Cooper Bussmann MDL-5-R Cartridge Time Delay Fuse 5A

Product Description

The COOPER BUSSMANN MDL-5-R is a glass-body cartridge time-delay fuse rated at 5 amps. Designed for low-level overload protection, this miniature cartridge fuse absorbs temporary inrush currents without nuisance tripping, then opens the circuit under sustained fault conditions. It measures 1.25 inches in overall length and 0.25 inches in diameter, fitting standard miniature fuse holders found in control panels, HVAC equipment, and light electrical assemblies. Licensed electricians and HVAC technicians install this fuse when servicing equipment that requires a UL-listed, time-delay protective device in tight-space applications.

This fuse is suited for residential and light commercial control circuits, instrumentation panels, and electronic equipment where momentary inrush must be tolerated during startup. Its compact glass body allows visual inspection of the element without tools. The MDL-5-R is appropriate for 125-volt control circuit applications and retains interrupting capacity up to 10,000 amps at 125 volts, making it a reliable overcurrent device in low-voltage control wiring scenarios.

Key Features

• Time-delay action tolerates inrush current without nuisance tripping
• 5 amp rating suitable for low-current control circuits and instrumentation
• Glass body allows visual inspection of fuse element without removal
• Interrupting rating of 10,000 amps at 125 volts and 200 amps at 250 volts
• Meets UL 248-14, CE, CSA Class 1422-01, RoHS, and MIL-STD-202 requirements
• Miniature cartridge form factor fits standard 1/4 inch by 1-1/4 inch fuse holders

Compatibility

Designed as an OEM-style replacement miniature cartridge time-delay fuse for standard 0.25 inch by 1.25 inch fuse holders used in control boards, instrumentation equipment, and light electrical assemblies.

Installation Notes

Installation and replacement of control circuit fuses should be performed by a licensed electrician or qualified HVAC technician in accordance with the NEC and applicable local codes. Always de-energize and lock out the circuit before removing or installing a fuse. Verify the replacement fuse matches the original amperage, voltage, and time-delay rating before installation. Never substitute a higher-amperage fuse or bypass the fuse holder.