WH120
AC TO DC REGULATED POWER CONVERTER
1200 Watts
The WH120 DC power supply converts 115/200 VAC, 4 wire Wye, 400 Hz 3 phase input to a regulated 28 VDC up to 1200 watt maximum continuous output.
Design features include off line rectification, a pulse width modulated DC to DC step down voltage conversion and a rugged, high power IGBT power module for reliable and lightweight operation.
The WH120 is designed for the operation of mobile and ground vehicle equipment and lighting systems requiring regulated 28 VDC.
Specifications
Input Voltage
115/200 VAC ± 10 VAC. 3 phase
115/200 VAC ± 10 VAC. 3 phase
Input Frequency
400 Hz ± 100 Hz
400 Hz ± 100 Hz
Input Current
4.2 amps per phase
4.2 amps per phase
Output Voltage
28 VDC ± .2 VDC
28 VDC ± .2 VDC
Output Current
42 ADC
42 ADC
Output Ripple
200 mVpp nominal at 1200 Watts.
200 mVpp nominal at 1200 Watts.
Output Power
1200 Watts maximum continuous.
1200 Watts maximum continuous.
Response Time
NL to FL; 2 mSec typical, FL to NL; 10 mSec typical
NL to FL; 2 mSec typical, FL to NL; 10 mSec typical
Regulation
Line; 1.5% typical, Load; 1.5% typical
Line; 1.5% typical, Load; 1.5% typical
Efficiency
80% typical at full Load.
80% typical at full Load.
Overload Capacity
120% Output current overload for atleast 5 minutes.
120% Output current overload for atleast 5 minutes.
Overshoot
FL to NL; +2 Vpk.
FL to NL; +2 Vpk.
Undershoot
NL to FL; -10 Vpk.
NL to FL; -10 Vpk.
Protection Circuits
The unit withstands without damage or degradation loads exceeding 120% of full load and an output short circuit. The unit delivers rated output upon removal of the output short.
The unit withstands without damage or degradation loads exceeding 120% of full load and an output short circuit. The unit delivers rated output upon removal of the output short.
Remote On/Off
Yes (Grounded to ON)
Yes (Grounded to ON)
Temperature
-55°C to +71°C (-65°F to 160°F)
-55°C to +71°C (-65°F to 160°F)
Altitude
55,000 ft.
55,000 ft.
Cooling
Thermostatically controlled brushless fan.
Thermostatically controlled brushless fan.
Weight
8.0 lbs maximum.
8.0 lbs maximum.
