Eaton MDQ-12 Time Delay Fuse 250V Small Dimension

Product Description

The EATON MDQ-12 is a small-dimension, time-delay fuse rated for 250 volts. Time-delay fuses are designed to tolerate brief inrush currents without nuisance opening, while still providing reliable overcurrent protection under sustained fault conditions. The MDQ-12 fits into compact fuse blocks and holders where space is limited. It is commonly installed by electricians working on motor loads, HVAC controls, and light-commercial or residential electrical panels where a small-body fuse is required and a degree of time-delay performance is needed.

The MDQ-12 is suited for applications requiring a small-dimension fuse body with time-delay characteristics. Typical use cases include motor control circuits, transformer secondaries, and branch-circuit protection in HVAC equipment and light-commercial control panels. Its compact form factor makes it a practical fit in tight enclosures and fuse holders designed for small-body fuse configurations.

Key Features

• Time-delay design tolerates motor inrush and transformer magnetizing currents without nuisance opening
• Rated 250 volts for compatibility with standard single-phase branch circuits
• Small-dimension body fits compact fuse blocks and holders where space is limited
• Lightweight at 0.007 pounds for easy handling and minimal load on fuse holder terminals

Compatibility

Designed as an OEM-style replacement for small-dimension time-delay fuse applications rated at 250 volts in residential and light-commercial electrical and HVAC control circuits.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements. Always de-energize and lock out the circuit before replacing any fuse. Verify that the replacement fuse rating matches the circuit requirements before restoring power. Do not install a fuse with a higher rating than the circuit is designed to carry.