MICRO SWITCH Environmentally Sealed Limit Switches 003125 EN Series 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 DESCRIPTION for reliably controlling electrical loads from less than 0.5 A low The Honeywell MICRO SWITCH Series of EN limit switches energy/logic level up to 15 A (power duty) are bushing mount designed, manufactured, and qualified to Wide temperature range from -54 C to 125 C -65 F to MIL-PRF-8805 standards. These products provide a durable 257 F for sea level or high altitude military or commercial switch for commercial and military aircraft as well as commercial applications and military ground-based equipment. Other applications Assortment of switch actuators and electrical terminations include off-road equipment where severe environments are Miniature package size 400EN Series and 600EN Series encountered. reduces housing diameter by 30 % for smaller space required The EN Series of switches have proven to deliver consistent and on equipment 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 Precise and reliable position indication of critical applications - Up-lock and down-lock sensing on aircraft and military systems - Landing gear bay doors closed/locked External doors and hatches for commercial and military DIFFERENTIATION aircraft including helicopters MICRO SWITCH EN Series products are highly - Closed and locked indication for passenger entry/exit doors, configurable offering a variety of integral actuators, electrical cargo bay doors, and/or other doors or hatches (refueling circuitries, and electrical terminations 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 SolutionsMICRO SWITCH Environmentally Sealed Limit Switches, EN Series Table 1. Specifications Characteristic Parameter Description Environmentally sealed military qualified limit switch series (MIL-PRF-8805) Housing & bushing material 300 Series stainless steel Contact material Silver alloy, gold plated, gold bifurcated Mechanical endurance 25,000 cycles min. Electrical endurance 25,000 cycles min. rated load Circuitry 1PST (one-pole single throw) to 6PDT (six-pole double throw) reference Figure 2, page 3 Electrical rating Up to 15 A 28 Vdc reference Table 2, page 2 Dielectric strength (initial) 1000 V RMS 500 A max. leakage Insulation resistance (initial) 500 Vdc 1000 Megohms min. Environmental sealing Symbol 4, resilient seal per MIL-PRF-8805 Temperature range (std.) -54 C to 85 C -65 F to 185 F Temperature range (opt.) -54 C to 125 C -65 F to 257 F Shock Symbol M (100 g) per MIL-PRF-8805 Vibration Symbol 1, 10 g peak (10 Hz to 500 Hz) Standards Design conforms to MIL-PRF-8805 Table 2. Electrical Ratings Sea Level 28 Vdc Altitude 50,000 ft Rating Code Inrush Motor Res. Ind. Inrush Motor Res. Ind. A 24 4 4 2 24 4 4 2 B 36 6 10 3 36 6 10 3 C 30 5 15 10 30 5 15 10 D 24 4 5 3 E 1 0.5 1 0.5 F N/A 4 7 4 N/A 4 7 2.5 1 5 A for rotary switches. Application information only. APPLICATION INFORMATION ONLY 2 sensing.honeywell.com