A4BQ Time Delay/Class L

Amp-trap 2000 A4BQ fuses are 20% 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 500% of rated current) accommodates harmless inrush currents with no nuisance opening.

Features/Benefits

· Fastest operation under short circuit conditions: Let-thru currents are typically 20% 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 andlonger fuse life

· Easy 2-to-1 selectivity for prevention of nuisanceshutdowns and “blackouts”

(905) 458 7027

Class L Time Delay