ABB – 2TLA050009R0112 (MKey9M) – Solenoid Guard Locking Interlock Switch, 24 VDC

The ABB MKey9M interlock switch (Part No. 2TLA050009R0112) is a compact, rugged solenoid-activated guard-locking switch designed to secure machine doors or safety guards. Featuring a power-to-lock mechanism with a slim polyester housing and stainless-steel actuator head, it delivers up to 1 ,800 N holding force. Ideal for functional safety circuits up to PL e / SIL 3.

 Key Features & Specs

• Model / P/N: 2TLA050009R0112 (MKey9M, solenoid locking, M20 conduit)  

• Power: 24 V DC (power-to-lock, spring-to-unlock)  

• Holding Force: Up to 1,800 N (approx. 180 kg)  

• Housing & Actuator: Polyester body, stainless-steel actuator head (rotates 8 positions)  

• Ingress Protection: IP67 sealed housing with double-lid gasket  

• Conduit Entry: 1 × M20 entry for clean wiring setup  

• Electrical Integration: Ideal for use with ABB Jokab and safety control modules

• Locking Type: Power-to-lock — locks when energized, unlocks upon power removal (not for running-down applications)