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Rail Primary Power Surge Protector


  • Modular design allows easy replacement of surge modules
  • Terminals provided within panel
  • Viewing window for safe inspection
  • Internal high interrupt capacity fusing for added safety


Part Number EPD100HZ120240V EPD100HZ120S EPD100HZ120V
Nominal System Voltage (Un) 120/240 V 120 VAC
Max Continuous Operating Voltage (Uc) 150/300 VAC 150 VAC
Max Discharge Current (Imax), Per Mode 15 kA 8/20 μs
Nominal Discharge Current (In), Per Mode 40 kA 8/20 μs
Frequency 0 – 100 Hz
Voltage Protection Level (Up) 1,400 V @ 15 kA 1,200 V @ 15 kA
Short Circuit Current Rating (SCCR) 25 kA
Connection, Stranded #16 – #4 #14 – 2/0 #16 – #4
Protection Modes Differential
Status Indication Mechanical flag
Technology MOV with thermal disconnect
Humidity 0 – 90 % RH
Temperature -40 to 176 °F
Enclosure Material Metal
Enclosure Rating NEMA®-4
Depth (D) 4.6"
Height (H) 8"
Width (W) 11 1/2"
Unit Weight 12 lb
Complies With ANSI®/IEEE® C62.41.2-2002 Cat A, Cat B, Cat C
AREMA® requirements

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ANSI is a registered trademark of American National Standards Institute.
AREMA is a registered trademark of American Railway Engineering and Maintenance-of-Way Association, Inc.
IEEE is a registered trademark of The Institute of Electrical and Electronics Engineers, Inc.
NEMA is a registered service mark of National Electrical Manufacturers Association.