MIL-PRF-27/343F
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): 115 volts rms, 400 ±20 hertz.
Secondary voltage and current (3-5): See table I.
Volt-ampere: 175 voltamperes.
Working voltage (1-2): 535 volts peak.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle. Continuous.
Case: Encapsulated.
Material: Diallyl phthalate.
Terminals: Turret type.
Height: See figure 1.
Weight: 2.2 pounds, maximum.
Operating temperature range. -55° to +130°C.
Altitude: 70,000 feet.
Terminal strength: MIL-STD-202, method 211, test condition A, 2.0 pounds.
Dielectric withstanding voltage (each winding):
At sea level: 1500 volts rms.
At reduced barometric pressure: 1.25 times the peak working voltage specified.
Electrical characteristics:
Rated load: With 115 volts rms and 400 Hz in (1-2), and rated current in secondary, the voltage
across (3-5) shall be as specified in table I.
DC resistance:
(1-2): 0.7 ohm ±25 percent.
(3-5): See table I.
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