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April 18, 2023

Industrial and military grade waterproof IP676 12 volt and 24V to 48 volt DC/DC Converters 15 Amp 850 Watt, or 8A 450 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
850 watt DC/DC converter 12V to 48V PSEC-638HS DC converter 12V to 48V

These DC converters are gasket sealed, and are fully IP676 ingress protected. They have a wide operating temperature range, and use a single military style circular bayonet connector for both input and output. The wide input voltage range allows use in 12V or 24V systems, and 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 utility poles, mines, humid environments, fork lifts, off-road, construction, arctic installations, military vehicles 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 are fully isolated and can be used for all 12 volt and 24 volt systems, including negative ground, positive ground, and floating ground installations.
DC-DC Converters 15 Amp
DC to DC Converter
12V to 48V DC/DC converter, heavy duty  waterproof
8 amp
DC to DC converter
12V to 48V 8 amp waterproof DC/DC converter
Part Number
and Price
Replaces PSEC-749HS
Cable, 6 foot with connector Cable and connector
$295 each
The cable and all parameters are the same except where listed below
Connector only CA3106E24-11SB NATO connector without cable
$110 each
One cable is used
Nominal Input Voltage 12VDC and 24VDC  
Input Voltage range 10.5 to 32VDC  
Max Input current at No Load <160 mA <180 mA
Output voltage 48V (factory set at 50V) 48V
Maximum input current at full load 65A with 12.2Vin and 48.5 Vout  
Output voltage adjustment by removing the front plage 42 VDC to 55 VDC  
Max Output Current(s) 15 Amps for output voltages set between 42V and 55V 8A for output voltages adjusted to 42V and 55V
Max Output Power; the actual output current depends on the ratio between the input and output voltages. Maximum Output power =
Vout * 15 amps
For example 28 volts * 32 Amps = 896 Watts
Vout*15 amps
Max Output Power (continuous) 850W 450W
Output current limit? 110% of maximum current with continuous automatic retry, 1000W peak for short pulses Short pulses up to 550W
Operating Temperature Range at 100% load -40°C to +70°C  
Operating humidity 0-100%  
Efficiency >91.5 % at 50% rated power
>90% at full rated power
Load Regulation <250mV with remote sensing  
Switching frequency kHz  
Output ripple noise <50 mV rms at maximum load  
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,
High input voltage > 32.0 +/- 1.0 VDC
Over temperature by internal thermostat, self resetting
Cooling Through convection and the baseplate  
Dimensions 15.5 x 8.0 x 2.9 inches / 394 x 203 x 74 mm 8.62 x 7.75 x 2.95 inches
21.9 x 20 x 7.5
Fuse can be accessed by removing the front cover ATC-30  
Drawings See below  
Weight 5.5 kg (12 lbs) 3.2 kg (7 lbs)
Audible Noise None  
Warranty 2 years limited warranty for parts and labor  

remote sense configuration

PSEC-752HS drawing:

drawing of the 850W DC converter showing dimensions

PSEC-652HS drawing

drawing of the 450 watt converter
connection diagram

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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