3RW4073-6BB34
The Siemens 3RW4073-6BB34 soft starter controls the starting of a three-phase motor using a voltage ramp method, reducing the impact of starting surges on the mechanical and power supply systems. It also has built-in bypass contacts to reduce heat generation during full-speed operation and is equipped with motor overload protection, making it suitable for a variety of industrial automation applications.
Product Positioning
The 3RW4073-6BB34 belongs to the Siemens SIRIUS 3RW40 series soft starters, which reduce the surge current during motor startup using voltage ramp control. This model, along with other versions in the 3RW4073 series, belongs to the higher capacity category.
Core Product Advantages and Features
Smooth Start-up Control
By using a voltage ramp method, the motor can be smoothly accelerated from a standstill, reducing the starting shock of the mechanical transmission.
Built-in bypass function
Using bypass contacts instead of thyristors for conduction during full-speed operation helps reduce heat generation during operation.
Motor protection mechanism
Built-in motor thermal overload protection helps reduce the risk of motor damage under abnormal operating conditions.
Adjustable startup parameters
It provides adjustable start-up ramp time and current limit value to accommodate different motors and load conditions.
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