Converters | McMaster-Carr

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2,079 Products

Electrical

Transformers

Raise or lower voltage to meet the needs of an individual circuit

237 products

Power Supplies

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

259 products

Power Converters

Connect power supplies to equipment that requires a different input voltage

50 products

Inverters

Transform DC voltage to power devices that run on AC voltage; prevent overload damage

12 products

Voltage Adapters

Change AC voltage to DC voltage to power a device

284 products

Phase Converters

Generate three-phase output power from a single-phase input

11 products

Rectifiers

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

30 products

Electrical Adapters

Change electrical connectors to another type, size, or gender

292 products

Electrical Cord Adapters

Change the electrical connection style between an outlet and your equipment

27 products

Electrical Cords

Connect equipment and devices to a power supply

45 products

Electrical Cord Circuit Interrupter Converters

Hardwire to extension cords to protect against electric shock in wet areas

9 products

Terminal Adapters

Convert wire terminals from one connection type or gender to another

7 products

Terminal Splitters

Divide one male quick-disconnect connection into two

4 products

Electrical Connector Thread Adapters

Join two connectors that both have internal threads

6 products

Circuit Board Voltage Regulators

Power circuits from a high-voltage source without frying your system

15 products

Current Conditioners

Lower current flows to levels that work with panel monitors and other electrical measuring equipment

33 products

Fuse Block Reducers

Adapt fuse blocks designed for large, high-amp fuses to hold small, low-amp fuses

10 products

Diodes

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

93 products

Logic Level Converters

Translate signals between development boards, sensors, and other components with different voltages

1 product

Current Relays

Prevent AC current overload in equipment such as motors and heaters

5 products

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

3 products

Motor Controller/Drives

Determine settings such as steps, direction, and step resolution from one device

3 products

Battery Terminal Adapters

Convert one battery terminal style to another

6 products

Battery Terminal Fasteners

Replace bolts in battery terminals

3 products

Measuring and Inspecting

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

5 products

Test Lead Adapters

Change tip styles to take different measurements with the same test leads

6 products

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

41 products

Test Lead Clips

For hands-free testing, create a temporary yet secure electrical connection

77 products

Patch Cords

Make point-to-point connections between electrical testing equipment and your devices

12 products

BNC Test Cords

Connect oscilloscopes and other testers to your equipment

4 products

Calculators

Perform finance functions, conversions, space and volume estimations, graphing, and more

16 products

Communication

Reference Charts

Check decimal equivalents, drill sizes, or specifications for socket screws

6 products

Calendars

Wall, wet erase, and dry erase calendars to keep track of dates and appointments

1 product

Power Transmission

Air to Hydraulic Power Units

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

8 products

Gear Boxes

Adjust motor speed to achieve the right torque for your machine; transmit motion at a 90° angle

170 products

Facility and Grounds Maintenance

Paint Primers

Extend the life of paint and coatings by preparing surfaces beforehand

4 products

Drinking Fountain Bottle Filler Converters

Turn standard drinking fountains into water bottle filling stations

4 products

Manual-to-Touch-Free Drinking Fountain Converters

Replace the push bar on your drinking fountain to dispense water hands-free

2 products

Flush Valve Converters

Make manual flush toilets and urinals touch-free

21 products

Pole Handle Adapters

Convert a pole handle to a tapered or threaded handle, or replace an existing handle tip

2 products

Fluid Handling

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

145 products

Thermocouple Connector Adapters

Convert round-pin male connectors to flat-pin male connectors

10 products

Thermocouple Connector Covers

Shield thermocouple connectors from dust and debris

1 product

Thermocouple and RTD Mounts

Join thermocouple connectors and probes that have different connection types

18 products

Lighting

Light Socket Adapters

Convert light fixtures to accept different bulbs

5 products

Light Sockets

Install or replace sockets in fixtures for standard household, tubular, compact, or miniature bulbs

3 products

Emergency-Light Conversion Kits

Convert fluorescent lights into emergency backup lights

3 products

Flashlight Converters

Convert incandescent, halogen, krypton, and xenon Maglites to LED for more light and battery life

2 products

Building and Machinery Hardware

Door Knob Converters

Convert a knob into an easy-to-open handle without replacing the hardware

1 product

Multipoint Latch Conversion Kits

Turn your single-point lock or latch into a system that fastens doors at multiple points

12 products