A4BX - Welder Protector

The A4BX - Welder Protector is part of the Mersen (formerly Ferraz Shawmut) special purpose fuses line, distributed by Gross Automation.

Ferraz Shawmut Welder Protectors are special purpose limiters used to provide isolation of faulted welding equipment and protection for the cable drop supplying the welder. Welder Protectors have a high thermal capacity and are less affected by high ambient temperatures and extended weld times than similar size Class J, K, or R fuses*. Welder Protectors should only be applied for isolation of short circuited welding circuits. Overload protection must be provided for by other means.