SPDee  Surge Protector

The Next Generation Surge Protective Device (SPD) designed for UL 1449 Fourth Edition

The unit is a perfect replacement to the obsolete surge arrestor. The SPDee Series surge protectors utilize large Block 50kA Thermal Protected MOVs with surge current levels of 50kA per mode. With a small, compact design and line or load side installation flexibility, this surge protector device (SPD) can be installed anywhere in any electrical distribution system. SPDee can be used in a variety of applications due to its Type 1/Type 2 Listing and innovative Tri-Mount installation design.


  • UL 1449 Fourth Edition Listed
  • 50kA per mode rating
  • All UL required OCP & Safety Coordination included inside:
    - Type 1 SPDs intended for Line or Load Side of Main Disconnect
    - Type 2 SPDs intended for Load Side of Main Disconnect
  • 20kA Inominal (In) (most models)
  • 200kA SCCRs (most models)
  • UL 96A Lightning Protection Master Label compliant
  • Large Block 50kA Thermal Protected MOVs
  • Phase Loss Monitoring (toggles LED & Dry Contacts)
  • Standard NEMA 4X Polycarbonate Enclosure
  • Tri-Mount Installation Kit Included (Pipe Nipple, Bracket, Din-Rail)
  • Voltage Specific Design – Highly configurable
  • All MOV suppression elements monitored


  • 2 Year Warranty (longer optional)
  • Burn-in Tested Prior to Shipment


  • Audible Alarm with Dry Contacts


  • Commercial buildings with general office equipment
  • Residential
  • Switchgear
  • Transportation Cabinets
  • CNC Machines
  • Pumps
  • Motors
  • Control Panels
  • LED Signs
  • HVAC (Chillers) Equipment
  • Data Centers
  • Audio / Video Equipment
  • Lighting Poles
  • Fire Alarm Control Panels
  • Motor Control Centers
  • Automatic Transfer Switches
  • Generators
  • Medical Equipment/Facilities
S50A120V1P, S50A120V1PN, S50A120V2P, S50A120V2PN, S50A120V3Y, S50A120V3YN, S50A127V1P, S50A127V1PN, S50A127V2P, S50A127V2PN, S50A127V3Y, S50A127V3YN, S50A220V1P, S50A220V1PN, S50A220V3Y, S50A220V3YN, S50A240V3H, S50A240V3HN, S50A240V1P, S50A240V1PN, S50A240V3D, S50A277V1P, S50A277V1PN, S50A277V2P, S50A277V2PN, S50A277V3Y, S50A277V3YN, S50A347V3Y, S50A347V3YN, S50A480V1P, S50A480V3D, S50A480V3H, S50A600V3D, S100A120V2P, S100A120V2P, S100A277V2P, S100A277V2P
Divisions of APT:
Whole House Surge Protector
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