The primary system diagram and On/Off indicators are integrated onto the panel, providing clear sequence and status indications for operations. The circuit breaker features a reclosing function.
The three-position switch adopts a dual-operating-shaft design to guarantee the independence of the earth switch and prevent mis-operation.

Between the cable compartment and the earth switch is equipped with a reliable interlocking device. The earth switch can only be operated when the circuit breaker is in the open position.
The cable compartment door can only be opened after the earth switch is completely closed. Once the door is open, the earth switch automatically locks and cannot be opened.

The cable testing device is connected to the earth switch. The cable testing compartment door can only be opened when the system is earthed. Upon opening the door, the grounding switch automatically locks, preventing disconnection. Cable testing operations can then be performed.

The integrated fully sealed current transformer is located at the cable bushing, featuring a compact design that does not interfere with cable installation operations. The cable installation height exceeds 750mm, facilitating installation.