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

Explosion Proof Trapped Key Control Isolation Switch with Tongue Interlock (M-TS-CB-EX)

The M-TS-CB-EX can be used to isolate the control circuitry and can be mounted externally. Turning the key opens the safety contacts, turning the CONTROL CIRCUIT OFF, allowing the key and tongue to be removed. The M-TS-CB-EX does not have a key present during normal operation and requires a key to be transferred to the access lock to gain entry. The M-TS-CB-EX can be used at the gate as both a guard access interlock and/or control isolation switch.

  • Body Material: Mirror Polished Die-Cast Metal
  • Ingress Protection: IP67
  • Contacts: 2-Pole or 4-Pole Ex Rated Contact Blocks
  • Zones: 1, 21, 2, 22
  • Ex Marking: Exd IIC T6 (-20 ≤ Ta ≤ +60C) Gb / Ex tb IIIC T85C (-20 ≤ Ta ≤ +60C) Db
Part NumberPart Description
M-TS-CB-11-EXSingle Tongue Interlock with 1NC 1NO EX with 3 meter Pre-Wired
M-TS-CB-22-EXSingle Tongue Interlock with 2NC 2NO EX with 3 meter Pre-Wired

Important Note
Comes with 3m of pre-wired cable (longer available on request).
Key sold separately.
Actuator sold separately.

Technical Data
ApprovalsIECEx, cULus on LS-Ex Internal Contact Block
TechnologyTrapped Key Interlock with Electrical Monitoring
Housing MaterialDie-Cast Aluminum
Enclosure ProtectionIP67
Operating Temperature -25 ... +60 °C
Holding Force3000N. (F1max.) 2307N. (Fzh)
Mechanical Life (B10d)1,000,000 cycles
Switching frequency (LS-Ex)1.0 Hz maximum
Mechanical Life Expectancy (LS-Ex)1,000,000 switches
Electrical Life Expectancy (LS-Ex)Tested to 1,000,000 cycles at 24V. 0.2A

Ex Classification
ATEX Zones 1,21,2,22
II 2G Ex mb IIC T6 Gb
II 2D Ex mb IIIC T80C Db