January 15, 2024

Fully Isolated Heavy Duty Industrial and Military Grade 48 volt to 48 volt DC/DC Converters 40 Amp, 540 Watt. 5 year warranty.

Heavy Duty and Military Grade 48V to 48V DC/DC converters

5 Amp	7.5 Amp	10 Amp	40 Amp this page	40 Amp

These are fully regulated switching power converters, designed to provide regulated 54.4 volt power for equipment in 48 volt vehicles, -48V for telecom installations and power plants. These are attractive, reliable, robust DC/DC converters good for fork lifts, off-road, construction, military, marine and recreational equipment. They are ultra-quiet both electrically and acoustically.

To determine the amperage you need just add up the watts of all the equipment to be powered and divide by 54.4volts.

These converters are fully isolated, so will work in positive ground or negative ground (+48V and -48V) applications.

DC-DC Converters	Heavy Duty 10 Amp DC to DC Converter	Ruggedized, wide temperature range 10 Amp DC to DC Converter
Part Number and Price	PVTC615-48-48 $1048 Allow up to 3 weeks for manufacturing	PVTC615X-48-48 $1190 Allow up to 3 weeks for manufacturing
Country of Origin	Canada, NAFTA eligible
Input Voltage	40 to 60VDC
Max Input Power at No Load	< 10Watts
Output Voltage	54.4 VDC (48V available, ask at time of order)
Output Voltage Adjustment	±1V typical
Max Output Current(s)	12.5 Amps 10 minutes maximum
Max Output Power Peak	680 watts
Max Output Power (continuous)	544 Watts (40 Amps)
Duty Cycle	100% rated power 24 hours a day
Output current limit?	Yes
Operating Temperature Range	-25°C to +40°C	-40°C to +55°C
Derating	2.5% per °C up to +50°C	2.5% per °C up to +60°C
Efficiency	>85 %
Line Regulation	<±0.5%
Load Regulation	<±0.5%
Transient Response	<2V for 50% surge
Switching frequency	60 kHz
Output ripple noise	<50 mV rms
Noise inserted on the input terminals	<50 mV rms
Isolation	>1500 volts isolation from case to any terminal, >1500 Volts isolation input to output. Transient voltage suppression.
Remote power on/off	Option
Digital Volt/Amp meter	Option
Indicators	Audio and visual indicators for constant current, low input voltage, low output voltage, over temperature. Dry Contact output failure relay.
Input Fuse	1 x 25A ATC
Connections	Input #12 AWG wires Output Screw terminals
Protection
Dimensions	368 x 259 x 109 mm Over Voltage , Over Current, Short Circuit , Reverse Polarity , Over Load (14.5 x 10.2 x 4.3 inches)
Drawings	Click Here for Drawing
Weight	3.2 Kg (7 lbs)
Audible Noise	None
Typical service life	87000 hours
Warranty	5 years	1 Year
Approvals	cETLus pending

drawing of the PVTC615 showing dimensions3

How to use the dry contact relay

Dry Contact Relay: To use your dry contact output fail relay you must connect a 9-pin D connector to the unit. You must use pins one and six as is indicated on the remote connector diagram. The relay is factory preset to fail in the closed position when the low output LED and buzzer come on. If you wish to have the relay fail in the open position when the low output LED and buzzer come on, you must take the cover off the unit and move the jumper to the other position on J10. J10 is located next to the relay K1.
jumper position selection

To change the position of the jumper, first turn the unit off and disconnect the unit from both the power and load(s). Next, turn the unit on for 30 seconds to discharge the capacitors, then turn it off again. Remove the eight screws holding on the cover. Turn the unit upside down, remove the cover and locate J10. It will be next to the relay K1 as is shown in the above diagram. Simply move the jumper to the desired position as is shown in the above diagram. Replace the cover and re-install the eight cover screws. Reconnect the unit to the power and load(s).

Advantages:

Heavy Duty High Current Switchmode DC/DC Converters.

High efficiency.

Excellent line and load regulation.

Wide input voltage range suitable for 24 Volt, and 28 Volt systems.

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