Cooper Bussmann MDL-2-1/2-R Cartridge Time Delay Fuse 2.5A

Product Description

The COOPER BUSSMANN MDL-2-1/2-R is a cartridge-style, time delay fuse rated at 2.5 amps for use in low-current control circuits and sensitive electronic equipment. The glass body measures 1.25 inches in overall length and 0.25 inches in diameter, making it a standard miniature cartridge fuse format. The time delay characteristic allows brief inrush currents to pass without nuisance blowing, while still providing reliable overcurrent protection. Licensed electricians and electronics technicians install this fuse in panel boards, control circuits, instrumentation, and light commercial equipment requiring precise, repeatable protection at low amperage levels.

This fuse is suited for residential and light commercial applications where low-amperage circuit protection is required. Typical install scenarios include HVAC control boards, instrumentation panels, and electronic control equipment operating at up to 250 volts. The miniature cartridge form factor fits standard fuse holders and clips designed for the 0.25-inch diameter format. Its interrupting ratings cover both 250-volt and 125-volt circuits, making it versatile across a range of control and power applications.

Key Features

• Time delay design tolerates inrush currents without nuisance blowing
• Rated 2.5 amps with interrupting rating of 100 amps at 250 volts and 10,000 amps at 125 volts
• Glass body construction allows visual inspection for blown condition
• Miniature cartridge format: 1.25 inches OAL, 0.25 inches diameter
• Meets UL 248-14, CSA Class 1422-01, CE, RoHS 2002/95/EC, and MIL-STD-202 standards
• UL Listed under Guide JDYX File E19180

Compatibility

Designed as an OEM-style replacement miniature cartridge fuse for standard 0.25-inch diameter fuse holders and clips used in control circuits, instrumentation, and electronic equipment rated up to 250 volts.

Installation Notes

Installation should be performed by a qualified electrician or electronics technician in accordance with applicable NEC requirements. Always de-energize and lock out the circuit before replacing a fuse. Confirm the replacement fuse amperage and voltage rating match the original equipment specification before installing. Do not substitute a higher-amperage fuse in an attempt to clear repeated failures — identify and correct the root cause of the overcurrent condition first.