3RW4443-2BC45
The Siemens 3RW4443-2BC45 soft starter features a rated voltage of 400-600V AC, a standard 203A connection at 40°C, and a 230V AC control power supply. With internal delta wiring, it can reach 200kW at 400V, making it suitable for starting heavy-duty equipment.
Product Positioning
The SIRIUS 3RW4443-2BC45 belongs to the 3RW44 series of soft starters. It replaces star-delta or full-voltage starting with electronic step-down control and has built-in motor overload protection. It is suitable for medium and large three-phase motors that operate in one direction.
Core Product Advantages and Features
Integrated overload protection
Built-in electronic motor overload protection dynamically adjusts the trip curve according to the actual motor current, reducing the risk of burnout.
High temperature environment rated integrity
It can still output rated current at a ambient temperature of 40°C, making it suitable for places with poor heat dissipation conditions such as computer rooms or outdoor cabinets.
Internal delta wiring doubles capacity
It supports internal delta wiring and can control large motors with power up to 200kW under 400V.
Unidirectional operation design
Optimize start-stop curves for unidirectional operation applications and simplify wiring and settings for fan and pump loads.
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