Merit Brass A4BY700 600V Class L Fuse

Product Description

The MERIT BRASS A4BY700 is a 600-volt Class L fuse designed for high-ampacity overcurrent protection in industrial and commercial electrical systems. Class L fuses occupy the upper range of the fuse classification system and are built for use in circuits where standard class ratings are insufficient. This fuse is installed by licensed electricians working on panelboards, switchboards, and motor control centers where reliable fault current interruption is required. Its physical dimensions and voltage rating make it a working component in demanding power distribution environments.

Class L fuses are commonly specified for commercial and industrial installations where high available fault current demands a robust interrupting rating. This fuse is appropriate for use in distribution panels, motor branch circuits, and feeder protection applications. It ships one per pack, making it straightforward to order in the exact quantity needed for a service call or panel build-out.

Key Features

• 600-volt rating suitable for commercial and industrial power distribution circuits
• Class L form factor for high-ampacity applications requiring increased interrupting capacity
• Compact package at 8.750 inches x 2.500 inches x 2.380 inches for fit-verified installation
• Ships individually — one fuse per pack for precise quantity ordering
• Substantial 3.950-pound construction consistent with Class L fuse build standards

Compatibility

Designed as an OEM-style replacement Class L fuse for use in 600-volt-rated fusible disconnect switches, switchboards, and panelboards sized for Class L fuse blocks.

Installation Notes

Class L fuses are installed by licensed electricians in accordance with NEC Article 240 and equipment manufacturer specifications. Always de-energize and lock out the circuit at the upstream disconnect before handling or replacing fuses. Use properly rated fuse pullers rated for the ampacity and voltage class being serviced. Verify that the replacement fuse ampere rating matches the circuit overcurrent protection requirements before energizing.

Technical Specifications

• Voltage Rating: 600 volts
• Fuse Class: Class L
• Length: 8.750 inches
• Width: 2.500 inches
• Height: 2.380 inches
• Weight: 3.950 pounds
• Quantity per Pack: 1
• UPC: 78200193909

Standard Information

• Brand: MERIT BRASS
• Manufacturer Part Number: A4BY700