Cooper Bussmann S505-10-R Cartridge Time Delay Fuse 10A

Product Description

The COOPER BUSSMANN S505-10-R is a ceramic cartridge time delay fuse rated at 10 amps, designed for overcurrent protection in control circuits, instrumentation, and low-voltage electronics. The mini cartridge body measures 5 mm in diameter and 20 mm in overall length. Time delay construction allows temporary inrush currents to pass without nuisance tripping while still clearing sustained overloads and short circuits. The ceramic body provides reliable arc interruption and thermal stability. Electricians and electronics technicians install this fuse in fuse holders and fuse blocks where IEC 60127-2 compliant protection is required.

This fuse is suited for residential and light commercial control panels, HVAC low-voltage circuits, printed circuit board assemblies, and instrumentation equipment. The 5 mm x 20 mm form factor is a widely used international standard size, making it a common replacement in imported equipment, controls, and appliances. Its time delay characteristic makes it appropriate for motor control circuits and transformer primaries where brief startup surges must be tolerated without blowing the fuse prematurely.

Key Features

• 10 amp time delay rating tolerates inrush current without nuisance tripping
• Ceramic body provides arc suppression and high thermal resistance
• Mini cartridge form factor: 5 mm diameter x 20 mm overall length
• Meets IEC 60127-2 and carries BSI, CCC, CSA, KC-Mark, and CQC certifications
• UNSPSC Code 39121605 for procurement and catalog classification

Compatibility

Designed as an OEM-style replacement for 5 mm x 20 mm mini cartridge fuse holders and fuse blocks requiring a 10 amp time delay fuse per IEC 60127-2.

Installation Notes

This fuse is installed by licensed electricians or qualified electronics technicians. Always de-energize the circuit and verify zero voltage with a meter before removing or installing any fuse. Use an appropriately rated fuse puller when removing the fuse from a holder to avoid contact with live parts. Confirm the replacement fuse matches the amperage, voltage rating, and time delay characteristic specified on the equipment nameplate or schematic.