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March 16, 2019

Industrial and grade 12V to 48 volt DC-DC Converters 25 Amp 1250 Watt

More DC/DC converters with 12VDC input and 1.5V, 5V,  6.5V, 8V, 10V, 11V, 12V, 13.8V, 14V, 15V, 16V, 18V, 19V, 20V, 21V, 48V, 27V, 36v, or 48V output
More DC/DC converters with 12V input
1250 watt DC/DC converter 12V to 48V

These robust DC converters have a wide operating temperature range, and use a DIN terminal block for input and output connections. They are designed to allow the use of 48 volt equipment in 12 volt, 14 volt, and 24 volt vehicles, marine, military, PLC, and cell tower applications. These are attractive, reliable, robust DC/DC converters good for fork lifts, off-road, construction and recreational equipment. They are relatively immune to vibration and shock.

To determine the output amps you need just add up the watts of all the equipment and divide by 48V.

These converters have common negative ground (non-isolated) and can be used for common ground and floating ground installations.
DC-DC Converters 25 amp
DC to DC converter
24V to 48V DC/DC converter, heavy duty
Part Number
and Price
Country of origin USA, NAFTA eligible
Nominal Input Voltage 12VDC
Input Voltage range 11 to 16 VDC
Max Input current at No Load <360 mA (<2mA when remote is "off")
Output voltage 48V nominal, 52.5V actual
Input current at full load 107 Amps
Output voltage adjustment by removing the front plate 54.2VDC to 52.8 VDC
Max Output Current(s) 25 Amps
Max Output Power (continuous) 1250W
Output current limit? Voltage foldback at current limit
Operating Temperature Range at 100% load -40°C to +40°C
Temperature derating Derate 15% per 10°C above 40°C to maximum of 60°C
Operating humidity 0-95% non condensing
Altitude 6000 meters
Efficiency >92 % at rated power
Load Regulation <60mV
Switching frequency kHz
Output ripple noise <50 mV rms
Isolation Fully isolated between input and output 2500VAC rms
Housing to input >1800VAC
Housing to output >1800VAC
Remote power on/off Yes, through grounding a wire on the connector
Remote voltage sense Yes. through two sense wires on the connector
Ingress rating IP676, (dust tight, immersion up to 1 meter depth, 1 Joule mechanical impact energy)
Connections Mating connector is the Canon 3106E24 - 11SB. See the connection diagram below
Protection Low input voltage < 10.5 +/-0.3 VDC (adjustable up to 13VDC)
High input voltage >17.0 +/- 1.0 VDC
Over temperature by internal thermostat, self resetting
Input reverse polarity by circuit breaker
Cooling Through convection and the baseplate
Dimensions 17.8 x 6.9 x 3.6 inches
45 x 18 x 9 cm
Drawings See below
Weight 8.2 kg (18 lbs)
Audible Noise None
Warranty 2 years limited warranty for parts and labor

PSEC-749HS drawing:

drawing of the 850W DC converter showing dimensions

PSEC-649HS drawing


OEM Battery Chargers Heavy Duty, High Current Switchmode 12VDC/ 48VDC Converters.

Universal Power Input OEM Power Supplies and OEM Battery Chargers Wide input voltage range suitable for 12 Volt, 14 Volt and 16 Volt systems.

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