Cooper Bussmann S501-10-R Fast-acting Cartridge Fuse 10A

Product Description

The COOPER BUSSMANN S501-10-R is a ceramic-body, fast-acting cartridge fuse rated at 10 amps and 250 volts. It measures 20 mm (approximately 0.787 inches) in overall length and 5 mm (approximately 0.197 inches) in diameter, conforming to the IEC 60127-2 miniature fuse form factor. Designed for overcurrent protection in control circuits, instrumentation, and low-voltage electronics, this fuse responds rapidly to fault current without intentional delay. Licensed electricians, HVAC technicians, and electronics service professionals install this style of fuse wherever a glass or ceramic cartridge mini fuse is specified in a panel, PCB holder, or inline fuse block.

The S501-10-R suits residential and light commercial applications where a fast-acting mini cartridge fuse is required to protect sensitive control boards, low-voltage circuitry, and instrumentation equipment. Its ceramic body handles higher fault-interrupt demands than equivalent glass-body fuses of the same size, making it a common choice for industrial control panels, HVAC equipment control circuits, and electronic test equipment. Always verify the amperage and voltage rating of the fuse being replaced before installing.

Key Features

• Fast-acting response for immediate overcurrent interruption with no intentional time delay
• Ceramic body construction supports higher fault-interrupt capacity compared to glass-body equivalents
• Rated 10 amps at 250 volts for use in a wide range of low-voltage control and instrumentation circuits
• Mini cartridge form factor: 20 mm overall length by 5 mm diameter per IEC 60127-2
• Multi-standard certified including cURus, CSA, IEC 60127-2, CCC, BSI, IMQ, and SEMKO approvals

Compatibility

Designed as an OEM-style replacement for IEC 60127-2 5x20 mm miniature fast-acting cartridge fuse positions rated up to 10 amps and 250 volts.

Installation Notes

Installation and replacement of fuses in control panels or circuit boards should be performed by a qualified electrician or licensed technician. De-energize and lock out the circuit before removing or installing any fuse. Confirm the replacement fuse matches the original amperage, voltage, and timing characteristics exactly — substituting a higher-rated or slow-blow fuse where a fast-acting type is specified can damage downstream components or void equipment warranties. Follow applicable NEC and local electrical codes when servicing fused control circuits.