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  • Welder Protectors
  • A4BX

    Mersen A4BX 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. Read more

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