Sealed Switches      



image

Honeywell switches yield 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.





SEALED LIMIT SWITCHES:


    EN Series 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.

  1. EN Series - Features:
    1. Environment-proof seal per MIL-PRF-8805, symbol 4,
    2. Qualified to MIL-PRF-8805, Rugged stainless steel housing,
    3. Environment seal resists most severe environments,
    4. Different contact materials (silver and gold) allow the control of a logic-level load of up to 15 A at 28 Vdc,
    5. Top plunger and roller plunger actuators have an internal ice scraper ring.




  2. HE Series 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.

  3. LE & LP Series - Features:
    1. Similar to the construction of the EN series,
    2. The HE has a higher level of sealing with the contacts enclosed in a hermetic chamber,
    3. Often meets or exceeds mechanical and electrical life as defined in MIL-PRF-8805,
    4. Designed to meet sand and dust, explosion, icing, continued on page 4 minimum current, and moisture resistance requirements,
    5. Top plunger and roller plunger actuators have an internal ice scraper ring,
    6. Variety of actuators and terminations, Stainless steel housing.




  4. HR Series:


    Combines enhanced sealing and high temperature capability into one package. Potential applications include aircraft engine thrust reversers.

  5. HR Series - Features:
    1. Designed to meet the requirements of MIL-PRF-8805 standards,
    2. Designed to meet moisture resistance, explosion, and salt spray requirements,
    3. Top plunger actuator has an internal ice scraper ring, Stainless steel housing,
    4. Operates at low temperatures (-65 °C [-85 °F]).




  6. 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 Switches Line Guide:



image image image

Sealed Limit Switches EN Series HE Series HR Series
Type stainless steel with environmental seals hermetically sealed stainless steel hermetically sealed stainless steel
Sealing sealed to MIL-PRF-8805 symbol 4 hermetic (also MIL-PRF-8805 QPL listings available) per MIL-PRF-8805, symbol 5 hermetic per MIL-PRF-8805, hermetic symbol 5
Operating temperature -55 °C to 85 °C [-65 °F to 185 °F] -55 °C to 125 °C [-67 °F to 257 °F] -65 °C to 315 °C [-85 °F to 600 °F]
Actuators/levers top plunger, top roller, top rotary top plunger, top roller plunger, nylon button top plunger, top roller plunger
Termination screw, leadwire, leadwire with connector, pin receptacle, side receptacle screw, leadwire, bottom receptacle screw, leadwire (receptacle termination available)
Circuitry SPDT, DPDT two or four SPDT circuits SPNO, DPDT
Contacts silver, gold silver, gold silver, gold
Amp rating 1 A to 15 A (resistive) 1 A, 5 A, 7 A (resistive) 5 A (resistive)





SEALED BASIC SWITCHES:


    SE/XE Series 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.

  1. SE/XE Series - Features:
    1. Watertight seal per enclosure design MIL-PRF-8805, symbol 3,
    2. Military-standard construction with listings qualified to MIL-PRF-8805,
    3. Power loading switching capability up to 7 A, Temperature tolerance up to 105 °C [221 °F],
    4. High temperature construction for use up to 149 °C [300 °F],
    5. Corrosion resistant aluminum housing seals precision switch contacts from contamination,
    6. Several auxiliary actuators and choice of termination, All 4SE switches are UL recognized, CSA certified,
    7. All 4XE switches are UL recognized.




  2. HM Series 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.

  3. HM Series - Features:
    1. Hermetically sealed per MIL-PRF-8805, design symbol 5, MIL-PFR-8805 qualified listing,
    2. Broad temperature range of -65 °C to 121 °C [-85 °F to 250 °F],
    3. High temperature construction, -65 °C to 260 °C [-85 °F to 500 °F],
    4. Reduced sensitivity to changes in altitude or pressure, Compact size, light weight,
    5. Choice of actuation and termination.




  4. HS Series:


    HS Series is a larger version of the HM Series. Allows control of a logiclevel 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.

  5. HS Series - Features:
    1. Hermetically sealed per MILPRF-8805, design symbol 5,
    2. Power load switching capability to 25 A at 28 Vdc,
    3. Broad temperature range -55 °C to 125 °C [-67 °F to 250 °F],
    4. High temperature construction, 149 °C [300 °F],
    5. Reduced sensitivity to changes in altitude or pressure, Choice of actuation.





image image image

Sealed Basic Switches SE/XE Series HM Series HS Series
Housing material anodized aluminum stainless steel stainless steel, phenolic
Sealing MIL-PRF-8805, symbol 3, watertight per MIL-PRF-8805, symbol 5 hermetic per MIL-PRF-8805, symbol 5 hermetic
Operating temperature -53 °C to 105 °C [-65 °F to 221 °F] -65 °C to 121 °C [-85 °F to 250 °F] hIgh temp available: 500 °F -54 °C to 121 °C [-65 °F to 250 °F]
Actuators/levers auxiliary actuators available integral lever; aux. actuators: leaf, roller leaf, straight, roller lever integral lever
Termination solder, quick-connect, leadwire solder, leadwire screw, leadwire
Circuitry SPDT SPDT SPDT
Contacts silver, gold, bifurcated gold silver, gold, bifurcated gold silver
Amp rating 0.5 A to 7 A max 0.5 A to 3 A 1 A to 25 A




    SEALED TOGGLE SWITCHES:


    AT Series:


    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.

