MIL-PRF-62361E
b. Voltage switching circuit. The typical direction of a switching sequence is
CCW-OFF-clockwise (CW). The "OFF" switch position shall disconnect the
motor leads from electrical power for at least 50 ms. Total plug reversal
switching action time shall not exceed 250 ms.
3.3.1.6 Duty cycle. Type I and II motors shall conform to 3.3.1.2 and 3.3.1.3 after
application of a duty cycle as specified in 4.5.9. Type III motors shall conform to 3.3.1.2.
3.3.1.7 Insulation resistance. The motor shall have an insulation resistance of not less
then 12 megaohms initially at 500 V dc prior to installation of the electromagnetic interference
(EMI) filter (see 4.5.10).
3.3.1.8 Dielectric withstanding voltage. The motor shall be capable of initially
withstanding 500 V root mean square (rms), 60 hertz (Hz), for one minute or 600 V rms, 60 Hz,
for one second between armature winding and frame prior to installation of the EMI filter. There
shall be no breakdown or degradation of insulation (see 4.5.11).
3.3.1.9 Lead strength. The unit shall not be damaged when the lead is pulled, under
normal usage, in any direction at the motor or connector end (see 4.5.12).
3.3.1.10 Dimensions. The motor dimensions and interfaces shall conform to the
applicable drawings for the type specified, as follows (see 4.5.13):
a. Type I motors shall conform to 12265918.
b. Type II motors shall conform to 12265771.
c. Type III motors shall conform to 12406156.
3.4 Environmental conditions.
3.4.1 Temperature.
3.4.1.1 High (operating). The motor shall meet requirements during exposure to a
temperature of 60 degrees Celsius (°C) (see 4.6.1.1).
3.4.1.2 High (nonoperating). The motor shall not be damaged nor performance impaired
after exposure to a temperature of 70°C (see 4.6.1.2).
3.4.1.3 Low (operating). The motor shall meet requirements during exposure to a
temperature of -32°C (see 4.6.1.3).
3.4.1.4 Low (nonoperating). The motor shall not be damaged nor performance impaired
after exposure to a temperature of -54°C (see 4.6.1.4).
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