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3RV1 Circuit Breaker/MSP
SIRIUS System Manual
GWA 4NEB 430 0999-02 DS 01
2-7
Other accessories Other accessories for circuit breaker/MSPs:
•Alarm switch
• Disconnecting module
• Isolated 3-phase busbar system
• Busbar adapter
• Rotary switches
• Terminals for "Combination Motor Controller Type E" in acc. with UL 508
• Housing and front plates
2.2.2 Operation
Current setting Using a screwdriver, set the load rated current (current setting) I
e
on the
scale of the 3RV1.
The proper dial setting will depend how the 3RV1 will be installed. There are
two determining factors:
1. Stand-alone installation: without a directly mounted contactor and clear-
ance left and right of a minimum 10 mm.
2. Side-by-side installation: with a directly mounted contactor and clear-
ance left and right of less than 10 mm. This is the typical installation
method.
Note the two possible dial markings on the dial:
• Dash mark: Is the dial marking used when the 3RV1 is being applied in
stand-alone installation
• Triangle mark: Is the dial marking used when the 3RV1 is being applied in
side-by-side installation
In both cases the ambient temperature may be +60 °C and the complete
current range can be used up to the highest setting. The relevant dial mark-
ing (Dash or Triangle) should be set according to the required current set-
ting. At temperatures over +60 °C current derating is necessary. The maxi-
mum allowable current setting for an ambient temperature of +70 °C can be
determined by a slightly longer setting line on the current scale.
Fig. 2-2: Current adjustment I
e
adjustment (example: frame size S00)
360° o.k.
RV-00222
I
e
max. + 60 °C
max. + 70 °C
A