Solenoid Key Release, Pushbutton, Emergency Stop (SS-TS-SR-PB-ES)

The SS-TS-SR-PB-ES safety switch with trapped key operates by using a solenoid-controlled release key, which is held captive until an unlock signal is initiated. Removing the key releases the actuator and allows access to the hazardous area. The released key (often referred to as the personnel key) is taken inside the hazardous area to reduce the likelihood of an inadvertent start-up.


  • Manufactured from 316 Grade Stainless Steel
  • Holding Force up to F1Max 3000N
  • Ingress Protection up to IP67
  • Rotating Head for up to 8 Actuator Entry Positions
  • Reliable Anti-Tamper Cam Mechanism
  • Includes 24Vdc Momentary Pushbutton + Illuminated E-Stop
  • Optional Lockout Dust Cover (LT)
  • Optional Custom Label Dust Cover (CK)

Part NumberDescriptionDust Cover TypeManual ReleaseRear Release
815001-PB-ESSS-TS-SR 2NC 2NO Manual Release M20 - Pushbutton + E-StopStandardYESNO
815001-PB-ES-LTSS-TS-SR-LT 2NC 2NO Manual Release M20 (with Lockout Dust Cover) - Pushbutton + E-StopLockoutYESNO
815001-PB-ES-CKSS-TS-SR-CK 2NC 2NO Manual Release M20 (with Custom Label Dust Cover) - Pushbutton + E-StopCustom LabelYESNO
815002-PB-ESSS-TS-SR 3NC 1NO Manual Release M20 - Pushbutton + E-StopStandardYESNO
815002-PB-ES-LTSS-TS-SR-LT 3NC 1NO Manual Release M20 (with Lockout Dust Cover) - Pushbutton + E-StopLockoutYESNO
815002-PB-ES-CKSS-TS-SR-CK 3NC 1NO Manual Release M20 (with Custom Label Dust Cover) - Pushbutton + E-StopCustom LabelYESNO
815301-PB-ESSS-TS-SR 2NC 2NO No Manual Release M20 - Pushbutton + E-StopStandardNONO
815301-PB-ES-LTSS-TS-SR-LT 2NC 2NO No Manual Release M20 (with Lockout Dust Cover) - Pushbutton + E-StopLockoutNONO
815301-PB-ES-CKSS-TS-SR-CK 2NC 2NO No Manual Release M20 (with Custom Label Dust Cover) - Pushbutton + E-StopCustom LabelNONO
815302-PB-ESSS-TS-SR 3NC 1NO No Manual Release M20 - Pushbutton + E-StopStandardNONO
815302-PB-ES-LTSS-TS-SR-LT 3NC 1NO No Manual Release M20 (with Lockout Dust Cover) - Pushbutton + E-StopLockoutNONO
815302-PB-ES-CKSS-TS-SR-CK 3NC 1NO No Manual Release M20 (with Custom Label Dust Cover) - Pushbutton + E-StopCustom LabelNONO

Note
Key and Actuator sold separately
Optional pushbutton (PB) and illuminated emergency stop (ES) available
LED2 Green is an auxiliary indication circuit for optional user use
Please note that for trapped key access locks, either a key or an actuator must be ordered with the product. This is required for manufacturing, as the internal mechanism must be configured to trap one of these parts. For assistance, please contact the IDEM Sales team.

Technical Data
Material316 Grade Stainless Steel
Operating Temperature-20 ... +40 °C
Holding Force3000N. (F1max.) 2307N. (Fzh)
Mechanical Life (B10d)1,000,000 cycles
Solenoid Voltage: 24V.dc (+/- 10%)
LED2 voltage24V.dc (+/- 10%)
Conduit exitM20
Enclosure protectionIP67