Allpoints 1504804 Time Lag Fuse 4A 600V SC-4

Product Description

The ALLPOINTS 1504804 is a time lag (slow-blow) fuse rated at 4 amps and 600 volts, built to UL Style SC-4 specifications. It measures 13/32 inches in diameter by 1-5/16 inches in length, placing it in the standard SC-4 midget fuse form factor. Time lag fuses are designed to tolerate brief inrush currents without nuisance tripping while still providing reliable overcurrent protection. This fuse is installed by licensed electricians and qualified service technicians working on commercial foodservice equipment, HVAC controls, and light industrial electrical panels where sustained overload protection is required.

The SC-4 form factor is commonly found in midget fuse holders and fusible disconnect blocks used in commercial kitchen equipment, refrigeration controls, and low-amperage branch circuit protection applications. The 600-volt rating makes it suitable for both single-phase and three-phase low-current control circuits. It is sold as a single unit and is a direct replacement for worn or blown SC-4 style fuses in the field.

Key Features

• Time lag (slow-blow) design tolerates motor inrush and transformer startup currents without nuisance trips
• 4 amp current rating with 600-volt maximum voltage rating
• UL Style SC-4 midget fuse construction
• Compact 13/32 inches x 1-5/16 inches body fits standard SC-4 midget fuse holders
• Gray color coding for quick visual identification in the field
• Single-unit packaging for targeted replacement use

Compatibility

Designed as an OEM-style replacement for SC-4 midget fuse holders rated for 4 amp, 600-volt time lag applications in commercial foodservice, refrigeration, and HVAC control circuits.

Installation Notes

Installation should be performed by a licensed electrician or qualified service technician. Always de-energize and lockout/tagout the equipment before replacing any fuse, per NFPA 70E safe work practices. Verify that the replacement fuse matches the original amp rating, voltage rating, and time-delay classification before installing. Never substitute a higher-amp fuse or a fast-acting fuse in a circuit designed for time lag protection.