Fuse Amp-Trap 2000® 600V 1400A Time-Delay Class L A4BQ Series

The Fuse Amp-Trap 2000® A4BQ Series is a Class L time-delay fuse designed for electrical distributors and switchgear suppliers requiring reliable protection for mains, feeders, large motors, lighting, heating, and general loads. It also supports circuit breaker back-up and DC applications including UPS DC links and battery disconnects. This fuse offers superior current-limiting performance and built-in time-delay to accommodate harmless inrush currents without nuisance openings, ensuring maximum protection of downstream components in industrial and commercial electrical systems.

Specifications

• Amperage Rating: 1400 A
• Voltage Rating: 600 VAC, 500 VDC
• Interrupt Rating: 200 kA
• Fuse Class: Class L
• Dimensions (L x W x H): 10.75 in x 3 in x 3 in
• Diameter: 3 inches
• Mounting Type: Bolted
• Connection: Blade
• Insulation Material: GMG
• Product Weight: 5.97 lbs
• Manufacturer Part Number: A4BQ1400

Features

• 20% more current-limiting than other Class L fuses for superior protection
• 4-second time-delay at 500% rated current to accommodate inrush currents
• Fastest operation under short circuit conditions with up to 40% lower let-thru energy
• Self-certified UL witnessed 300kA interrupting rating for AC
• 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
• Reduced inventory needs by replacing all older Class L fuse types
• Metal-embossed date and catalog number for traceability
• Fiberglass body for dimensional stability in harsh industrial environments
• High-grade silica filler for fast arc quenching

Downloads & Links

• Drawings
• Spec Sheet
• Curves 1
• Curves 3
• Spec Sheet FR
• Curves 2