3RW4026-1TB04

The SIRIUS 3RW4026-1TB04 soft starter has a rated current of 25A and can control an 11kW/400V three-phase motor. It has a built-in thermistor (PTC) input terminal to monitor the motor temperature, and a control voltage of 24V AC/DC. It is screw-terminal mounted.

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Product Positioning

The 3RW4026-1TB04 is a Siemens SIRIUS 3RW40 series S0 frame soft starter with a rated current of 25A, capable of controlling 11kW/400V motors, and has a built-in thermistor input, making it suitable for applications requiring real-time monitoring of motor temperature.

Core Product Advantages and Features

Thermistor input

It has a built-in PTC thermistor input terminal, which directly receives the motor winding temperature signal and activates when overheating occurs.

Electronic soft start

Electronic control smoothly boosts voltage, reducing instantaneous current surges and mechanical stress during startup.

24V control voltage

The control voltage is 24V AC/DC, which is compatible with common control circuit power supplies and facilitates integrated wiring.

Screw terminal design

Both the main circuit and control terminals use screw-type wiring, which facilitates installation and subsequent maintenance.

project	Specification
model	3RW4026-1TB04
Product Series	SIRIUS 3RW40
Frame size	S0
Rated current	25 A
Corresponding motor power	11 kW / 400 V
Rated operating voltage range	200-480 V AC
Control voltage	24 V AC/DC
Motor protection type	Thermistor (PTC) input
Terminal type	Screw terminals
Overload protection	Electronic overload relay

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3RW4026-1BB15

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3RW4026-1BB14

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