Description
The Siemens 3RW50 series soft starters, including the models 3RW5073-6TB14, 3RW5076-6TB18, 3RW5076-2AB14, 3RW5074-2AB14, 3RW5075-2AB14, and 3RW5073-6AB04, are high-performance motor controllers designed for smooth acceleration, deceleration, and protection of three-phase AC induction motors. They effectively reduce mechanical stress on driven equipment and minimize electrical inrush current, extending the lifespan of motors and mechanical components. Part of the SIRIUS modular system, these soft starters are ideal for applications involving pumps, fans, compressors, and conveyor belts, where controlled starting and stopping are critical.
Key Features
- Soft Starter for three-phase AC induction motors
- Current Range: 24A to 820A (covering models from 3RW5073 to 3RW5076)
- Control Functions: Soft start, soft stop, pump control, and braking
- Protection Features: Overload, phase loss, and phase asymmetry protection
- Control Voltage: 24V DC / 110-240V AC (model dependent)
- Communication: PROFIBUS DP and PROFINET options (via communication modules)
- Mounting: DIN rail or screw mounting
- Country of Origin: Germany
Technical Specifications
Parameter | 3RW5073-6TB14 | 3RW5076-6TB18 | 3RW5076-2AB14 | 3RW5074-2AB14 | 3RW5075-2AB14 | 3RW5073-6AB04 |
|---|---|---|---|---|---|---|
Rated Current (Ie) | 250 A | 470 A | 470 A | 315 A | 370 A | 250 A |
Rated Power (400V) | 160 kW | 315 kW | 315 kW | 200 kW | 250 kW | 160 kW |
Control Voltage | 110-240V AC | 110-240V AC | 110-240V AC | 110-240V AC | 110-240V AC | 24V AC/DC |
Terminal Type | Screw | Screw | Spring | Spring | Spring | Screw |
Special Features | Thermistor Input | Thermistor Input | Analog Output | Analog Output | Analog Output | Analog Output |
Dimensions (WxHxD) | Approx. 150mm x 280mm x 225mm | Approx. 150mm x 280mm x 225mm | Approx. 150mm x 280mm x 225mm | Approx. 150mm x 280mm x 225mm | Approx. 150mm x 280mm x 225mm | Approx. 150mm x 280mm x 225mm |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Technical support for configuration and installation
- Wiring and parameter setting assistance
- Compatibility verification with existing motor and control 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 components
- Global supply network with competitive pricing
- Expertise in motor control and automation systems
- Comprehensive technical documentation
- Responsive customer service and support
Applications
- Pump control in water and wastewater systems
- Fan and blower control in HVAC systems
- Conveyor belt systems in material handling
- Compressor control in industrial air systems
- Mixer and agitator control in process industries
- Crusher and mill control in mining and aggregates
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