Manufacturer Part NumberV271HA40
DescriptionVARISTOR 389V 40KA DISC 40MM
Stock CodeW006951
DownloadTechnical Datasheet

HA Series transient surge suppressors are industrial high energy Metal-Oxide Varistors (MOVs). They are designed to provide secondary surge protection in the outdoor and service entrance environment (distribution panels) of buildings, and also in industrial applications for motor controls and power supplies used in the oil-drilling, mining, and transportation fields. The design of the HA Series of MOVs provide rigid terminals for screw mounting. Also available in a clipped lead version for through hole board placement or to accommodate soldered leads designation "HC."

  • Lead–free, Halogen-Free and RoHS compliant.
  • Wide operating voltage range VM(AC)RMS 110V to 750V
  • Two disc sizes available 32mm and 40mm
  • High energy absorption capability WTM = 170J to 1050J
  • High peak pulse current capability, ITM = 25,000A to 40,000A
  • Rigid terminals for secure mounting
  • Available in trimmed version for through hole board mounting
  • No derating up to 85ºC ambient


Power Rating

400 W



Voltage Rating (AC)

275 V

Voltage Rating (DC)

369 V



Operating Temperature

-55.0 °C to 85.0 °C


4.50 mF

Insulation Resistance

1.00 GΩ

Lead-Free Status

Lead Free

Mounting Style

Lug, Screw