Merit Brass A4BQ700 600V Class L Fuse

Product Description

The MERIT BRASS A4BQ700 is a 600-volt Class L fuse designed for high-current overcurrent protection in industrial and commercial electrical systems. Class L fuses are current-limiting, time-delay fuses rated for 601 amps and above, commonly installed in panelboards, switchboards, and motor control centers where high fault-current interrupting capacity is required. The A4BQ700 provides reliable branch-circuit and feeder protection and is handled and installed by licensed electricians working in commercial, industrial, and heavy-duty residential applications.

Class L fuses at the 700-amp rating are typically used in large commercial or industrial installations where feeder circuits or service-entrance equipment must be protected against sustained overloads and high-magnitude short-circuit currents. This fuse fits bolted-style Class L fuseholders designed for the 600-volt, high-amperage range. It is suited for motor branch circuits, transformer protection, and main service applications where NEC-compliant overcurrent protection is required.

Key Features

• 600-volt rating suitable for commercial and industrial power distribution systems
• Class L designation indicates current-limiting performance with high interrupting capacity
• 700-amp continuous current rating for large feeder and service-entrance applications
• Time-delay characteristics help prevent nuisance trips on motor inrush currents
• Bolted-style terminations standard to Class L fuse form factor

Compatibility

Designed as an OEM-style replacement for Class L fuseholders rated at 600 volts and 700 amps in commercial and industrial panelboards, switchboards, and motor control centers.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lockout/tagout the circuit completely before removing or installing any fuse. Class L fuses require a matching Class L fuseholder rated for the voltage and amperage of the fuse. Verify the fuseholder is rated for the available fault current at the point of installation before placing the fuse in service.

Technical Specifications

• Voltage Rating: 600 volts
• Amperage Rating: 700 amps
• Fuse Class: Class L
• UPC: 78200193002

Standard Information

• Brand: MERIT BRASS
• Manufacturer Part Number: A4BQ700