OPERATING INSTRUCTIONS RH 90 C E Operation Switching on the circuit breaker The circuit breaker is accessible in field I after opening the switchgear cabinet door (Fig. 2-39:).
Fig. 2-41:
Fig. 2-39:
 Slip switch lever (11, Fig. 2-40:) 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. 2-41:), 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. 2-42:) comes on.
Fig. 2-42:
Switching off the circuit breaker  Pull locking element outwards against spring pressure.  Using switch lever (11, Fig. 2-40:), turn actuating shaft ca. 20 ° counter-clockwise. This releases the cut-out spring. The circuit breaker is switched off.  The indicator lamp (1, Fig. 2-42:) goes out. Further information is given in the attached leaflet on circuit breakers.
Fig. 2-40:
2-44
BA RH90C(3 720 760.00)-EN
