Basic Switches HM Series
Hermetically Sealed
80HoneywellSensingandControlForapplicationhelp:call1-800-537-6945.
FEATURES
1
Hermetically sealed per enclosure de-
sign symbol 5, MIL-S-8805
1
Powerloadswitching capabilityup to4
amperes, 28 VDC and115VAC, 400Hz
1
Temperature tolerance from –85°Fto
+250
°F (–65°Cto+121°C)
1
High temperature construction for use
from –85°Fto+500°F (–65°Cto
+260
°C)
1
Variety of auxiliary actuators
1
Choice of terminal styles
1
Gold contacts for special applications
1
Military standard construction with list-
ings on the MIL-S-8805 qualified prod-
ucts list.
GENERAL INFORMATION
HM switches are not generally recom-
mended for115 VAC, 60 Hz. If you have a
60Hzapplicationinthemilliamprange,or
applications that require the switch to
function electrically during exposure to
sub-freezing temperatures, contact the
800 number for special design variations
that are available.
ELECTRICAL RATINGS
Circuitry Electrical Rating Code
Single-Pole H 1 amp res., 0.25 amp ind., 28 vdc.
Double-Throw
Single-Pole I 4 amps res., 2 amps ind., 0.5 amps lamp load, 115 vac,
Double-Throw 400 Hz.
4 amps res., 2 amps ind., 1 amp lamp load, 28 vdc
Single-Pole J
1
⁄2 amp res.,
1
⁄4 amp ind. (sea level or 70,000 ft.),
Double-Throw 28 vdc
Single-Pole K 3 amps res., 1 amp ind. (sea level or 70,000 ft.), 28 vdc
Double-Throw 1 amp res. or ind. (sea level), 115 vac., 400 Hz.
Single-Pole L 3 amp res., 1 amp ind., 28 vdc
Double-Throw 1 amp res., 1 amp ind., 115 vac, 400 Hz.
APPLICATION NOTES
1. Honeywell MICRO SWITCH does
not
recommend the use of silver cadmium oxide
switch contactsin non-arcing loads. Non-arcing loads are generallyloads less than
12 volts and/or 0.5 amp. Catalog listings in the 5, 6, 15, and 16HM Series use silver
cadmium oxide contacts. If you have specific questions, contact the MICRO
SWITCH Application Center at 1-800-537-6945.
2.Forapplicationsinvolvingnon-arcingloads,cataloglistingsinthe9,10,19and20HM
Series are recommended.
3. The 1, 2, 5, and 6HM Series are recommended for use only in 3 to 4 amp range
applications.
