MIL-PRF-27/328C
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 V rms, 50 to 65 hertz.
Primary dc resistance: 6.55 ohms ±25 percent.
Secondary: See table I.
Volt-ampere rating: 30 volt-amperes.
Working voltage: 535 volts peak.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle: Continuous.
Case: Metal enclosed.
Material: Steel.
Terminals: Solderable hook terminals.
Terminal height: 0.375 ±0.063 inch.
Terminal diameter: 0.062 ±0.005 inch.
Weight: 3.3 pounds, maximum.
Operating temperature range: -55C to +130C.
Altitude: 10,000 feet.
Terminal strength: MIL-STD-202, method 211, test condition A, 2.0 pounds.
Dielectric withstanding voltage (each winding, secondary winding shall be connected in parallel):
At sea level: 1,500 volts rms.
Electrical characteristics:
Rated load: With 115 volts ac and 60 Hz across (1-2), and rated current in secondary, secondary
voltage shall be as specified in table I within ±3 percent.
Regulation: Voltage (no load) - Voltage (rated load) x 100
Voltage (rated load)
Shall not exceed 10 percent.
Polarity: Additive with terminals 2 and 3 connected and 5 and 4 connected.
2
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business