Description
The Siemens SIRIUS 3RW4027-1BB15 Soft Starter (S0 32A, 18.5kW) is a compact and reliable motor controller designed for smooth acceleration and deceleration of three-phase AC motors. This soft starter is rated for 32A operational current and supports motors up to 18.5kW at 400V AC, effectively reducing mechanical stress on drive components and limiting inrush currents. Featuring an integrated bypass contactor, intuitive parameter setting via rotary switches, and a robust metal housing, it provides a cost-effective solution for standard motor starting applications. Its compact S0 size design with internal cooling and DIN rail mounting ensures easy installation in space-constrained control panels, making it ideal for various industrial automation environments.
Key Features
- Soft Starter with S0 compact design for motors up to 18.5kW
- Rated Operational Current: 32A (AC-53a at 400V)
- Motor Power: Up to 18.5kW at 400V AC
- Integrated Bypass Contactor for efficient operation
- Intuitive Parameter Setting via rotary switches
- Control Supply Voltage: 24-240V AC/DC (self-adjusting)
- Robust Metal Housing for industrial environments
- Internal Cooling system
- DIN Rail Mounting
- Country of Origin: Germany
Technical Specifications
- Display: 7-inch TFT color display
- Resolution: 800 x 480 pixels
- Colors: 65536 colors
- Touch Screen: 4-wire resistive
- Interfaces: PROFINET, MPI/PROFIBUS-DP
- Memory: 4 MB user memory
- Operating System: Windows CE 6.0
- Power Supply: 24V DC
- Operating Temperature: 0°C to +50°C
- Protection Degree: Front IP65, NEMA 4/12
- Dimensions: 214mm x 158mm x 46mm (W x H x D)
- Weight: approx. 1.2 kg
- Standards: CE, UL, CSA, RoHS compliant
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Technical support for configuration and integration
- Wiring and installation assistance
- Compatibility verification with existing systems
- Commissioning and diagnostics support available
Delivery Time
- Standard delivery: 3-5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens SIRIUS components
- Global supply network with competitive pricing
- Expertise in industrial automation systems
- Comprehensive technical documentation
- Responsive customer service and support
Applications
- Conveyor belt drives
- Pump and fan control
- Compressor starting systems
- Mixer and agitator drives
- Material handling equipment
- HVAC systems
- Food and beverage processing machinery





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