SIRIUS 3RF34 solid-state switching devices 
  3.10 Accessories 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
347 
3.10  Accessories 
3.10.1  Accessories overview 
For maximum flexibility, accessories can be added to the solid-state switching devices as 
required, easily, and without the need for tools. 
Table 3- 22  Accessories for solid-state switching devices 
Accessories  Solid-state contactor  Solid-state reversing 
contactor 
Insulated 3-phase busbar system for spring-loaded 
connection for three solid-state contactors 
✓  – 
Insulated 3-phase busbar system for spring-loaded 
connection for four solid-state contactors 
✓  – 
3RT2916-4JA02 insulating stop for spring-loaded 
connection 
✓  – 
Busbar adapter for 40 mm system  ✓  ✓ 
Busbar adapter for 60 mm system  ✓  ✓ 
Link module for motor starter protector  ✓  ✓ 
3.10.2  Insulating stop 
3.10.2.1  Description 
The 3RT2916-4JA02 insulating stop is designed for solid-state contactors with spring-loaded 
connections and ensures that the conductor insulation is kept back in the case of conductor 
cross-sections up to 1 mm
2
. An insulating stop unit comprises 5 pairs of terminals. As 
illustrated below, it plugs into the spring-loaded cable entries (max. conductor cross-section 
up to 2.5 mm
2
). 
 
Figure 3-15  Insulating stop 3RT2916-4JA02