The Siemens door-coupling rotary operating mechanism is engineered for compatibility with the 3KL50, 3KM50, 3KA50, and 3KA51 series, utilising a robust design for operating shafts measuring 6 x 6 mm. Extension shaft enhances usability in various installation scenarios Emergency-OFF handle provides immediate disconnection for safety Lockable feature secures the mechanism against unauthorised use
