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Type HWA

HWA Series are surge suppressors and noise filters in compact and affordable packages which can be installed adjacent to power panels or directly on sensitive equipment in harshelectrical conditions.

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
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