MasterPact interlocking 2 or more devices fixed installation. Interlocking using tie rods for 2 MTZ1. Required for this function. An adapter bracket on the right hand side of each circuit breaker. A set of tie rods in a non-slip arrangement. A CDM mechanical operation counter (mandatory). The adapter brackets, tie rods, circuit breakers and load break switches are supplied separately and ready for immediate installation. The maximum vertical distance between the fixing plates is 900 mm.