Thermal Protectors | McMaster-Carr

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3,429 Products

Electrical Power, Networking, and Controlling

Motor Starters

Turn motors on and off and protect them from current overloads

451 products

Motor Starter Overload Protectors

Upgrade your motor starter protector to use less energy and emit less heat

8 products

Monitoring Relays

Trip circuits or sound an alarm when voltage, current, or other limits are exceeded

31 products

Fuses

Stop the flow of electricity when there's a circuit overload or short; replace after each break

1,069 products

Circuit Breakers

Reusable way to interrupt circuits when they overload or short

439 products

Thermal Control Coatings

Give off almost no volatile emissions that could damage sensitive electronics and optics

1 product

Electrical Enclosure Inspection Windows

View components without exposing them to dust and moisture

6 products

Heating, Ventilation, and Air Conditioning

Insulation Sheets

Line the walls of furnaces, freezers, ductwork, and buildings to keep heat in or out

256 products

Pipe Insulation Jacketing

Guard pipe insulation from impact, moisture, and corrosion

153 products

Pipe Insulation Banding

Strap around pipe insulation to keep it in place

14 products

Pipe Insulation

Fit around pipe, tubing, and tanks to reduce heat loss or condensation

877 products

Insulation Fill

Blow into walls to fill gaps in existing insulation, or mix as a filler in insulating cement

1 product

Spray Foam Insulation

Expands to fill in cracks, gaps, and other hollow spaces for a tight seal against drafts and heat

18 products

Fabricating and Machining

Firebricks

Insulate furnaces to minimize heat loss while adding flame resistance

16 products

Fluid Handling

Temperature Controllers

Precisely regulate process temperatures; more accurate than temperature switches

8 products

Material Handling

Envelopes

Standard, bubble-lined, and paper-padded for mailing or shipping documents and other items

2 products

Bubble Wrap

Air bubbles cushion fragile items better than foam to protect them while shipping and storing

1 product

Shipping Box Liners

Line cardboard boxes to keep the items inside at a consistent temperature

13 products

Facility and Grounds Maintenance

Sink Pipe Covers

Prevent burns from hot water pipes

3 products

Protective Coatings

Shield surfaces from the surrounding environment

4 products

Safety Equipment

Heat-Resistant Blankets

Drape these blankets over machinery or hang them from walls to protect your workspace from sparks

7 products