3RW4424-1BC34

The Siemens SIRIUS 3RW4424-1BC34 soft starter is engineered to provide smooth motor control in industrial applications. It functions effectively with an operational current of 42 amperes at 50 °C under standard conditions and can manage 73 amperes in inside-delta setups. The device is rated for voltages between 200 V and 460 V AC and operates at power ratings of 25 horsepower at 460 V in standard mode, and 50 horsepower in inside-delta operation.

Equipped with an integrated bypass contact system and thyristors, this model enables precise control over the motor's startup process. It also features adjustable current limitations, catering to varying application requirements. The insulation voltage reaches 690 V, supporting durable and safe operations across different environments. According to IEC 60947-4-2 standards, it is rated for a degree of pollution level 3, indicating its suitability for a range of industrial settings.

This soft starter operates efficiently within a frequency range of 50 to 60 Hz, with a relative tolerance of ±10 %. A minimum load of 8% ensures effective performance without compromising operational stability. For continuous operations at 40 °C, it can handle up to 115% of its rated current while maintaining a power loss of 32 watts at operational current, thereby optimizing energy consumption.