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3RV1 Circuit Breaker/MSP
SIRIUS System Manual
2-8 GWA 4NEB 430 0999-02 DS 01
Warning
The adjusting knob can be turned 360° clockwise. You can only turn it coun-
terclockwise within the adjustment range.
A setting over the marked current scale is not permitted
Sealing the
adjustment scale
You can prevent unauthorized adjustment of the current setting by placing a
transparent cover over it and sealing it.
Fig. 2-3: Sealing the adjustment scale (example: frame size S00)
Switches The state of the circuit breaker/MSP can be determined by the position of
the switch:
Fig. 2-4: Tripped position, 3RV (example: frame size S0)
3RV19 08-0P
Frame size Switch STOP ON Tripped
S00
Toggle switch
OFF ON OFF
S0, S2, S3
Rotary switch
OFF ON TRIPPED
Table 2-2: Contact position indicators of the circuit breaker/MSPs
RV-01050