Fuse Amp-Trap 2000® 600V 900A Time-Delay Class L A4BQ Series

Fuse Amp-Trap 2000® 600V 900A Time-Delay Class L A4BQ Series The Fuse Amp-Trap 2000® A4BQ Series provides advanced current-limiting protection for electrical distribution systems, suitable for mains, feeders, large motors, lighting, heating, and general loads. Designed by Mersen, this Class L fuse offers a time-delay feature that accommodates harmless inrush currents, making it ideal for use in lighting solutions, wire and cable protection, and as a switchgear supplier component. Its robust construction and high interrupt rating ensure reliable performance in both AC and DC applications, including UPS DC links and battery disconnects. Specifications Manufacturer: Mersen Manufacturer Part #: A4BQ900 Fuse Class: Class L Voltage Rating: 600 VAC / 500 VDC Amperage Rating: 900 A Interrupt Rating: 200 kA Mounting Type: Bolted Connection: Blade Insulation Material: GMG Dimensions: Length 10.75 in, Width 2.5 in, Height 2.5 in, Diameter 2.5 in Product Weight: 4.29 lbs Features 20% more current limiting than other Class L fuses, providing superior protection against short circuit let-thru current Built-in 4-second time-delay at 500% rated current to prevent nuisance opening during harmless inrush currents 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 Reduced inventory needs by replacing all older types of Class L fuses currently 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