MIL-DTL-3950J
4.8.11.1 Overload circuit. The switch shall make and break 150 percent of the rated resistive load at
the applicable voltage and electrical frequency for 50 cycles of operation at room conditions.
4.8.11.2 Resistive load (dc and ac). One half of the switches shall make and break the rated resistive
load for 20,000 operating cycles while at room ambient pressure and a temperature of 71°C(-0°C, +4°C).
The other half of the switches shall make and break the rated resistive load for 20,000 operating cycles
while at room temperature and a pressure equivalent to 65,000 feet altitude.
4.8.11.3 Inductive load (dc and ac). One half of the switches shall make and break the rated inductive
load for 20,000 operating cycles while at a pressure equivalent to 65,000 feet altitude and at room
ambient temperature while the other half shall make and break the rated inductive load for 20,000
operating cycles at room ambient temperature and pressure. The dc inductive loads shall use
indicators which have response and stored energy values as indicated in figure 3 and figure 4. The ac
inductive loads shall have a power factor of 70 ± 5 percent.
FIGURE 3. Response (current vs time) Type I inductors only.
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