SOO and SO Contactor
Plug-in function modules are available for selected versions of 3RT2 contactors to reduce the control circuit wiring when assembling full-voltage, non-reversing; full-voltage, reversing; and wye-delta starters.
Function Modules
Function modules for full-voltage, non-reversing starters support time-delayed opening/closing of the contactor. Mechanical and electrical interlocking is integrated for a reversing starter assembly. For a wye-delta assembly, use of function modules instead of complex wiring results in a 70 percent reduction in wiring in the control circuit and a smaller footprint because the timing relay and the coil protection circuit are integrated. These function modules with starter functions are also available with connections for AS-Interface or 10 -Link communication. In addition to the reduction in wiring within the branches, interfacing to PLCs is greatly simplified and fewer PLC I/O modules are needed. This approach also facilitates plant-wide diagnostics down to the contactor level.
These function modules can be used with either the S00 or SO size contactor and are available with screw-type or springloaded terminals.
Function Module Plug-in Connections
3RT201 Size SOO
3 RT202 Size SO
Contactor
Contactor
401.
AS-Interface Two-wire Cable
Function Module for AS-Interface
11111
Full-voltage, Non-reversing
Full-Voltage, Reversing
Function Module for 10-Link
10-Link Three-wire Cable
Wye-Delta
59
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