MIL-T-27/151C
REQUIREMENTS: (When numbers in parentheses, i.e., (1-2) are used, they indicate the winding and the extreme terminals of the winding.)
Electrical ratings: Primary voltage:
(1-2): 105 volts, 50/60 Hz (with 1-3 and 2-4 connected). (1-5): 115 volts, 50/60 Hz (with 1-3 and 2-4 connected). (1-4): 210 volts, 50/60 Hz (with 2-3 connected).
(1-5): 220 volts, 50/60 Hz (with 2-3 connected). Secondary voltage (6-7): 5 volts.
Secondary current (6-7): 10 amperes.
Voltampere: 50. Working voltage (peak): (1-5): 710 volts.
(6-7): 6,400 volts.
Design and construction:
Dimensions and configuration: See figure 1. Duty cycle: Continuous.
Case: Metal encased. Terminals: Solder lug:
(1, 2, 3, 4, and 5): NC-3 or equivalent. (6 and 7): Lundy 4780 or equivalent.
Terminal height:
(1, 2, 3, 4, and 5): 0.438 inch, maximum. (6 and 7): 1.000 inch, maximum.
Weight: 3.81 kg, maximum.
Operating temperature range: -55°C to +130°C.
Terminal strength: (1, 2, 3, 4, and 5): MIL-STD-202, method 211, test condition A, 5.0 pounds. (6 and 7): MIL-STD-202, method 211, test condition E, 18 ounce-inches.
Dielectric withstanding voltage (at sea level): (1-2): 2,000 V rms.
(3-5): 2,000 V rms.
(6-7): 10,000 V rms.
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