Merit Brass A2D60R Time Delay Fuse 60A 250V RK1

Product Description

The MERIT BRASS A2D60R is a time delay fuse rated at 60 amps and 250 volts, classified as RK1 for high-performance overcurrent protection. Time delay fuses of this type are designed to withstand temporary inrush currents during motor starting or transformer energizing without nuisance tripping, while still providing fast response to sustained overloads and short circuits. Licensed electricians and industrial maintenance technicians install this fuse type in motor circuits, HVAC disconnect boxes, and general-purpose branch circuits where equipment startup draws briefly exceed steady-state current.

This fuse is suited for residential and light commercial electrical panels, motor control centers, and disconnect switches where RK1-class protection is specified. The RK1 classification indicates a rejection-style fuse holder is required, preventing installation of lower-rated fuse classes in the same fuseholder. This makes it a common choice in HVAC disconnect boxes protecting compressors, blower motors, and other inductive loads that produce significant startup current.

Key Features

• 60 amp continuous current rating for motor and branch circuit protection
• 250 volt AC rating suitable for single-phase and three-phase applications
• RK1 class designation with rejection feature to prevent mismatched fuse substitution
• Time delay design tolerates motor inrush without nuisance tripping
• Packaged 10 per pack for service stock or installation crews

Compatibility

Designed as an OEM-style replacement for RK1-class time delay fuses in 250-volt motor disconnect and branch circuit applications. Requires an RK1-rated fuseholder.

Installation Notes

Installation must be performed by a licensed electrician in accordance with NEC Article 240 and any applicable local codes. De-energize and lock out the circuit at the panel or disconnect before removing or installing fuses. Verify the fuseholder is rated for RK1-class fuses and that the circuit ampacity is appropriate for the 60-amp rating. Never install a fuse with a higher ampere rating than the circuit or equipment manufacturer specifies.

Technical Specifications

• Amperage: 60 amps
• Voltage: 250 volts
• Fuse Class: RK1
• Fuse Type: Time Delay
• Package Quantity: 10 per pack
• Dimensions (L x W x H): 4.25 inches x 3.12 inches x 1.69 inches
• Weight: 1.47 pounds
• UPC: 78200199094

Standard Information

• Brand: MERIT BRASS
• Manufacturer Part Number: A2D60R