MICRO SWITCH™ Environmentally Sealed Limit Switches
EN Series
003125
Issue 1
Datasheet
FEATURES
• Circuitry options from 1PST (one-pole single throw) circuit to
6PDT (six-pole double throw) circuits for position indication of
different independent circuits or providing redundant circuit
capabilities
• Rugged stainless steel housing and bushing
• All-metal drive train for consistent operating characteristics at
high or low temperatures
• Most EN catalog listings are MIL-PRF-8805 compliant for
stringent military and non-military applications
• MIL-PRF-8805 symbol 4 (resilient) sealing to keep dust, water,
and ice from entering the switch enclosure
• Gold-bifurcated, gold-plated, or silver-alloy switch contacts
for reliably controlling electrical loads from less than 0.5 A [low
energy/logic level] up to 15 A (power duty)
DESCRIPTION
The Honeywell MICRO SWITCH™ Series of EN limit switches
are bushing mount designed, manufactured, and qualified to
MIL-PRF-8805 standards. These products provide a durable
switch for commercial and military aircraft as well as commercial
and military ground-based equipment. Other applications
include off-road equipment where severe environments are
encountered.
• Wide temperature range from -54 °C to 125 °C [-65 °F to
257 °F] for sea level or high altitude military or commercial
applications
• Assortment of switch actuators and electrical terminations
• Miniature package size [400EN Series and 600EN Series]
reduces housing diameter by 30 % for smaller space required
on equipment
The EN Series of switches have proven to deliver consistent and
reliable operation in harsh environments on critical applications
for more than 65 years.
POTENTIAL APPLICATIONS
• Landing gear systems for commercial and military aircraft
including helicopters
VALUE TO CUSTOMERS
- WOW switch (Weight-on-Wheels) for landing gear
- Up-lock and down-lock sensing
• Precise and reliable position indication of critical applications
on aircraft and military systems
- Landing gear bay doors closed/locked
• External doors and hatches for commercial and military
aircraft including helicopters
DIFFERENTIATION
• MICRO SWITCH™ EN Series’ products are highly
configurable; offering a variety of integral actuators, electrical
circuitries, and electrical terminations
- Closed and locked indication for passenger entry/exit doors,
cargo bay doors, and/or other doors or hatches (refueling
door, APU air inlet door)
• Military ground vehicles
- Doors or hatches closed/locked or open
• Off-road construction equipment
- Doors or panels present/closed/open
- Up-stop or down-stop limits
PORTFOLIO
Honeywell offers many Series of MICRO SWITCH™ sealed
switches including the HM Series, SE Series, XE Series,
HS Series, HE Series, and HR Series.
Sensing and Productivity Solutions