3Rw55 Failsafe Soft Starter - Siemens SIRIUS 3RW55 Equipment Manual

Soft starters and solid-state switching devices

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Table of Contents

Wiring of the 3SK1 safety relay SIL 3 without line contactor

3RW55 Failsafe soft starter

Requirements

• 3RW55 Failsafe soft starter

SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters

Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006

Start button

EMERGENCY STOP

3SK1111 safety relay

Example circuits

A.4 3RW55 Failsafe soft starter

Table of Contents

Sirius 3rw55 failsafe