3RV1 circuit breakers
SIRIUS System Manual
GWA 4NEB 430 0999-02b
2-41
2.4.9 Isolated 3-phase busbar system
3-phase busbars are used to snap circuit breakers of frame sizes S00, S0,
and S2 quickly and easily in a row onto a rail. There is only one power supply,
via a feed-in terminal.
The 3-phase busbar systems are safe from fingers and are shock protected.
They are rated for the short-circuit stress that can occur on the output side
of the connected circuit breakers.
Figure 2-28: 3-phase busbar system
Rated operational
voltage/current
Table 2-17: Rated operational voltage/current
Models
The 3-phase busbars take 2 to 5 circuit breakers, depending on the model.
There are busbars with more generous spacing for circuit breakers with
accessories attached on the side.
Table 2-18: Types of 3-phase busbars
3-phase busbar
3RV1915-.AB
Protective cap
3RV1915-6AB
Feed-in terminal, connection
from below (3RV1915-5B)
Feed-in terminal, connection
from above (3RV1915-5A)
Spacer
Rated operational voltage
690 V
Rated current Frame sizes S00, S0: 63 A
Frame size S2: 108 A
Frame size
of the
circuit
breaker
Spacing Models
S00, S0 45 mm For 2, 3, 4, or 5 circuit breakers
55 mm For 2, 3, 4, or 5 circuit breakers + accessories
63 mm For 2 or 4 circuit breakers + accessories
S2 55 mm For 2, 3, or 4 circuit breakers
75 mm For 2, 3, or 4 circuit breakers + accessories
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