Siemens SIRIUS 3RH Series, System Manual

Page: 78 / 786

System overview
1.9 Connection
SIRIUS Innovations
78
System Manual, 01/2011, A8E56203870002-03
Insulating stop
With conductor cross-sections which are ≤ 1 mm
2
, you should use an insulating stop to
prevent the conductor insulation from being clamped. The insulating stop can be used with
the following devices:
Table 1- 25 Overview table - Use of insulating stop for conductor cross-sections ≤ 1 mm
2
Size S00 Size S0
Main circuit Control circuit Main circuit Control circuit
3RT2/3RH2 contactors (basic
devices)
2 2 — 1
Accessories for 3RT2 contactors
(e.g. auxiliary switches)
— 1 — 1
3RF34 solid-state switching
devices
— — 2 —
3RW30/40 soft starters 2 0 — 0
3RV2 motor starter protectors
(basic devices)
2 1 — 1
Accessories for 3RV2 motor
starter protectors (e.g. auxiliary
switches)
— 1 — 1
3RU2 thermal overload relays — 1 — 1
3RB3 solid-state overload relays — 0 — 0
3RA6 compact starters — — — 0
3RA27/3RA28 function modules — 0 — 0
3RR2 current monitoring relays — 0 — 0
0: No insulating stop required
1: Insulating stop 3RT1916-4AJ02
2: Insulating stop 3RT2916-4AJ02
—: Not relevant (e.g. conductor cross-section ≤ 1 mm
2
) or not available
The graphic below shows how the insulating stop is used:
Figure 1-35 Insulating stop on spring-loaded connection system