Brochure

3RV1 Circuit Breaker/MSP
SIRIUS System Manual
GWA 4NEB 430 0999-02 DS 01
2-5
2.2 Device description
3RV1 circuit breaker/MSPs are used to switch and protect three-phase
induction motors of up to 45 kW at 400 V AC (100 HP at 600V AC) and for
loads with rated currents of up to 100 A.
The 3RV1 circuit breaker/MSPs have 3 poles. To achieve the highest degree
of flexibility, auxiliary switches, alarm switches, auxiliary releases, and other
accessories can be easily attached to the circuit breaker/MSPs without
tools.
3RV1 circuit breaker/MSPs and 3RT1 contactors work together both electri-
cally and mechanically. This enables them to be easily and quickly put
together to make load feeders.
Frame sizes 3RV1 circuit breaker/MSPs are available in 4 frame sizes (S00 to S3).
Fig. 2-1: 3RV1 circuit breaker/MSPs (frame sizes S00 to S3)
The following table shows you the frame sizes and the corresponding maxi-
mum rated operational current at a voltage of 400 VAC. The last column in
the table tells you which three-phase induction motor is suitable for which
particular size.
S00 S0 S2 S3
Frame
size
Width
Max. rated operational
current
Output power of the
three-phase induction
motor
S00
45 mm 12 A 5.5 kW
S0
45 mm 25 A 11 kW
S2
55 mm 50 A 22 kW
S3
70 mm 100 A 45 kW
Table 2-1: circuit breaker/MSPs, frame sizes