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These Power Supplies provide their maximum current output continuously hour after hour without overheating. For more output, just connect two or more in parallel or series. These are the only high-current supplies in their price range built to withstand continuous duty!

Regulated 28A DC Power Supply

The new B+K Precision Regulated 28A DC Power Supplies 1689 & 1690 offer multiple DC output terminals; two pairs of 3A, snap-in DC connectors are easily accessible on the front panel, and a pair of 28A screw-on DC output terminals are located on the rear panel. Both models provide their maximum current output continuously hour after hour without thermal drifting. They are ideal car battery substitutions for servicing or demonstrating high power car stereo, cellular phone products, or even ham radio.

• 1VDC to 15VDC Variable Output
• 28A Output at =13.5VDC
• Overload pprotection
• High RFI stability
• Multiple DC Output Terminals.

Model 1686A

Model 1688A

Variable Voltage - 3 to 14 volts DC output

• 20 A guaranteed @ 13.8V (Model 1688)
• 12 A guaranteed @ 13.8V (Model 1686)
• Current limiting overload protection
• Over voltage protection
• Short circuit protection
• Reverse polarity protection
• Thermostatically controlled cooling fan
• Thermal protection
• Operates continuously at full load without overheating
• Connect two in parallel for more current
• Connect two in series for higher voltage

High Current DC Power Supply

Models 1790/1791 are cost effective, high power, regulated DC power supplies with 640 Watt output. They are linear high current DC power supplies suitable for bench operation or standard 19" rack operation. These linear power supplies are high power workhorses that will easily deliver clean power to your high-current circuits.

Ideal for telecom application

Since noise elimination is critical for telecom application, the 1790 & 1791 DC power supplies offer low noise output, so that power supply noise does not interfere with testing of telecom devices. The 1790 & 1791 are ideal for manufacturers who build equipment for telecom industry that operates from 48V or higher DC rail such as: base stations, switches, public and private telecom network equipment, PBX system and DC to DC power supplies that provide power to this equipment.

These well-regulated constant voltage/constant current supplies deliver 0-32V at 0-20A (Model 1790) or 0-64V at 0-10A (Model 1791). They can be adjusted continuously throughout the output range by front panel controls. The units will automatically cross over from constant voltage to constant current mode and vice-versa if the output exceeds preset limits. Front panel LED meters are provided for monitoring voltage and current. The load terminals and remote sense terminals are located on the front panel. Either the positive or negative output terminal may be grounded or floated up to a maximum of ±300VDC above ground.

Special features include the ability to set constant current with no load and remote sense to compensate for any wire loss. The 1790 and 1791 are designed to meet CE specifications and have superior performance to comparable models costing 20 to 30% more.

• Constant Voltage/Constant Current Operation
• Remote Programming Facility
• Facility for Presetting the Output Voltage and Max.
• Load Current Limits
• Separate DC Output ON/OFF Switch
• Remote Sensing Facility
• High Stability and Close Regulation ±0.01%
• Meet CE Specifications