3RW4047-1TB04
The 3RW4047-1TB04 is a simplified soft starter in the Siemens SIRIUS 3RW40 series S3 housing. It has a rated current of 98A at 50°C, a control power supply voltage of 24V AC/DC, and a thermistor (PTC) input terminal to receive motor temperature sensing signals, providing more immediate overheat protection.
Product Positioning
The 3RW4047-1TB04 is a Siemens SIRIUS 3RW40 series S3 housing soft starter with a rated current of 98A. It is specially equipped with a thermistor (PTC) input terminal, which can directly read the motor winding temperature signal, making it suitable for applications that are sensitive to motor temperature rise.
Core Product Advantages and Features
Thermistor (PTC) input
It can be directly connected to the motor's built-in temperature sensor to monitor the winding temperature rise in real time.
S3 chassis standard current
The rated current is 98A at 50°C, which corresponds to a 230V motor of approximately 30kW.
24V AC/DC control power supply
The control loop voltage is 24V, which facilitates integration with common PLCs or low-voltage control systems.
Adjustable current limiting startup
Adjust the starting current limit value according to the characteristics of the motor on site to reduce starting impact and mechanical stress.
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