Introduction
1.2 Purpose of the manual
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
14 Manual, 09/2017, A5E03656507120A/RS-AE/006
This manual describes 3RT2 contactors (up to 55 kW), 3RT1 contactors (from 55 kW),
3RH21 contactor relays, reversing contactor assemblies, and contactor assemblies for star-
delta (wye-delta) start, and it supplies the following information:
● Information about integrating the contactors and contactor assemblies into the system
environment.
● Information on necessary hardware components.
● Information about installing and connecting the contactors.
● Technical information such as dimension drawings and unit wiring diagrams.
The information in this manual enables you to configure and commission the contactors.
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