Cartridge Fuses | McMaster-Carr

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	Current Current

	Manufacturer Equivalent Manufacturer Equivalent

	Voltage Voltage

	Fuse Type Fuse Type	Show

	Cartridge

	Fuse Type Fuse Type	Hide


Cartridge	Glass

Ceramic	Automotive

European	Touch Safe

Thermal	Plug Base

Inline

	Protection Type Protection Type

Time Delay

Fast Acting

	Overall Length Overall Length

	Overall Diameter Overall Diameter

	UL Class UL Class

RK5

RK1

	Breakthrough Current Breakthrough Current

	Cartridge Fuse Style Cartridge Fuse Style

Ferrule

Knife Blade

	Blown Fuse Indicator Blown Fuse Indicator

Yes

	Number of Elements Number of Elements

	Specifications Met Specifications Met

CSA

CE Marked

IEC

	Rejection-Style End Rejection-Style End

Yes

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	UL File Number UL File Number

E4273

E2137

	CSA File Number CSA File Number

053787_C_000

012636_0_000

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Indicator Type Indicator Type

Dot

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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.

UL Class L High-Current Fuses

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

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.

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

UL Class L High-Current Fuses

Time-Delay Midget Fuses

Fast-Acting Midget Fuses

Fuses for Sensitive Electronics

Fuses for Multimeters

1,000V DC Fuses

UL Class CC Time-Delay
Midget Fuses for Transformers