Fuse Amp-Trap 2000® 600V 100A Time-Delay Class L A4BQ Series

The Amp-Trap 2000® A4BQ fuse is designed for superior electrical protection in service entrance equipment and industrial applications. It is a Class L time-delay fuse rated at 600 volts and 100 amperes, suitable for mains, feeders, large motors, lighting, heating, general loads, and circuit breaker back-up. This fuse is also DC rated for UPS DC links, battery disconnects, and other DC applications. It is ideal for electrical distributors and switchgear suppliers seeking reliable protection and coordination in wire and cable systems.

Specifications

• Amperage Rating: 100 A
• Voltage Rating: 600 VAC / 500 VDC
• Interrupt Rating: 200 kA AC
• Fuse Class: Class L
• Mounting Type: Bolted
• Connection: Blade
• Dimensions (L x W x H): 8.63 in x 2 in x 2 in
• Diameter: 2 inches
• Product Weight: 2.44 lbs
• Insulation Material: GMG
• Manufacturer Part #: A4BQ100

Features

• 20% more current limiting than other Class L fuses, reducing short circuit let-thru current
• Built-in 4-second time-delay at 500% rated current to accommodate harmless inrush currents without nuisance opening
• Fastest operation under short circuit conditions with up to 40% lower let-thru energy
• Self-certified 300kA interrupting rating with UL witnessed tests
• Pure silver links for lowest let-thru current and extended fuse life
• Rejection-style design to prevent replacement errors
• High-visibility orange label for instant brand recognition
• Metal-embossed date and catalog number for traceability
• Fiberglass body ensures dimensional stability in harsh industrial environments
• High-grade silica filler for fast arc quenching
• Easy 2-to-1 selectivity to prevent nuisance shutdowns and blackouts
• Reduced inventory requirements by replacing older Class L fuse types

Downloads & Links

• Spec Sheet
• Drawings
• Spec Sheet FR
• Curves 1
• Curves 2