  1. AT Series - Features:
    1. Gold or silver contacts, Choice of sealed bushing,
    2. Standard or pull-to-unlock toggle lever, Short behind-panel depth,
    3. Solder or quickconnect termination, 2,4, 6, or 8 SPDT precision basic switches,
    4. 2 or 3 position, momentary and maintained action.


  2. TS Series:


    Generally used in lowcost 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.

  3. TS Series - Features:
    1. 2 or 3 position, momentary and maintained action,
    2. 1 and 2 pole circuitry, Solder, screw, or quick-connect terminals,
    3. Rated up to 20 A, Lever-tobushing seal.



  4. TW Series:


    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 environmentproof 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.

  5. TW Series - Features:
    1. Qualified to MIL-DTL-83731, IWTS (Integrated Wire Termination System),
    2. Saves space and weight, SPDT and DPDT circuitry,
    3. Temperature range: -65 °C to 71 °C [-85 °F to 160 °F], Silver alloy or gold-plated contacts,
    4. Sealed bushing versions, Choice of 1/4 in or 15/32 in bushing,
    5. Color tab available on 15/32 in bushing.




  6. image image image

    Sealed Toggle Switches AT Series TS Series TW Series
    Type stainless steel toggle stainless steel, phenolic toggle miniature stainless steel toggle
    Sealing MIL-PRF-8805/26/98 qualified to MIL-DTL-83781
    Operating temperature various -54 °C to 71 °C [-65 °F to 160 °F] -65 °C to 71 °C [-85 °F to 160 °F]
    Actuators/levers standard, locking, tab, special design standard standard, locking, special design, tab
    Mounting 15/32 in bushing, 1/4 in bushing, threehole, above panel 15/32 in bushing bushing 15/32 in or 1/4 in
    Termination solder, solder T2, screw, quick-connect, leadwire, H58 solder, screw, quick-connect IWTS, solder, screw, quick-connect, H58, T2
    Circuitry SPDT, DPDT, DPNO, 3PDT, 4PDT, 6PDT, 7PDT, 8PDT, 10PDT 2-position, momentary and maintained SPST, SPDT, DPST, DPDT 2-3 position, momentary and maintained SPST, SPDT, DPST, DPDT 2-3 position, momentary and maintained
    Contacts silver, gold silver cadmium oxide silver alloy, gold-plated
    Amp rating 0.01 A to 5 A (resistive) up to 15 A 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



    ET Series:


    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.

  7. ET Series - Features:
    1. Most listings qualified to MIL-S-5594, Environment-proof sealing,
    2. Holding coil replaces mechanical holding mechanisms to maintain toggle in operate position,
    3. 2 and 3 position maintained and momentary toggle action, SPDT and DPDT circuitry.



  8. NT Series:


    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, agriculture equipment, material-handling equipment, factory-floor control units, and machine tool equipment manufacturers.

  9. NT Series - Features:
    1. Completely sealed switching chamber, IP67/IP68, NEMA 3, 3R, 4, and 13,
    2. Step-design case provides added space between terminals to prevent shorting,
    3. 2 and 3 position, maintained and momentary toggle action,
    4. Spring-loaded mechanism provides excellent tactile feedback,
    5. Features an “easy-start” threaded bushing and thermplastic case,
    6. High impact strength, non-tracking case enhances electrical stability.



  10. TL Series:


    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.

  11. TL Series - Features:
    1. Environment-proof sealing, Qualified to MIL-DTL-3950, 1-,2-, and 4-pole circuitry,
    2. Standard and pull-tounlock levers, Silver alloy or gold-plated contacts,
    3. 2 and 3 position, maintained and momentary toggle action,
    4. Temperature range: -65 °C to 71 °C [-85 °F to 160 °F], Completely sealed switching chamber,
    5. Step-design case provides added space between terminals to help prevent shorting,
    6. Available with IWTS (Integrated Wire Termination System), a wired, plug-in connection method.





image image image

Sealed Toggle Switches ET Series NT Series TL Series
Type magnetically held toggle industrial-grade toggle military-grade toggle
Sealing most listings qualified to MIL-S-5594 IP67/67; NEMA 3, 3R, 4, 13 qualified to MIL-DTL-3950
Operating temperature -65 °C to 71 °C [-85 °F to 160 °F] -40 °C to 71 °C [-40 °F to 160 °F] -65 °C to 71 °C [-85 °F to 160 °F]
Levers standard, pull-to-unlock, push-to-unlock, tab standard, locking, special design, tab standard, special design, tab, paddle, no lever
Mounting bushing 15/32 in bushing 15/32 in bushing 15/32 in
Termination screw, leadwire, turret solder, screw, quick-connect IWTS, solder, screw, quick-connect, leadwire
Circuitry SPDT, DPDT, 4PDT 2-3 position, momentary and maintained SPST, SPDT, DPST, DPDT 4PST, 4PDT 2-3 position, momentary and maintained SPST, SPDT, DPST, DPDT 3PST, 3PDT, 4PST, 4PDT 2-3 position, momentary and maintained
Contacts silver alloy, gold-plated silver cadmium oxide, gold-plated silver alloy, gold-plated
Amp rating 7 A max. (resistive) 0.5 A at 250 Vdc,0.5 A to 15 A at 0.5 Vac to 277 Vac,0.5 A to 20 A at 0.5 Vdc to 28 Vdc,0.75 A at 115 Vdc 0.5 A at 250 Vdc,0.75 A at 115 Vdc,0.5 A to 15 A at 0.5 Vac to 277 Vac,0.5 A to 20 A at 0.5 Vdc to 28 Vdc



Sealed Switches