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

Applications

• Mains
• Feeders
• Large motors
• Lighting, heating & general loads
• Circuit breaker back-up
• DC rated: UPS DC links, battery disconnects, other DC applications

Approvals & Standards

• 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)
• UL listed

Specifications

• Rated voltage AC UL: 600 V
• Rated voltage DC UL: 500 V
• Ampere Rating: 1200 A
• ROHS Compliant: Yes
• Fuse Class: Class L
• Speed/Characteristic: Time Delay
• Mounting: Bolted
• AC Max I.R./Breaking Capacity: I1: 200 kA
• Connection/Terminal Material: Silver-Plated Copper
• Connection/Terminal Type: Blade
• Body/Insulating Material: GMG

Product Dimensions

• Product Weight: 4.55 lb
• Product Diameter: 2.5 in
• Product Length: 10.75 in

Packaging Dimensions

• Sell Pack Quantity: 1 Each
• Sell Pack Weight: 4.78 lb
• Sell Pack Width: 3.38 in
• Sell Pack Length: 11 in
• Sell Pack Height: 3.25 in

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