Mersen A4BQ900 Fuse A4BQ - Class L - Time-Delay 600VAC 500VDC 900A Blade

Product Description

The MERSEN A4BQ900 is a Class L, time-delay fuse with a blade connection, designed for 600VAC and 500VDC applications. With an amperage rating of 900A, this Amp-Trap 2000 fuse is ideal for mains feeders, large motors, lighting, heating, general loads, and circuit breaker backup. It is also suitable for DC applications such as UPS and battery disconnects.

• Fastest operation under short circuit conditions with typically 20% lower let-thru currents.
• Time-delay feature accommodates high inrush loads without nuisance tripping.
• Recommended for arc flash energy reduction.

Product Highlights

The MERSEN A4BQ900 fuse provides superior protection with its current-limiting design and time-delay functionality, ensuring reliable performance in various applications.

Product Information

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: A4BQ900
• Country of Origin: Mexico

Technical Specifications

• Catalog Number: A4BQ900
• Manufacturer: Mersen
• Brand: Mersen
• Sub Brand: Amp-Trap 2000®
• Country of Origin: Mexico
• Made in USA: No
• Amperage Rating: 900 A
• Application: Mains Feeders Large motors Lighting, heating & general loads Circuit breaker back-up DC rated: UPS DC links, battery disconnects, other DC applications
• Connection: Blade
• Interrupt Rating: 300 kA
• Mounting: Bolt
• Special Features: Fastest operation under short circuit conditions: Let-thru currents are typically 20 percent lower, with a corresponding let-thru energy (clearing I2t) up to 40 lower than the next fastest Class L fuse Time-delay for high inrush loads such as motors and transformers, without nuisance opening 300kA interrupting rating - self-certified, UL witnessed tests Most current-limiting for lowest peak let-thru current even at fault currents up to 300kA Recommended for Arc Flash energy reduction Pure silver links ensure lowest let-thru current and longer fuse life Easy 2-to-1 selectivity for prevention of nuisance shutdowns and “blackouts” Rejection-style design prevents replacement errors High-visibility orange label gives instant brand recognition Reduced inventory because A4BQ can replace all older types of Class L fuses now in-service Metal-embossed date and catalog number for traceability and lasting identification Fiberglass body provides dimensional stability in harsh industrial settings High-grade silica filler ensures fast arc quenching Optional mechanical TA indicator (100-6000A). Please contact factory for special trigger actuator
• Standard: A4BQ (100-6000) UL listed to standard 248-10 File E2137 DC listed to UL standard 248 (100-2000A) CSA certified to standard C22.2 No. 248.10 (601-6000A) A4BQ (100-6000) - TA UL listed
• UPC: 782001930059
• GTIN: 00782001930059
• Item Type: Class L
• Voltage Rating: 600 VAC, 500 VDC
• Pack Size: 1
• Fuse Class: Class L
• Body Style: Rejection
• Mounting Type: Bolt-On
• Terminal Connection: Blade
• Contact Material: Silver-Plated Copper
• Construction: GMG