OPERATING INSTRUCTIONS RH 340 OPeration

Switching on the circuit breaker

The circuit breaker is accessible in field II after opening the switchgear cabinet door (Fig. 2-74:).

Slip switch lever (11, Fig. 2-75:) pointing upwards onto the actuating shaft of the circuit breaker (1).

Pull locking element outwards against spring pressure.

Using switch lever (11), turn actuating shaft (drive A) clockwise from position I by ca. 180° downwards to position II

This tensions the cut-out spring.

Using switch lever (11, Fig. 2-76:), turn actuating shaft counter-clockwise from position II by 180° upwards to position I

This tensions the cut-in spring and the circuit breaker is switched on.

Engage locking ring.

The indicator lamp (1, Fig. 2-77:) comes on.

Switching off the circuit breaker

Pull locking element outwards against spring pressure.

Using switch lever (11, Fig. 2-75:), turn actuating shaft ca. 20° counter-clockwise. This releases the cut-out spring. The circuit breaker is switched off.

The indicator lamp (1, Fig. 2-77:) goes out.

Further information is given in the attached leaflet on circuit breakers.