MIL-PRF-55629/1G
REQUIREMENTS
Dimensions and configuration: See figures 1 and 2.
Current ratings: See tables I and II.
Voltage ratings: See table III through table VIII. 240 V ac breakers are designed also for use at 120 V
ac.
High inrush: Applicable to time delays K, L, M, N, P, R, S, and T. Non-time delays H, I, and J are not
high inrush delays.
Tripping-time delays: See table III through table VIII.
Terminal and mounting hardware: See figures 1 and 2.
Terminals: See figures 1 and 2.
Actuator strength: 25 pounds.
Actuator operating force: 4 pounds, maximum.
Endurance (65 through 100 amperes): 6,000 mechanically performed make and break operations.
Terminal strength:
Applied load: 30 pounds.
Applied torque: 22 inch-pounds.
Vibration: Energized current shall be 90 percent for characteristics H, I, and J.
Shock: Energized current shall be 90 percent for characteristics H, I, and J.
Moisture resistance (65 through 100 amperes): Change in resistance shall not exceed 50 percent.
Temperature rise (65 through 100 amperes): 65C.
Interrupting capacities:
2,000 amperes at 50 V dc (32 V dc for 65 through 100 amperes).
2,000 amperes at 120 V ac, 60 Hz.
1,500 amperes at 120 V ac, 400 Hz.
1,000 amperes at 240 V ac, 60 and 400 Hz.
Part or Identifying Number (PIN): M55629/1- (dash number from table I).
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