submarines and stationary undersea
equipment, refrigeration units, aircraft
and spacecraft, earth moving machinery,
desert vehicles, and cement mills.
SEALED TOGGLE SWITCHES
AT Series.
Features:
Gold or silver contacts
• Choice of sealed bushing • Standard
or pull-to-unlock toggle lever • Short
behind-panel depth • Solder or quick-
connect termination • 2,4, 6, or 8
SPDT precision basic switches • 2- or
3-position, momentary and maintained
action
Benefits:
Precision switch conserves
space and weight. Pull-to-unlock lever
prevents accidental operation: the lever
must be pulled approximately 2,3 mm
[0.09 inches] to change the positions.
Hermetic basic switches are available.
Potential applications include industrial
machinery and equipment, military
and commercial aviation, construction
equipment, test instruments, agricultural
machinery, process control, and medical
instrumentation.
Benefits:
Low profile switches and
generally used where space behind the
panel is limited. Used in control panel
or equipment operation applications
where a panel-mount switch with an
environment-proof sealing rating
is needed. Potential applications
include industrial machinery and
equipment, military and commercial
aviation, construction equipment, test
instruments, agricultural machinery,
process control, and medical
instrumentation.
ET Series.
Features:
Most listings qualified to
MIL-S-5594 • Environment-proof sealing
• Holding coil replaces mechanical
holding mechanisms to maintain toggle
in operate position • 2- and 3-position
maintained and momentary toggle
action • SPDT and DPDT circuitry
Benefits:
With an open circuit,
the ET functions as a momentary
contact switch. Potential applications
include industrial machinery and
equipment, military and commercial
aviation, construction equipment, test
instruments, agricultural machinery,
process control, and medical
instrumentation.
TS Series.
Features:
2- or 3-position, momentary
and maintained action • 1- and 2-pole
circuitry • Solder, screw, or quick-connect
terminals • Rated up to 20 A • Lever-to-
bushing seal
Benefits:
Generally used in low-
cost commercial applications. Not
recommended for use where sealing
is critical. Potential applications
include industrial machinery and
equipment, military and commercial
aviation, construction equipment, test
instruments, agricultural machinery,
process control, and medical
instrumentation.
HS Series.
Features:
Hermetically sealed per MIL-
PRF-8805, design symbol 5 • Power load
switching capability to 25 A at 28 Vdc •
Broad temperature range -55 °C to 125
°C [-67 °F to 250 °F] • High temperature
construction, 149 °C [300 °F] • Reduced
sensitivity to changes in altitude or
pressure • Choice of actuation
Benefits:
HS Series is a larger version of
the HM Series. Allows control of a logic-
level resistive load up to 25 A at 28 Vdc.
Potential applications include adverse
gas or vapor environments, aircraft and
helicopters, steam cleaning of food
processing machines, moist, dusty, or
oily environments, and industrial valve
controls.
NT Series.
Features:
Completely sealed switching
chamber • IP67/IP68 • NEMA 3, 3R,
4, and 13 • Step-design case provides
added space between terminals to
prevent shorting • 2- and 3-position,
maintained and momentary toggle
action • Spring-loaded mechanism
provides excellent tactile feedback
• Features an “easy-start” threaded
bushing and thermplastic case • High
impact strength, non-tracking case
enhances electrical stability
Benefits:
Meets a variety of electrical
load requirements. Switching chamber
is completely sealed in a Thermoset
case. Used in a wide variety of industrial
and commercial settings. Potential
applications include aerial lifts, scissor
lifts, truck mounted tele-handlers/
cranes, construction equipment,
TW Series.
Features:
Qualified to MIL-DTL-83731
• IWTS (Integrated Wire Termination
System) • Saves space and weight • SPDT
and DPDT circuitry • Temperature range:
-65 °C to 71 °C [-85 °F to 160 °F] • Silver
alloy or gold-plated contacts • Sealed
bushing versions • Choice of 1/4 in or
15/32 in bushing • Color tab available on
15/32 in bushing
4
sensing.honeywell.com
agriculture equipment, material-handling
equipment, factory-floor control
units, and machine tool equipment
manufacturers.
TL Series.
Features:
Environment-proof sealing •
Qualified to MIL-DTL-3950 • 1-,2-, and
4-pole circuitry • Standard and pull-to-
unlock levers • Silver alloy or gold-plated
contacts • 2- and 3-position, maintained
and momentary toggle action •
Temperature range: -65 °C to 71 °C
[-85 °F to 160 °F] • Completely sealed
switching chamber • Step-design case
provides added space between terminals
to help prevent shorting • Available
with IWTS (Integrated Wire Termination
System), a wired, plug-in connection
method
Benefits:
Meets a variety of electrical
load requirements. Switching chamber
is completely sealed in a Thermoset
case. Used in any military or commercial
aviation application where a sealed
toggle switch is required. Potential
applications include industrial
machinery and equipment, military
and commercial aviation, construction
equipment, test instruments, agricultural
machinery, process control, and medical
instrumentation.
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 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 customer’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 printing. However, Honeywell
assumes no responsibility for its use.
For more information about our prod-
ucts, visit www.honeywell.com/sensing or
call +1-815-235-6847, Email inquiries to
info.sc@honeywell.com
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
catalogue 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.
Honeywell Sensing and Internet of Things
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Fort Mill, SC 29707
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