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|MFG Part #:||A4BY800|
|Brand Name:||Ferraz Shawmut|
|Online Part #:||30581|
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 percent rated device and may be applied at continuous currents up to its ampere rating. A 4-second minimum time delay at 500 percent rating allows the A4BY to pass normal current surges and to coordinate with ground fault relays. 600 Volts 800 amps A4BY series.