3RW5226-1AC14

The SIRIUS 3RW5226-1AC14 has a rated current of 77A, is suitable for 200-480V main circuits, and has a power of approximately 75kW. It features screw terminals and analog output design, has a relatively simple appearance, and is suitable for the starting and stopping control needs of small and medium-sized three-phase motors.

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Siemens SIRIUS 3RW5226-1AC14 soft starter appearance diagram

Product Positioning

The 3RW5226-1AC14 is a soft starter in the SIRIUS 3RW52 series with a lower current rating. It has a rated current of 77A and a power of approximately 75kW, making it suitable for soft starting applications of small and medium-sized three-phase motors in limited panel space.

Core Product Advantages and Features

Simplified exterior design

With a relatively compact size, it is suitable for use in distribution panels or machine rooms with limited installation space.

Small and medium current correspond

With a rated current of 77A and a power of approximately 75kW, it is suitable for small and medium-sized motor loads such as water pumps and fans.

Analog output monitoring

It provides analog output signals, making it easy to connect to existing monitoring systems to understand their operational status.

Screw terminal wiring

The screw terminal design simplifies on-site wiring and regular maintenance.

project	Specification
Rated current	77 A (40°C)
Applicable main circuit voltage	200–480 V AC
Control power supply voltage	110–250 V AC
Power (480V rating)	Approximately 75 kW
Product Series	SIRIUS 3RW52
Terminal type	Screw terminals
Output type	Analog output
Communication Interface	Optional PROFINET / PROFIBUS / Modbus TCP module
Protection level	IP00
Casing size	Approximately 185 x 203 x 305.6 mm
Applicable to	Three-phase asynchronous motor start/stop control

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