Mersen A4BQ3000 Class L Fuse 3000A 600V

Product Description

The MERSEN A4BQ3000 is a Class L current-limiting fuse rated for 3000 amps at 600 volts AC. Class L fuses are designed for high-ampacity branch circuit and feeder protection in industrial and commercial electrical systems. This fuse interrupts fault currents quickly, limiting let-through energy to protect downstream equipment such as switchgear, panelboards, and large motor starters. Licensed electricians install this fuse in high-capacity applications where standard fuse classes do not meet the required ampere rating. The 600-volt rating covers the full range of common three-phase distribution voltages used in North American commercial and industrial facilities.

The A4BQ3000 is suited for use in industrial plants, commercial buildings, data centers, and utility service entrance equipment where high-fault-current protection is required. It is installed in Class L fuse holders and fused disconnect switches designed to accept the bolted-style Class L form factor. This fuse is appropriate for protecting large conductors, transformers, and motor branch circuits operating at or below 600 volts AC.

Key Features

• 3000-amp continuous current rating for high-capacity feeder and branch circuit protection
• 600-volt AC rating covers standard North American three-phase distribution systems
• Class L designation provides current-limiting action to reduce fault energy let-through
• Bolted-style Class L form factor fits standard Class L fusible disconnects and holders
• Suitable for branch circuit, feeder, and service entrance overcurrent protection

Compatibility

Designed as an OEM-style replacement for Class L fusible disconnects and fuse holders rated for 3000-amp, 600-volt service in commercial and industrial electrical distribution equipment.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit ahead of the fuse holder before removing or installing this fuse. Verify that the fuse holder is rated for Class L fuses at 3000 amps and 600 volts before installation. Do not substitute a fuse of a different class, voltage rating, or ampere rating in the same holder.

Technical Specifications

• Ampere Rating: 3000 amps
• Voltage Rating: 600 volts AC
• Fuse Class: Class L
• UPC: 78200193014

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: A4BQ3000