Power Source | McMaster-Carr

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1,042 Products

Electrical

Power Supplies

Convert your facility's AC voltage to power equipment that runs on DC voltage

260 products

Rectifiers

Convert AC voltage to a constant DC voltage on a circuit board

30 products

Battery Chargers

Charge everything from large-cell to cordless tool to household batteries

53 products

Batteries

Household, button/coin cell, large-cell, and cordless tool batteries

432 products

Battery Adapters

Use a 20-volt battery in an 18-volt Dewalt cordless tool

1 product

Power Generators

Supply power to equipment in the field

7 products

Backup Power Supplies

Transfer power to a built-in battery during partial and complete outages

9 products

Capacitors

Deliver a burst of electrical energy for a short time to boost power to motors and other equipment

89 products

Solar Panels

Charge large-cell batteries with sunlight

4 products

Battery Charger/Starters

Send a starting current to large-cell batteries and fully charge them

4 products

Battery Jump Starters

Clamp to large-cell batteries to start vehicles and machines when you don't have access to an outlet

5 products

Electrical Adapters

Change electrical connectors to another type, size, or gender

1 product

Electrical Cords

Connect equipment and devices to a power supply

5 products

Diodes

Route current in one direction and block it in the other to protect sensitive electronics

93 products

Lighting

LED Drivers

Send electricity to LED lights and protect them from voltage and current fluctuations

22 products

Measuring and Inspecting

Battery Testers

Measure the health of rechargeable batteries, or check if it's time to replace disposable batteries

6 products

Shunts

Measure the current flowing through a circuit when the current is too high to only use a meter

5 products

Power Transmission

Hydraulic Power Units

Create and supply hydraulic pressure to keep hydraulic systems running

7 products

Air to Hydraulic Power Units

Power a hydraulic cylinder with air to avoid the setup, cost, and mess of hydraulic fluid

8 products

Facility and Grounds Maintenance

Flush Valve Replacement Parts

Replace virtually any part in the most common flush valve brands

1 product