Amp-Trap 2000 A4BQ fuses are 20 percent more current limiting than any other Class L fuse on the market. When correctly coordinated, they bring a superior level of protection to service entrance equipment. Downstream circuit components have maximum protection against short circuit let-thru current. A4BQ's built-in 4-second time-delay characteristic (at 500percent of rated current) accommodates harmless inrush currents with no nuisance opening. 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
Amp-Trap 2000 A4BQ fuses are 20 percent more current limiting than any other Class L fuse on the market. When correctly coordinated, they bring a superior level of protection to service entrance equipment. Downstream circuit components have maximum protection against short circuit let-thru current. A4BQ's built-in 4-second time-delay characteristic (at 500percent of rated current) accommodates harmless inrush currents with no nuisance opening.
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
