Components And Combinations; Switching And Starting; Sirius 3Rt2 Contactors - Siemens SIRIUS 3RT Series System Manual

System overview

1.7 Components and combinations

1.7 Components and combinations
1.7.1

Switching and starting

1.7.1.1

SIRIUS 3RT2 contactors

3RT2 contactors
Figure 1-11
SIRIUS 3RT2 contactors and contactor assemblies offer maximum flexibility in terms of
dimensioning, handling, and function:
Table 1- 9
Area
Functions
Dimensioning and
design
Mounting
advantages
42
S0 contactor
3RT2 contactors and contactor assemblies
Customer benefits
Power contactors (motors, resistive loads) and contactor relays

Conventional (S00 and S0) and electronic drive (S0 only; reduced power

consumption)
Function modules for mounting on contactors and for connection to the

automation level (AS-i/IO-Link)
Reversing contactor: space-saving mechanical interlock for S00 and S0

Performance increase: S00 (7.5 kW, 16 A), S0 (18.5 kW, 38 A)

Width 45 mm

Integrated auxiliary switches in both S00 and S0

Auxiliary switches in identical design for S00 and S0

Screw-type, spring-loaded, and ring cable lug connection systems, plus

solder pin connection system (S00 only)
Contactor assemblies (for star-delta (wye-delta) start, reversing contactor

assembly, 2 contactors in series)
Contactor assembly for star-delta (wye-delta) start:

– Up to 22 kW
– Control circuit wiring integrated in function modules, incl. electrical and
mechanical interlock
Easy assembly of contactor assemblies and feeders by means of link

modules for screw-type and spring-loaded terminals
Integrated cable duct for feeder-oriented assembly (with S0)

SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03