MIL-PRF-55629/2G
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.
Auxiliary contact terminals: Contact capacity shall be 10 amperes at 250 volts 60/400 Hz and 2
amperes resistive, 1 ampere inductive to 50 V dc.
Actuator strength: 25 pounds.
Actuator operating force: 4 pounds, maximum.
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.
Interrupting capacities:
2,000 amperes at 50 V dc.
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): M55629/2-(dash number from table I).
5
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