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Siemens SIRIUS 3RW4026-2BB05 Soft Starter - 25A, 15kW

Siemens SIRIUS soft starter for 15kW motors, S0 size, 25A.

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ManufacturerSiemens

Part number3RW4026-2BB05

Size S0

Rated Current 25 A

Max Motor Power 15 kW (at 500 V)

Voltage 400-600 V AC

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Smooth motor acceleration Reduced mechanical stress Minimized voltage dips Spring-type terminals Compact S0 size 24V AC/DC control

Product description

The Siemens SIRIUS 3RW4026-2BB05 is a compact soft starter designed for smooth acceleration and deceleration of three-phase motors. This S0 size starter is rated for a motor power of 15 kW at 500 V and a continuous current of 25 A at 40°C. It operates with a control voltage of 24 V AC/DC and features easy-to-use spring-type terminals for quick installation.

Ideal for applications where high starting torques can cause mechanical stress or electrical disturbances, this soft starter is used in pump controls, conveyor systems, fans, and compressors. It helps reduce mechanical wear and tear on machinery and minimizes power line voltage dips during motor startup.

Stanlo Automation, a veteran-owned supplier of industrial automation parts, provides the Siemens SIRIUS 3RW4026-2BB05 soft starter. We offer reliable surplus components to keep your systems running efficiently and cost-effectively.

Technical specifications

Size	S0
Rated Current	25 A
Max Motor Power	15 kW (at 500 V)
Voltage	400-600 V AC
Control Voltage	24 V AC/DC
Terminals	Spring-type
Operating Temp	40 °C

Common applications

Pump control

Fan control

Conveyor systems

Compressors

Material handling

Motor starting

Compatible systems

Three-phase induction motors, Siemens PLC systems

Also known as

Siemens SIRIUS soft starter 25A 3RW40 soft starter S0 soft starter 15kW

Replaces / compatible with

Direct replacement for other Siemens SIRIUS 3RW40 series soft starters of equivalent rating. Compatible with standard motor control circuits.

Technical note

Expert tip

Ensure proper wiring of the control voltage (24V AC/DC) and motor power connections for safe and effective operation.

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Frequently asked questions

What is the maximum motor power for the Siemens 3RW4026-2BB05?

The Siemens 3RW4026-2BB05 SIRIUS soft starter is designed for motors up to 15 kW at 500 V. It has a rated current of 25 A and operates with 400-600 V AC supply and 24 V AC/DC control voltage.