Eaton MDQ-1 Time-delay Fuse 250V Small Dimension

Product Description

The EATON MDQ-1 is a 250-volt, small-dimension time-delay fuse designed for motor and dimmer protection in residential and light commercial electrical applications. Time-delay fuses allow brief inrush currents during motor startup without nuisance blowing, then open the circuit decisively under sustained overload conditions. Weighing just 0.02 pounds, the MDQ-1 is a compact, single-element fuse suitable for tight fuseholder applications. Licensed electricians and qualified service technicians are the typical installers for this type of protective device.

The MDQ-1 is used in applications requiring a small-dimension fuse footprint, including lighting dimmer circuits, small motor controls, and supplemental branch-circuit protection panels. Its time-delay characteristic makes it appropriate for loads with moderate startup inrush, such as single-phase motors in HVAC equipment, fan assemblies, and transformer circuits rated at or below 250 volts. This fuse is suited for both new installations and direct replacement of worn or blown fuses in existing equipment.

Key Features

• Time-delay design handles motor inrush without nuisance blowing
• 250-volt rating suitable for standard single-phase branch circuits
• Small-dimension form factor fits compact fuseholders
• Lightweight at 0.02 pounds for easy handling and inventory
• Single-element construction for straightforward replacement

Compatibility

Designed as an OEM-style replacement for small-dimension time-delay fuse positions rated at 250 volts in residential and light commercial electrical panels, motor controls, and dimmer assemblies.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC guidelines. Always de-energize and lock out the circuit before removing or installing a fuse. Confirm that the replacement fuse matches the original ampere rating, voltage rating, and physical size before seating it in the fuseholder. Never substitute a fuse with a higher ampere rating than the circuit is designed to carry.

Technical Specifications

• Voltage Rating: 250 volts
• Fuse Type: Time-Delay
• Dimension Class: Small Dimension
• Weight: 0.02 pounds
• UPC: 05171218312

Standard Information

• Brand: EATON
• Manufacturer Part Number: MDQ-1