HE103C Series

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The HE103C is a fully encapsulated, solid state arrestor, used for medium duty protection of 120VAC load relays.  The HE103C is a stand alone device suitable for use in either exposed or protected environments.  With no follow current, the HE103C can repeatedly dissipate 10kA (8x20us) surges and immediately self-restore, ready to protect against the next surge.

When ordering the HE103C, please specify which configuration you will need.  The HE103C has a 6 or 9 pin locking connector at the base of the unit.  Regardless of which configuration you choose, you will be assured of the best, most reliable surge arrestor available in the market today.

Download Specifications Sheet (PDF}


Peak Surge Current (8x20us)             26kA (-6), 39kA (-9)
Surge Life (calculated)  10,000 occurrences @ 100 A (8x20us)
Energy  240 Joules
Response Time  <5 ns
Clamp Voltage 340 V @ 1kA
Operating Frequency 47-63 Hz
Operating Temperature -40 to 85°C
Mounting Aluminum Baseplate
Connection Type  5.08mm Euroblock (6 or 9 Position)
Dimensions  6 Pos 2.0"H x .7"W x 1.5"L
   9 Pos 2.0"H x .7"W x 2.0"L


  • Designed for Load Relay Outputs
  • Fits 6 and 9 position, 5.08mm spacing sockets
  • Epoxy Encapsulated
  • Total Solid State Design
  • Recovers Automatically
  • Compact in Size
  • Easy Installation