May 27, 2022

Fully Isolated Heavy Duty Industrial and Military Grade 24 volt to 12 volt DC/DC Converters 40 Amp, 540 Watt. 5 year warranty.

12 to 24 volt DC Regulated Switching Power Supply DCDC converter power supplies

24V to 12V DC/DC converter, heavy duty industrial

These are fully regulated switching power converters (switchmode), designed to provide regulated 13.6 volt power for equipment in 12 volt vehicles. 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. The circuit boards are conformal coated for use in marine environments.

To determine the amperage you need just add up the watts of all the equipment to be powered and divide by 12 volts.

These converters are fully isolated, so will work in positive ground or negative ground applications.

DC-DC Converters	Heavy Duty 40 Amp DC to DC Converter	Ruggedized wide temperature range 40 Amp DC to DC Converter
Part Number and Price	PVTC615-24-12 $938 Allow up to 40 days for manufacturing	PVTC615X-24-12 $1080 Allow up to 40 days for manufacturing
Country of Origin	Canada, NAFTA eligible
Input Voltage	20 to 35VDC
Max Input current at No Load	< 410 mA
Output Voltage	13.6 VDC (12V available, ask at time of order)
Output Voltage Adjustment	±1V typical
Max Output Current(s)	45 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	3 x 15A ATC
Connections	Input #12 AWG wires Output Screw terminals
Protection	Over Voltage , Over Current, Short Circuit , Reverse Polarity , Over Load
Dimensions	368 x 259 x 109 mm (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:

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

Heavy Duty High Current Switchmode DC/DC Converters.

High efficiency.

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