Fuse Amp-Trap 2000® 600V 1200A Time-Delay Class L A4BQ Series

Fuse Amp-Trap 2000® 600V 1200A Time-Delay Class L A4BQ Series The Amp-Trap 2000 A4BQ fuse is a time-delay Class L fuse designed for superior protection in electrical distribution systems. It is suitable for applications including mains, feeders, large motors, lighting, heating, general loads, circuit breaker back-up, and DC rated uses such as UPS DC links and battery disconnects. This fuse offers enhanced current limiting to reduce short circuit let-thru current, protecting downstream components and service entrance equipment effectively. The built-in 4-second time-delay characteristic accommodates harmless inrush currents without nuisance opening, making it ideal for high inrush loads like motors and transformers. As a product from a leading switchgear supplier, it supports reliable and safe electrical distribution and lighting solutions. Specifications Amperage Rating: 1200 A Voltage Rating: 600 VAC, 500 VDC Interrupt Rating: 200 kA Fuse Class: Class L Mounting Type: Bolted Connection: Blade Diameter: 2.5 inches Insulation Material: GMG Product Weight: 0.5 lb Manufacturer: Mersen Manufacturer Part #: A4BQ1200 Features 20% more current limiting than any other Class L fuse on the market 4-second time-delay at 500% of rated current to prevent nuisance openings Fastest operation under short circuit conditions with up to 40% lower let-thru energy 300kA interrupting rating, self-certified and UL witnessed 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 in service 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 Downloads & Links Curves 3 Spec Sheet Curves 1 Drawings Spec Sheet FR Curves 2