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    Type HWA

    HWA SPDs

    Square D™ brand Surgelogic™ HWA surge protective devices are compact, nipple-mounted parallel-connected surge suppressors that come in a variety of voltage configurations, including Delta. HWA devices can be used in a network of surge suppression applications or as a stand-alone surge suppressor.

    Schneider Eletric Square D Picture
    Type HWA
    • Features



      • NEMA 4X Rated
      • High-energy suppression circuit that provides 10 modes of suppression from 50,000 to 100,000 peak Amps of surge current rating per phase
      • Each MOV is individually fused and incorporates patented overvoltage technology innovations that provide superior overvoltage withstand capability for systems with unstable power, without compromising transient clamping performance
      • EMI/RFI Noise Rejection can increase transient suppression
      • Equipped with LED Status Indication, which allows visual indication of the suppressor's status
      • Suppression Status Alarm allows multiple methods of alarm notification
      • Coordinated Fuse Technology allows disconnection methods for thermal and high-current events.
      • HWA SPDs mount directly to the panel through a nippled connection. They allow easy mounting near the circuit breaker in order to reduce lead lengths and improve surge suppression
      • Optional Remote Monitor and Flush mount Kit available


      • Suitable for installing indoors, outdoors, or in other harsh environments
      • Provides surge suppression to vulnerable equipment powered from weather-exposed panels
      • Longer product life and increased tolerance to unstable power conditions
      • Improves surge suppression to the equipment
      • Provides immediate response if suppressor is damaged
      • Provides immediate notification through audible and visual indication if reduced suppression occurs
      • Provides premium surge suppression while managing both thermal and overcurrent end-of-life events


      • Low Voltage Products & Systems
      • Building Automation & Control
      • Industrial Automation & Control
      • Critical Power, Cooling & Racks