SIRIUS soft starter S0 25 A-3RW4026-1TB05

Product Description

SIRIUS Soft Starter S0 25 A – 3RW4026-1TB05

The Siemens 3RW4026-1TB05 is a reliable SIRIUS soft starter from the 3RW40 series, designed for smooth starting and stopping of three-phase induction motors up to 15 kW (500 V). It helps reduce starting current, mechanical stress, and voltage dips, ensuring safe and efficient motor operation in industrial applications.

This model belongs to the S0 frame size, making it suitable for compact and space-saving control panel designs. It is widely used in pumps, fans, compressors, conveyors, HVAC systems, and industrial machinery, where controlled acceleration and deceleration improve system life and performance.

🔹 Key Features

• Siemens SIRIUS 3RW40 series soft starter
• Part Number: 3RW4026-1TB05
• Frame size: S0
• Rated current: 25 A
• Motor power: Up to 15 kW at 500 V / approx. 11 kW at 400 V
• Supply voltage: 400–600 V AC, 3-phase
• Control voltage: 24 V AC/DC
• Soft start and soft stop function for smooth motor control
• Integrated bypass contact system for reduced heat loss after starting
• Thyristor-based voltage ramp control
• Built-in motor protection and thermistor input support
• Adjustable current limiting and ramp time settings
• Compact modular design for easy panel installation
• Screw terminal connections for secure wiring
• Complies with IEC 60947-4-2 standards