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    Type SDSA 3-Phase

    SDSA2040, 4040 & 3650 SPDs

    Square D™ brand Surgelogic™ SDSA 3-Phase products are compact and affordable Surge Protective Devices (SPDs) available in Wye and Delta configurations. SDSA 3-Phase SPDs offer a simple means to bring down initial surges to manageable levels and can offer additional value in a cascaded SPD system. Their compact design allows surge suppression to be installed adjacent to power panels or directly on sensitive equipment.

    Schneider Eletric Square D Picture
    Type SDSA 3-Phase
    • Features

      • Type 1 rated devices provide the flexibility to be used with or without an Overcurrent Protection Device (OCPD)
      • LEDs indicate operational status
      • Short circuit current rating 200kA
      • Suitable for indoor and outdoor application (NEMA Type 4X rated)
      • Convenient back-nipple mounting
      • Field-proven MOV design provides response time less  than 50 nanoseconds and provides lower clamping voltage than traditional gas tube arresters
      • Coordinated Fuse Technology


      • Provide surge suppression to vulnerable equipment powered from weather exposed panels
      • Transient suppression is located at the most efficient connection point
      • Allows for flexibility in installation locations
      • Allows immediate indication if suppressor requires replacement
      • Provide premium surge suppression while managing thermal effects from MOV end of life


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