Mechanical interlock guaranteed to prevent simultaneous engagement compatible with the full Series SC-NEXT range from SC09X through to SC65X, as well as SC20D, SC26D, and SC38D frames. Snap-on installation between paired SC-NEXT contactors keeps the assembly compact and the wiring clean, with no additional mounting hardware required. It is designed to physically prevent two paired contactors from being pulled in at the same time. The essential safety component for any reversing starter or star-delta application where simultaneous contactor operation would cause a direct short circuit. Electrical interlocks rely solely on control circuit integrity, but this unit adds a hardwired mechanical barrier that works regardless of control circuit condition, software state, or wiring faults. It’s the kind of protection that gives panel builders and end users genuine peace of mind, knowing that even in a worst-case control failure scenario, the main circuit is physically protected.
