Mersen ATQ2-1/4 Time Delay Midget Fuse 2.25A 500V

Product Description

The MERSEN ATQ2-1/4 is a time-delay midget fuse rated at 2.25 amps and 500 volts. Midget fuses in the ATQ series are designed to protect low-amperage branch circuits and control circuits from overcurrent conditions. The time-delay characteristic allows the fuse to tolerate brief inrush currents common in motor-start and transformer applications without nuisance opening, while still providing fast response to sustained fault current. Licensed electricians and HVAC technicians install this class of fuse in control panels, motor controllers, and disconnect blocks where compact fuse dimensions are required.

The ATQ2-1/4 is suited for residential and light commercial applications where 13/32-inch by 1-1/2-inch midget fuse holders are used. Typical installations include HVAC control circuit protection, small motor branch circuits, and industrial control panels requiring a 500-volt rated fuse with time-delay action. Its compact midget form factor fits standard Class CC and midget fuse blocks commonly found in equipment control boxes.

Key Features

• Time-delay action tolerates motor inrush and transformer magnetizing currents without nuisance opening
• 500-volt rating supports both single-phase and multi-phase low-voltage control circuits
• 2.25-amp (2-1/4 amp) current rating for precise low-amperage circuit protection
• Midget fuse form factor fits standard 13/32-inch by 1-1/2-inch fuse holders and blocks
• Suitable for HVAC control circuits, motor controllers, and industrial control panel applications

Compatibility

Designed as an OEM-style replacement for time-delay midget fuses used in residential and commercial HVAC control circuits and industrial motor control equipment requiring a 500-volt, 2.25-amp midget fuse.

Installation Notes

Installation must be performed by a qualified electrician or licensed HVAC technician in accordance with the National Electrical Code (NEC). Always de-energize and lock out the circuit before replacing a fuse. Verify the replacement fuse matches the ampere rating, voltage rating, and time-delay classification of the original fuse before installing. Never substitute a higher-amperage fuse in place of the specified rating.

Technical Specifications

• Amperage Rating: 2.25 amps (2-1/4 amps)
• Voltage Rating: 500 volts
• Fuse Type: Time Delay Midget
• UPC: 78200190603

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: ATQ2-1/4