Fuse Amp-Trap 2000® 600V 450A Time-Delay Class L A4BQ Series

Fuse Amp-Trap 2000® 600V 450A Time-Delay Class L A4BQ Series The Fuse Amp-Trap 2000® A4BQ Series is a Class L time-delay fuse designed for superior electrical protection in mains feeders, large motors, lighting, heating, and general loads. It is suitable for use as circuit breaker back-up and DC rated applications including UPS DC links and battery disconnects. This fuse offers enhanced current limiting capabilities to protect downstream circuit components from short circuit let-thru current, making it a reliable choice for electrical distributors and switchgear suppliers seeking robust lighting and wire and cable protection solutions. Specifications Amperage Rating: 450 A Voltage Rating: 600 V AC, 500 V DC Interrupt Rating: 200 kA Fuse Class: Class L Mounting Type: Bolted Connection: Blade Dimensions: Length 8.63 in, Width 2 in, Height 2 in, Diameter 2 in Insulation Material: GMG Product Weight: 2.44 lbs Manufacturer Part Number: A4BQ450 Manufacturer: Mersen Features 20% more current limiting than other Class L fuses for enhanced protection 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 compared to other Class L fuses 300kA interrupting rating, self-certified 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 Fiberglass body for dimensional stability in harsh industrial environments Metal-embossed date and catalog number for traceability and lasting identification Recommended for arc flash energy reduction Compatible with recommended fuse blocks P48F (100-800A) and P412F (801-1200A) Downloads & Links Spec Sheet Drawings Spec Sheet FR Curves 1 Curves 2