3RW4056-6BB34
The 3RW4056-6BB34 is a SIRIUS series soft starter that starts a three-phase induction motor using a voltage ramp method, reducing the impact on the power grid and mechanical transmission during startup. It has built-in bypass contacts and motor overload protection, and the startup parameters can be flexibly adjusted and set according to the characteristics of the load on site.
Product Positioning
The 3RW4056-6BB34 is a soft starter from the Siemens SIRIUS 3RW40 series. It enables smooth starting of three-phase motors through thyristor phase control and is suitable for motor control applications in general industrial automation.
Core Product Advantages and Features
Smooth voltage ramp start
Thyristor phase control is used to reduce the current surge and mechanical stress during motor startup.
Built-in bypass contact
Once the circuit reaches full speed, power is supplied by the bypass contact to help reduce the heat generated by the thyristor during prolonged conduction.
Motor overload monitoring
It has a built-in electronic overload protection function to monitor the motor's operating status.
The rate limiting can be adjusted.
The start-up ramp time and current limit value can be adjusted and set according to the on-site load conditions.
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