Skip To The Main Content

  • Limit Switches

Harsh Environment with Accident Conditions Nuclear Qualified Limit Switch

EA740 Series

The EA740 Series is a Double Pole Double Throw (DPDT) Limit Switch featuring Cam Type SNAP-LOCK® Technology. The EA740 Series is qualified for harsh environments with accident conditions (LOCA, HELB, Radiation and Seismic resistant). The EA740 Series has two different connection options available: NPT Conduit Opening and QDC.

  • Qualified to IEEE Standards 344-1975, 323-1974 and 382-1972
  • Manufactured to a quality assurance program designed to meet the requirements of 10CFR50, Appendix B, and ANSI N45.2, as applicable
  • Die-cast bronze housing for corrosion resistance
  • Stainless steel top cover and fasteners
  • Gold-plated contacts minimize resistance and ensure years of reliable service
  • High temperature components
  • High temperature lubricants
  • Seismic and vibration resistant
  • Resists chemical spray
  • Available in three mounting styles (Standard, Long, Wide)

Specifications

Type:
Environment:
  • Harsh Environment with Accident Conditions (LOCA/HELB)
Housing:
  • Die-cast Bronze
Weight:
4.3
Operating Temperature:
  • 21°C to 90°C
Pre-Travel:
  • 18°
Max. Travel:
  • 90°
Enclosure:
Radiation:
Pressure:
Max. Temperature:
SNAP-LOCK Technology:
  • Cam Type
Mounting: