BUS BAR INTERLOCK MECHANISM FOR TAP OFF BOX

摘要

The various embodiments of the present invention provide an interlock mechanism for Tap off Box (TOB) with Bus Bar Trunking system. According to one embodiment of the present invention, an interlock mechanism has a plunger assembly and an interlock assembly. The plunger assembly is mounted on a support plate holding a circuit breaker. An operating handle of the circuit breaker is connected to the plunger assembly through a link assembly. The interlock assembly is mounted on the tap off box. The link assembly pushes the plunger assembly to engage with the interlock assembly to lock the tap off box with the busbar to prevent the removal of the tap off box from the busbar, when the operating handle of the circuit breaker is moved to turn the circuit breaker to the ON state.