SEC America Model 680 DC Converter

12 VDC to 25.2 VDC at 40 amps continuous

The SEC America Model 680 DC Converter is a US built 960 watt unit, of the highest quality. The SEC unit is highly efficient, which provides cool operation, high reliability, and long life expectancy for the converter and the equipment which it powers. The design makes this performance possible over an extremely wide operating temperature range(the best we have seen) and under the most rigorous vibration and shock conditions. Only top quality components are used and the circuit boards are fully potted. These units may cost more than others, but are fully suitable for military, industrial, scientific, and other applications where exceptional electronics are demanded. We have multiple units of this model on armored vehicles in the Middle East.

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SEC America Model 680 Converter Part#: Model 680

SEC America
40 Amp Continuous
DC to DC Converter


Model 680 Owners Manual

Electrical Specifications

Output Voltage:26.4 Nominal
Output Voltage Adjust Range:24.5 VDC to 28.0 VDC
Continuous Max Load Amps:40 ADC @ 60C ambient (Input 26.4)
Maximum Power Dissipation:60 Watts @ Full Load (40A, 26.4 VDC out)
Maximum Input Current:90 A (12 VDC in)
Overload Protection (primary)Electronically current limited
Overload Protection (primary)Magnetic Circuit Breakers at Input
Cooling:Convection and Forced Air
 Thermostat Controlled Fan activates at skin temperature of 60C
Output Ripple Voltage:10 mV RMS (20C to 75C) 50 mV RMS (-30C)
Input Voltage Range:11 VDC to 15 VDC
Input Output Isolation:Input and Output returns are common

Low Voltage Cutout Circuit:

Low Voltage Cutout Point:Adjustable from 10.5 VDC to 13 VDC
Low Voltage Cutout Hysteresis:1.2 VDC @ 13.0 V / 0.9 VDC @ 10.5 VDC

Activation Circuits:

1) May be activated through a command terminal.  
2) May be turned on in sections by using circuit breakers on front panel. 

Operating Parameters:

Ambient Operating Temperature:-30C to + 60C
Maximum Humidity:100% non condensing
Maximum Elevation:6000 meters above sea level

Mechanical Specifications:

Dimensions:14.0 L x 7.0W x 3.5 H (inches)
Shipping Weight:8 lb.
Construction:Aluminum base with painted steel wrap around
Mounting Method:#12 Hardware via front and rear mounting flanges
Mounting Centers:13.5 x 3.87 (inches)
Hook Up:3 Position Splicer Terminal Blocks

For technical information regarding SEC DC-DC Converters, be sure to visit SEC America, LLC - a leading US built power converter manufacturer. SEC America DC Converters

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