Honeywell Sensing Micro Switch Sealed Switch Line Guide0 pages

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.

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
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.

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.

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.

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