Covers For Frame Sizes S2 And S3; Table 3-32: Parallel Connections Variants - Siemens sirius System Manual

3RT1/3RH1 contactors
Variants
Installation

3.4.7.6 Covers for frame sizes S2 and S3

Variants
Terminal cover
for box terminals
3RT19.6-4EA2
Terminal cover
for lug and
bar connection
3RT1946-4EA1
Table 3-33: Covers
3-84
The following variants of parallel connections are available:
Frame size
S00 to S3
S00 to S3
S00

Table 3-32: Parallel connections Variants

2) Accessories for star-delta combinations
The parallel connections can be each shortened by one pole.
To increase safety, terminal covers are available for contactors of frame
sizes S2 and S3:
Function
Offers additional shock protection
Ensures that voltage intervals are adhered to
Provides shock protection when the box termi-
nal is removed
Variants
3-pole, without terminal (star-point link)
3-pole with terminal
4-pole with terminal
Number required
2 covers per contactor are
required (for the upper
and lower main terminals)
2)
SIRIUS System Manual
GWA 4NEB 430 0999-02b