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January 15, 2024

Industrial Telecommunications and military grade waterproof IP67 48V to 24V DC/DC Converters or 30A 800 Watt

More DC/DC converters with 48VDC input
More DC/DC converters with 48V input
800 watt DC/DC converter 48V to 28V

These IP67 rated DC-DC converters are fully IP676 ingress protected, including immersion. They have a wide operating temperature range, and use a single military style circular bayonet connector which contains both input and output terminals. The input voltage range is 44-56VDC use of 28 volt equipment in 48 volt, equipment such as 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 28V.

These converters are fully isolated and can be used for all 48V systems, including negative ground, positive ground, and floating ground installations. High efficiency, over 94% at any load.
DC-DC Converters 15 Amp
DC to DC Converter
48V to 24V DC/DC converter, heavy duty  waterproof
Part Number
and Price
6 Foot cable with connector Cable with connector
$295 each
Connector only CA3106E24-11SB NATO connector without cable
$110 each
One cable is used
Nominal Input Voltage 48VDC
Input Voltage range 40VDC to 61DC
Max Input current at No Load <220 mA
Output voltage 26V
Output voltage adjustment 23.5 VDC to 27 VDC by removing front plate
Max Output Current(s) 30 Amps
Max Output Power (continuous) 800W
Output current limit? 110% of maximum current with continuous automatic retry, 1000W peak for short pulses
Operating Temperature Range at 100% load -40°C to +70°C with 100% load
Operating humidity 0-100%
Efficiency >94 % over full operating range
Load Regulation <0.2% with remote sensing
Maximum input current 19A
Switching frequency kHz
Output ripple noise <50 mV rms
Isolation Fully isolated between input and output 1800VAC rms
Housing to input >2500VAC
Housing to output >2500VAC
Remote power on/off Yes, through grounding a wire on the connector. This feature can be bypassed by a jumper under the cover plate
Remote voltage sense Yes. through two sense wires on the connector
Ingress rating IP67, 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 40 +/-0.3 VDC,
High input voltage 61.0 +/- 1.0 VDC
Overload knee current limiting starting at 110%
Over temperature by internal thermostat, self resetting
Cooling Through convection and the baseplate
Dimensions 15.5 x 8.0 x 2.9 inches
39.4 x 20.3 x 7.4 cm
Fuse can be accessed by removing the front cover ATC-30
Drawings See below
Weight 8.2 kg (18 lbs)
Audible Noise None
Warranty 2 years limited warranty for parts and labor

PSEC-849HS drawing:

drawing of the 850W DC converter showing dimensions
connection diagram
remote sense setup

OEM Battery Chargers Heavy Duty, High Current Switchmode 48VDC / 24VDC Converters.

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