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Rail Primary Power Surge Protector with Flying Lead



  • Uses a hybrid Transient Voltage Surge Suppression (TVSS) filter device that incorporates TD technology
  • Capacitive filtering and voltage dependent metal oxide varistors provide high-energy surge suppression
  • Active parallel filter removes common disturbances in electrical environment
  • Flying lead monitors status of surge suppression components in each phase


Part Number EPD120240TDFL
Nominal System Voltage (Un) 120/240 V
Max Continuous Operating Voltage (Uc) 150/300 VAC
Stand-off Voltage 240/480 VAC
Frequency 50 – 60 Hz
Aggregate Surge Rating 206 kA 8/20 μs
Voltage Protection Level (Up) 600 V @ 10 kA L-N
870 V @ 20 kA L-N
450 V @ 3 kA L-N
400 V @ 500 A
Short Circuit Current Rating (SCCR) 200 kA
Filtering -40 dB @ 100 kHz
Lead Length 24"
Lead Size #12
Distribution System 1Ph 3W+G
Protection Modes L-N
Status Indication LED
Technology TD technology with EMI/RFI filter
Mounting 1/2” straight nipple
Humidity 0 – 90 % RH
Temperature -40 to 158 °F
Enclosure Material Metal
Enclosure Rating NEMA®-1
Depth (D) 4.3"
Height (H) 6.3"
Width (W) 6.3"
Unit Weight 6 lb
Complies With ANSI®/IEEE® C62.41.2-2002 Cat A, Cat B, Cat C
ANSI®/IEEE® C62.41.2-2002 Scenario II, Exposure 2, 50 kA 8/20 μs
AREMA® requirements
Standard Packaging Quantity 1 pc
UPC 78285647500

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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.