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ASCO Model 331 Surge Protective Device

120/240 VAC | 80 kA/Phase

The ASCO Model 331 (Edco® EMC-240B) Surge Protective Device is designed to protect AC distribution panel circuits or 120 V power supplies feeding sensitive electronic equipment. Electrically, the unit incorporates MOV and thermal fusing technology.

ASCO Model 331 Surge Protective Device
  • Features

    • Fast response time
    • 40,000 A per phase capacity
    • UL 1449 listed 


    • Fail-safe and fused
    • Operational status indicators
    • 5-year warranty  


    • Transportation

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