Mersen A4BY Series 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 100percent rated device and may be applied at continuous currents up to its ampere rating. A 4-second minimum time delay at 500percent rating allows the A4BY to pass normal current surges and to coordinate with ground fault relays. Other Names: A4BY1200, A4BY 1200 Amp, A4BY-1200, A4BY 1200A, A4BY1200A, A4BY-1200A, A4BY 1200 Manufacturer Mersen Ampere 1200 A Voltage Rating 600VAC, 300VDC Interrupt Rating 200kA.I.R. AC, 100kA I.R. DC Speed Time Delay Class Class L Datasheet Product Specifications Item Weight 4.5 lb Other names A4BY1200, A4BY 1200 Amp, A4BY-1200, A4BY 1200A, A4BY1200A, A4BY-1200A, A4BY 1200
