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May 20, 2022

Reliable Heavy Duty Industrial and Steel Mill Grade 125 Volt to 12 Volt DC/DC Converters 100 Amp, 1200 Watts. 5 year warranty.

100 amp 12 volt heavy duty DC/DC converter, 125V input, 12 VDC output DCDC converters with high voltage input, 72V, 120 VDC, 250VDC,  300VDC inputs
More DC/DC converters with high voltage input
Very robust, fully isolated, ultra-quiet, precisely regulated switching power converters (switchmode), designed to allow the use of even power-noise sensitive 12 volt equipment in steel mills, mines, and other systems where 125VDC is available. These are attractive, reliable, robust DC/DC converters. They have a high tolerance for shock and vibration, are polarity protected and dirty-power protected.

To determine the amperage you need just add up the watts of all the 12V equipment and divide by 12 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
100 Amp
125VDC to 12VDC Converter

20 amp heavy duty DC/DC converter, 250V input, 12VDC output

IP66 Waterproof
100 Amp
125VDC to 12VDC DC Converter

20 amp heavy duty DC/DC converter, 250V input, 12VDC output
Part Number
and Price
(replaces PVTC1505-110-12 and PVTC1503-110-12)
Allow up to 15 days for manufacturing
(replaces PVTC1505-110-12-SM and PVTC1503-110-12-SM)
Allow up to 15 days for manufacturing
Input Voltage 120VDC-400VDC
Output Voltage 13.6VDC (12V on special request)
Output Current 100 Amps
Duty Cycle 100% power for 24 hours / day continuously
Maximum Continuous Power 1200W 24 hours per day
Output current limit? Short circuit protection
Operating Temperature Range -25°C to +40°C -40°C to +55°C
Derating -2.5% per °C up to +70°C
Efficiency >80 %
Line Regulation <±0.5%
Load Regulation <±0.5% not including cable resistance
Switching frequency kHz
Output ripple and noise <50 mV rms
Cooling Thermostatically controlled fan comes on when needed
Case Black hard anodized Military Grade extrusion ensures a high tolerance for shock and vibration. 18-8 stainless steel fastenings
Isolation Fully Isolated
Input-Output 1500VDC,
Fully Isolated
Input-Output 1500VDC,
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
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


OEM Battery Chargers High efficiency boost converter for 120 volts input, 12 volts 1200 watts output.

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

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