Siemens SIRIUS 3RW4443-6BC44 Soft Starter (Phased Out)

The Siemens SIRIUS 3RW4443-6BC44 is a high-feature soft starter designed for the soft starting and ramp-down of three-phase asynchronous motors. Under standard conditions at 400V and 40°C, it supports 203 A and 110 kW. In an inside-delta circuit, it handles 352 A and 200 kW. It operates with a control voltage of 230 V AC and features screw terminals.

This product is phased out, with the SIRIUS 3RW5 series being its successor, specifically the 3RW5543-6HA14 preferred type. The 3RW44 series offers integrated bypass for compact construction, low heat dissipation, and intelligent monitoring functions to protect the motor and starter.

Stanlo Automation, a veteran-owned surplus parts distributor, offers this Siemens SIRIUS soft starter. While phased out, it remains a viable option for specific applications. Secure reliable industrial automation components from Stanlo, your trusted source.