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Power Supplies

You're sure to find what you need in our extensive collection of power supplies — everything from "wall warts" to professional-grade programmable benchtop power supplies — all of which Circuit Specialists offers at remarkably low prices. Our power supplies feature high-resolution LCD and LED displays and are well suited for the lab and for the classroom. We also carry affordable variacs, which have a staggering amount of applications and are built to last.

Benchtop Power Supplies

Benchtop power supplies with various output selections, voltages, and amp availability. The LED and LCD displays on these power supplies are some of the best on the market.

Enclosed Switching Power Supplies

Our large selection of enclosed switching power supplies range from 3.3 to 48V and come in single, dual, and triple output configurations. Tested and reliable.

Variacs

Used for raising or lowering voltages, variacs can be used for a number of applications: power supply testing, automation control, controlling motor speed, and much more.

Rack Mount Power Supplies

Easily stack multiple units in one rack with these compact yet powerful units — or remove the mounting ears on the front panel and use as a benchtop power supply.

Adjustable DC Power Supplies with Adjustable Current Limiting

Regulated linear benchtop power supplies featuring adjustable current limiting. Large LED readouts display volts and amps. Current output can be preset.

Large & Ultra-Large DC-Regulated Series

Heavy-duty benchtop power supplies — part of our DC-regulated series. These power supply variable voltage from 0-50, 0-120, or 0-200V and current from 0-2, 0-5, and 0-30A.

Low-Priced CSI Power Supplies

Our programmable power supplies are regarded as some of the best available online. Expertly built and priced to move, these are fantastic machines at a remarkable value.

DC to AC Power Inverters

Use your car or boat's battery to power electrical equipment with our DC to AC power inverters. Perfect for televisions, laptops, video games, and much more.

Universal AC-to-DC Wall Power Supplies

Simple, affordable universal AC-to-DC wall power supplies with an assortment of voltage, ampage, and wattage ratings. Choose the power supply to meet your needs.

Computer Power Supplies

Power your PC with one of Circuit Specialists' AT, ATX, or microATX computer power supplies. Our computer power supplies range from 145 to 400 watts in output.

Step Up/Step Down Transformers

Used to adjust between two different voltages — e.g. 60 Hz North American power vs. 50 Hz European power — our high quality step up/step down transformers will suit your needs.

Programmable DC Electronic Loads

High-performance, reliable programmable direct current (DC) electronic loads, or dummy loads, are invaluable when you need to test power supplies, batteries, etc. under load.

Programmable Power Supplies

Our high-performance programmable power supplies providing stable and reliable direct current (DC) power and feature high-level performance and impressive specifications.

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