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May 27, 2022

Industrial and Steel Mill Grade 125 Volt to 48 Volt DC/DC Converters 25 Amp, 1200 Watts, Reliable Heavy Duty, including IP66 waterproof option. 5 year warranty.

800 watt power supply for electric vehicle auxiliary systems
Ultra-quiet, precisely regulated switching power converters (switchmode), designed to allow the use of even power-noise sensitive 48 volt equipment in steel mills, mines, and other systems where 125VDC is available. These are attractive, reliable, robust DC/DC converters. Robust, with a high tolerance for shock and vibration, polarity protected and dirty-power protected.

To determine the amperage you need just add up the watts of all the 48V equipment and divide by 48 volts. These high voltage DC converters have a 3 year warranty.

The Steel Mill option includes immunity to spikes up to 1000V. These are also designed to be used where permanent connection is desired.
Big DC-DC Converters

Heavy Duty
25 Amp
125VDC to 48VDC Converter

Waterproof IP66, ruggedized and wide temperature range
25 Amp
125VDC to 48VDC DC Converter

Part Number
and Price
(replaces PVTC1503-110-48 and PVTC1505-110-48)
Allow up to4 weeks for manufacturing
(replaces PVTC1503-110-48-X and PVTC1505-110-48-X)
Allow up to 4 weeks for manufacturing
Input Voltage Nominal: 115VDC, Range: 120VDC-400VDC
Output Voltage 54.4VDC user adjustable from the front panel ±2V (48V on special request)
Output Current 28 Amps
Maximum Continuous Power 1360W at 54.4V output
1200W at custom 48 volt output
Output current limit? Short circuit protection
Operating Temperature Range -25°C to +40°C -40°C to +55°C
Derating Derate at -2.5% per °C up to +70°C
Load Regulation <±0.5% not including cable resistance
Duty Cycle 100% power for 24 hours / day continuously
Line Regulation <±0.5%
Output ripple and noise <50 mV rms
Efficiency >80 %
Cooling Temperature controlled fan comes on when needed
Case Black, hard anodized Military Grade extrusion ensures a high tolerance for shock and vibration.
Isolation Fully Isolated
Input-Output 1500 VDC,
500 VDC
Fully Isolated
Input-Output 1500 VDC,
500 VDC
Input Fuse 25A MDA
Front panel Off/On rocker switch, fuse, and indicator lights to indicate "output present" and "over-temperature"
Connections Input cord AWG 6
Output cables AWG 6
Protection Over Voltage Crowbar, Over Current, Short Circuit , Reverse Polarity , Over Load, Thermal shut-down, Current limiting
Dimensions 17 x 8.2 x 3.5 inches
43.2 x20.8 x 8.9 cm
dimensions do not include the carrying handle, see drawing below
Weight 14.4 lb, 6.6 kg
Audible Noise None at 3 feet, 34.5 dB when fan is operating
Warranty 5 years 1 year
Replaces part numbers VTC1505-110-48

High efficiency boost converter for 100 to 400 volts input, 48 volts 1400 watts output.

OEM Power Supplies Excellent line and load regulation with low electronic, EMI, and audio noises

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