Cooper Bussmann TL-20PK4 Type Tl Plug Fuse 20A 4 Pack

Product Description

The COOPER BUSSMANN TL-20PK4 is a Type TL plug fuse rated at 20 amps with a built-in time-delay function. Time-delay fuses are designed to handle brief inrush currents common in motor-loaded circuits without nuisance tripping, while still providing fast overcurrent protection when a true fault occurs. This fuse ships in a 4-pack configuration, making it a practical restocking option for electrical contractors and service technicians. It installs into standard Edison-base fuse sockets found in older residential load centers and fused disconnect boxes. Licensed electricians and HVAC technicians are the primary installers for this type of overcurrent protection device.

Type TL plug fuses are commonly used in residential electrical panels and fused service disconnects that have not been upgraded to breaker-style equipment. They are well-suited for branch circuits serving motor loads such as HVAC equipment, refrigeration units, pumps, and appliances where temporary inrush current would otherwise cause an instantaneous fuse to open unnecessarily. The time-delay characteristic makes TL fuses a direct fit for these motor-circuit applications while maintaining compliance with NEC overcurrent protection requirements.

Key Features

• 20-amp rating with time-delay response for motor-load branch circuits
• Type TL plug fuse design fits standard Edison-base fuse sockets
• Time-delay action tolerates motor inrush current without nuisance tripping
• 4-pack quantity supports efficient restocking for service calls
• Boxed packaging keeps fuses protected during transport and storage

Compatibility

Designed as an OEM-style replacement for Type TL plug fuse positions in residential Edison-base fuse panels and fused disconnects requiring 20-amp time-delay overcurrent protection.

Installation Notes

Installation must be performed by a qualified electrician in accordance with the NEC and applicable local codes. Always shut off the main disconnect and verify the circuit is de-energized before removing or installing fuses. Do not replace a fuse with a higher amperage rating than the circuit wiring is sized to carry. Ensure the fuse socket threads and contacts are clean and free of corrosion before installing the new fuse.