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3RT1/3RH1 contactors
SIRIUS System Manual
3-84
GWA 4NEB 430 0999-02b
Variants
The following variants of parallel connections are available:
Table 3-32: Parallel connections Variants
2) Accessories for star-delta combinations
Installation
The parallel connections can be each shortened by one pole.
3.4.7.6 Covers for frame sizes S2 and S3
To increase safety, terminal covers are available for contactors of frame
sizes S2 and S3:
Table 3-33: Covers
Frame size
Variants
S00 to S3
3-pole, without terminal (star-point link)
2)
S00 to S3
3-pole with terminal
S00 4-pole
with
terminal
Variants
Function
Number required
Terminal cover
for box terminals
3RT19.6-4EA2
Offers additional shock protection
2 covers per contactor are
required (for the upper
and lower main terminals)
Terminal cover
for lug and
bar connection
3RT1946-4EA1
Ensures that voltage intervals are adhered to
Provides shock protection when the box termi-
nal is removed
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