MIL-PRF-8805/49J
Dielectric withstanding voltage:
At atmospheric pressure: 1,000 V rms.
At reduced barometric pressure: 50,000 feet; 400 V rms.
Mechanical endurance: 25,000 cycles.
Electrical endurance: 25,000 cycles.
Electrical ratings: See table II.
TABLE II. Electrical ratings.
Load
Rating
Sea level - 28 V dc
50,000 feet - 28 V dc
code
Resistive
Inductive
Lamp
Motor
Resistive
Inductive
Lamp
Motor 1/
(amps)
(amps)
(amps)
(amps)
(amps)
(amps)
(amps)
(amps)
A
4
3
2.4
4
4
1
2.4
4
B
10
6
3.6
6
10
3
3.6
6
C
15
10
3.0
5
15
10
3.0
5
1/ Application information only.
Fluid resistance: Except for the cut end of the lead wire, switches shall be submerged in each of the
following fluids for 2 minutes to 2 minutes 30 seconds, which shall consist of one cycle (one cycle is 10
minutes to 12 minutes 30 seconds total). Each switch shall be subjected to three cycles.
a. Turbine fuel (MIL-DTL-5624).
b. Hydraulic fluid (SAE AS1241).
c. Coolanol 1/ (MIL-PRF-87252).
d. Ethylene glycol (ASTM-E1119).
e. Lubricating oil (MIL-PRF-7808).
After each immersion, the excess fluid shall be blown off the external surfaces of the switch with an air
jet. Following the third cycle, the switch shall be subjected to and shall meet the requirements for
dielectric withstanding voltage, insulation resistance, operating characteristics, seal tests, and marking
visibility.
Marking: The circuit schematic shall be marked on the switch case.
_______
1/ Monsanto Company registered trademark.
4
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