Back To Top
ASCO™ Series 2WSNF Operator with Integrated Surge Protection Device
The ASCO Series 2WSNF solenoid valve coil with inbuilt surge protection, ensures you to meet surge protection requirements in your solenoid valve circuits, without having to engineer, purchase or install additional components. It enables you to meet the required level of lighting protection and ensures operation safety in a small footprint. This operator coil can be installed on the ASCO solenoid valve Series 327, 551 and 553, covering the majority of actuator piloting operations.


  • Reduce footprint and eliminate the need for additional components by having inbuilt surge protections preventer in the solenoid coil
  • Patented, multi-layer surge-protection design ensuring timely and effective pressure relief and limiting current under external surge impact
  • Improved protection reliability and prolonged service life thanks to modular glue seal structure, common shell design, excellent temperature and corrosion resistance
  • Certification includes: ATEX/IEC Ex/CCC
  • Meets Chinese surge test standard IC 61643-21, GB/T 18802.21, and China National Petrochemical Instrumentation SH/T 3164-2021 Specification for Lightning Protection Design Standard
  • With IP66/67 grade
  • Wide environment temperature range: -40° C to +60° C (-40° F to +140° F)