IEC Fuses | McMaster-Carr

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About Fuses

UL Class CC Time-Delay Midget Fuses for Motors

These fuses can withstand the high inrush current caused by a motor starting.

UL Class CC Time-Delay
Midget Fuses for Transformers

Designed to handle high inrush currents and the initial current cycle unique to transformers, these fuses provide comparable performance with a smaller footprint than standard size fuses.

UL Class CC Fast-Acting Midget Fuses

These fuses open circuits quickly when surges are detected.

UL Class RK5 Fuses

Also known as dual-element fuses, these time-delay fuses withstand current overload for a short time so they won't open when exposed to harmless temporary surges, such as when starting a motor.

UL Class J Time-Delay Fuses for Tight Spaces

Also known as dual-element fuses, these fuses withstand current overload for a short time so they won't open when exposed to harmless temporary surges, such as when starting a motor.

UL Class J Fast-Acting Fuses for Tight Spaces

These fuses open circuits quickly when surges are detected.

UL Class RK1 Time-Delay Fuses

Also known as dual-element fuses, these fuses withstand current overload for a short time so they won't open when exposed to harmless temporary surges, such as when starting a motor.

UL Class RK1 Fast-Acting Fuses

These fuses open circuits quickly when surges are detected.

UL Class K5 Fuses

Use these fast-acting fuses in applications where temporary overload current is not present, such as in lighting and heating.

UL Class T Fuses for Extra-Tight Spaces

Smaller than UL Class J fuses, these fast-acting fuses can be used in extra-tight spaces such as meters, uninterruptible power supplies, and variable-speed drives.

UL Class G Time-Delay Midget Fuses

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges, such as when starting a motor.

UL Class G Fast-Acting Midget Fuses

These fuses open circuits quickly when surges are detected.

UL Class H Replaceable-Element Fuses

Replace the current-carrying element rather than the entire fuse after the fuse breaks. These fuses are fast-acting.

Replacement Elements for UL Class
H Replaceable-Element Fuses

UL Class L High-Current Fuses

These time-delay fuses are suitable for high-current power applications.

Fast-Acting Glass-Tube Fuses

These fuses open circuits quickly when surges are detected.

Time-Delay Glass-Tube Fuses

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges, such as when starting a motor.

Time-Delay Ceramic-Tube Fuses

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges, such as when starting a motor.

Fast-Acting Ceramic-Tube Fuses

These fuses open circuits quickly when surges are detected.

Time-Delay Midget Fuses

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges, such as when starting a motor.

Fast-Acting Midget Fuses

These fuses open circuits quickly when surges are detected.

Fuses for Sensitive Electronics

With a quicker response than standard fast-acting fuses, these fuses provide the best protection for sensitive electronics.

Fuses for Multimeters

Compatible with most multimeters, including Fluke.

1,000V DC Fuses

Developed for the solar industry, these fuses meet the needs of high-voltage DC applications.

Automotive Fuses

These fuses are suitable for low-voltage automotive and other electronic applications.

Fast-Acting Lift Truck Fuses

These fuses open circuits quickly when surges are detected.

Time-Delay Lift Truck Fuses

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges, such as when starting a motor.

High-Current Automotive Fuses

Suitable for battery and alternator circuit protection, these fuses can handle higher current than standard automotive fuses.

European Fuses

Use these fuses with equipment made in Europe.

European Milk Bottle Fuses

Also known as diazed or Type D fuses.

Thermal Fuses

Also known as thermal cut-offs, these fuses prevent equipment from overheating by opening circuits to cut off power.

Touch-Safe Fuses

Prevent accidental contact with electrical circuits—these fuses have an enclosed design with recessed plug-in blades.

Fast-Acting Inline Fuses

Also known as LGR fuses, these fuses open circuits quickly when surges are detected.

Time-Delay Inline Fuses

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges.

Time-Delay Plug Base Fuses

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges, such as during equipment start-up.

Long-Time-Delay Plug Base Fuses

These fuses have a longer time delay than standard time-delay fuses. Use them in motor applications where the motor is cycled on and off frequently.

Fast-Acting Plug Base Fuses

These fuses open circuits quickly when surges are detected.

Fuse Assortments

Automotive Fuse Assortments

Keep a variety of blade-style automotive fuses on hand.

Automotive and Glass-Tube Fuse Assortments

Includes a variety of blade-style automotive fuses and fast-acting glass-tube fuses.

Glass-Tube and Ceramic-Tube Fuse Assortments

Maintain a supply of fast-acting and time-delay fuses.

About Fuses

Fuses

UL Class CC Time-Delay Midget Fuses for Motors

UL Class CC Time-DelayMidget Fuses for Transformers

UL Class CC Fast-Acting Midget Fuses

UL Class RK5 Fuses

UL Class J Time-Delay Fuses for Tight Spaces

UL Class J Fast-Acting Fuses for Tight Spaces

UL Class RK1 Time-Delay Fuses

UL Class RK1 Fast-Acting Fuses

UL Class K5 Fuses

UL Class T Fuses for Extra-Tight Spaces

UL Class G Time-Delay Midget Fuses

UL Class G Fast-Acting Midget Fuses

UL Class H Replaceable-Element Fuses

Replacement Elements for UL ClassH Replaceable-Element Fuses

UL Class L High-Current Fuses

Fast-Acting Glass-Tube Fuses

Time-Delay Glass-Tube Fuses

Time-Delay Ceramic-Tube Fuses

Fast-Acting Ceramic-Tube Fuses

Time-Delay Midget Fuses

Fast-Acting Midget Fuses

Fuses for Sensitive Electronics

Fuses for Multimeters

1,000V DC Fuses

Automotive Fuses

Fast-Acting Lift Truck Fuses

Time-Delay Lift Truck Fuses

High-Current Automotive Fuses

European Fuses

European Milk Bottle Fuses

Thermal Fuses

Touch-Safe Fuses

Fast-Acting Inline Fuses

Time-Delay Inline Fuses

Time-Delay Plug Base Fuses

Long-Time-Delay Plug Base Fuses

Fast-Acting Plug Base Fuses

Fuse Assortments

Automotive Fuse Assortments

Automotive and Glass-Tube Fuse Assortments

Glass-Tube and Ceramic-Tube Fuse Assortments

UL Class CC Time-Delay
Midget Fuses for Transformers

Replacement Elements for UL Class
H Replaceable-Element Fuses