Leading Manufacturer of Safety Interlock Switches and Machine Guard Safety Switch Devices for Automation and Process Safety

Trapped Key Spring Handle Tongue Interlock with Dual Key (SS-HT-D-11)

The SS-HT-D Trapped Key Interlock operates by using a spring loaded handle lock mechanism, which is locked when the first key is removed. Inserting and turning the appropriate key allows the secondary key to be released, unlocking the handle and allowing access to the hazardous area. The second key (often referred to as the personnel key) should be taken inside the hazardous area to reduce the likelihood of an inadvertent start-up. The SS-HT-D interlock features IDEM’s anti-tamper cam system for long term proven reliability.


  • Material: 316 Grade Stainless Steel
  • Holding Force: F1Max 3000N
  • Ingress Protection: IP69K
Part No. Part Description
SS-HT-D-L-11 Handle Interlock with Spring Dual (Left-Hand Config) Key – 1 Key Trapped, 1 Key Released
SS-HT-D-R-11 Handle Interlock with Spring Dual (Right-Hand Config) Key – 1 Key Trapped, 1 Key Released

Note
Key sold separately

Technical Data
Material316 Grade Stainless Steel
Operating Temperature-25 ... +60 °C
Holding Force3000N. (F1max.) 2307N. (Fzh)
Mechanical Life (B10d)1,000,000 cycles