MIL-PRF-62539A
case and either pins B or D with the case ground wire disconnected and pins A and C connected
to ground.
3.4 Interface requirements.
3.4.1 Envelope, mounting and connection interface. The low voltage protection module
shall conform to the envelope dimensions, the bolt hole locations and size and the electrical
connection location and interface (see 3.4.4) as specified on drawing 11668620.
3.4.2 Interchangeability. All modules including mounting and connecting provisions shall
be completely interchangeable.
3.4.3 Mechanical interface. The module shall be constructed to operate in any mounting
attitude.
3.4.4 Electrical interface. Electrical connector pins to the utilizing electrical system shall
be designated as follows.
Connector Pin Function
Connector Pin Designation
Battery Voltage Sensor
A
Relay Input
B
Generator Voltage Sensor
C
Relay Output
D
Ground
Case
3.4.5 Weight. The module shall not exceed a weight of 850 grams (g) ((30 ounces)(oz)).
3.5 Ownership and support requirements.
3.5.1 Endurance. The module shall meet the requirements of 3.3.1, and 3.6.1 after a total
of 9000 cycles of making at 100 A and breaking at 20 A in a temperature ranging from -54 to
149°C (-65 to 300°F).
3.5.2 Identification and marking. Identification and marking of the module shall be
permanent and legible, and shall include, as a minimum.
a.
Module, starter low voltage protection.
b.
24 V dc.
c.
Identification part number.
d.
Manufacturer's identification number (CAGE).
4
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