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Brand / manufacturer: MERSEN (FERRAZ SHAWMUT)

Voltage: 240

Department: 16

Series: STXH

Catalog Number: STXH240S05

Catalog / class: Surge Protector

Speed: Very Fast Acting


Categories: , , ,

*Prices Subject to Change




  • 240 volts
  • Designed with the industry leading Mersen TPMOV® technology
  • Meets requirements for UL1449 4th Edition and is suitable for any 120/240VAC split phase application
  • Compact footprint designed to mate with AC disconnect switches
  • NEMA 4X enclosure for outdoor or indoor use
  • Fits 1/2″ knockouts with 18″ leads for easy installation
  • For use in ANSI/UL Type 1 or 2 SPD installations
  • 3 modes of protection (L-N, L-L)
  • RoHS compliant
  • 3-year warranty


The Mersen® Surge-Trap® Series Surge Protection Device (SPD) safeguards residential air conditioning (A/C) units including mini-splits, furnaces, and air handlers from costly voltage surge events, such as fluctuations in power often generated from inside a home or building, and from an outside source like lightening. The easy to read LED status indicator flashes green to show SPD is “on” or the LED will be out indicating the SPD should be replaced. Compact in size, the Mersen STXH240S05 series provides Type 1 and Type 2 surge protection to help maintain safe, reliable A/C and furnace performance.


Mersen XH Series Datasheet