Siemens SIRIUS 3RH Series, System Manual

Page: 207 / 786

SIRIUS 3RT2 contactors/contactor assemblies
2.7 Accessories
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
207
2.7.20 Insulating stop
2.7.20.1 Description
The insulating stop is available in the following versions.
Table 2- 62 Versions of the insulating stop
Size Order number Can be used for
S00 3RT2916-4JA02 Basic devices 3RT2.1 and 3RH21
S0 3RT1916-4JA02 
Terminals for the auxiliary circuit and the control circuit of basic
device 3RT2.2

Auxiliary switch blocks which can be mounted on the front and
side
The insulating stop is for contactors with spring-loaded connections. In the case of
conductors with a small conductor cross-section (≤ 1mm
2
), it ensures that the conductor
insulation is not clamped with the rest of the cable. An insulating stop unit comprises 5 pairs
of terminals which can be separated. The diagram below illustrates an example of how the
the 3RT2916-4JA02 insulating stop can be used on a size S00 basic device.
Figure 2-36 Insulating stop on spring-loaded connection