A4BY1200 FER

Amp-Trap® A4BY fuses have been the industry's favorite when it comes to protecting service entrance equipment, feeder circuits, and circuit breakers. The A4BY is a 100% rated device and may be applied at continuous currents up to its ampere rating. A 4 sec minimum time delay at 500% rating allows the A4BY to pass normal current surges and to coordinate with ground fault relays.

Mersen Amp-Trap® Time Delay Fuse, Current Limiting Low Voltage, Series: A4BY, Non-Indicating, Rejection, 1200 A, 600 VAC/300 VDC, 200/100 kA Interrupt, Class: L, 4 s at 500% Response, Blade Terminal, Bolted-On Mounting, Cylindrical Body, Dual Element, Fiber, 2-1/2 in Dia x 10-3/4 in L Body