Cooper Bussmann MDQ-2 Cartridge Time Delay Fuse 2A Mini

Product Description

The COOPER BUSSMANN MDQ-2 is a glass-body cartridge time delay fuse rated at 2 amps. It belongs to the mini fuse form factor, measuring 1.25 inches overall length and 0.25 inches in diameter. The dual-element, time delay design absorbs brief inrush currents without nuisance tripping while still providing reliable overcurrent protection under sustained fault conditions. Electricians and electronics technicians install this fuse in control circuits, instrumentation panels, and low-current branch circuits where a standard fast-blow fuse would trip on normal startup surges. Its compact glass body allows quick visual inspection of the element without removing the fuse from the holder.

The MDQ-2 is suited for residential and light commercial control panels, HVAC low-voltage circuits, small motor control applications, and instrumentation enclosures. The time delay characteristic makes it a common choice wherever motor inrush or transformer magnetizing current would otherwise cause nuisance failures with a fast-acting fuse. The 2-amp rating fits low-current secondary circuits typically found in 24-volt control wiring and signal circuits.

Key Features

• 2-amp time delay rating handles inrush without nuisance tripping
• Mini cartridge form factor: 1.25 inches OAL x 0.25 inches diameter
• Glass body allows visual element inspection without removal
• Dual-element construction provides precise time delay response
• UL Listed 248-14 and CSA Class 1422-01 Component Accepted

Compatibility

Designed as an OEM-style replacement mini cartridge time delay fuse for standard 0.25-inch diameter fuse holders used in low-current control and instrumentation circuits.

Installation Notes

Installation of control circuit fuses is typically performed by a licensed electrician in accordance with NEC requirements. De-energize and lock out the circuit before removing or installing any fuse. Confirm the replacement fuse amperage, voltage rating, and time delay characteristics match the original specification before installing. Never substitute a higher-amperage fuse or a fast-blow type in a position calling for a time delay fuse.