ОПИСАНИЕ ПРОДУКТА
SIEMENS 3RW4445-6BC44 - Soft Starter
The SIEMENS SIRIUS 3RW4445-6BC44 is a high-performance solid-state soft starter designed for controlled acceleration and deceleration of three-phase induction motors. This device mitigates current peaks and mechanical stress during motor startup and shutdown, extending equipment lifespan and optimizing operational efficiency. It integrates advanced control algorithms, comprehensive motor protection, and a PROFIBUS DP interface for seamless integration into industrial automation systems, making it suitable for demanding applications such as pumps, fans, compressors, and conveyors.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3RW44
- COMPONENT TYPE: Soft Starter
- ELECTRICAL SPECS:
- OPERATIONAL VOLTAGE RANGE: 200-460V AC, 3-phase
- RATED OPERATIONAL CURRENT (Ie): 170 A (at 400V, 40°C)
- CONTROL SUPPLY VOLTAGE: 24V AC/DC
- TYPICAL MOTOR POWER RATING: 90 kW (at 400V, standard duty)
- FREQUENCY: 50/60 Hz
- MECHANICAL/PHYSICAL:
- STARTING METHOD: Voltage ramp, current limit, torque control
- BYPASS: Integrated bypass contactor for reduced power dissipation during run
- OVERLOAD PROTECTION: Integrated electronic motor overload protection
- INTERFACE/CONTROL:
- COMMUNICATION PROTOCOL: PROFIBUS DP
- I/O: Digital inputs and outputs for control and status signaling
- FEEDBACK: Integrated current monitoring and diagnostic functions
- CONNECTION TYPE: Screw terminals for main and control circuits
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP00 (terminals typically IP20)
- COOLING METHOD: Natural convection (forced air cooling may be required under specific load or ambient conditions)
- MOUNTING STYLE: Vertical panel mounting
- OPERATING TEMPERATURE: -25 to +60 °C (with derating above 40°C)
- COMPATIBILITY/APPLICATION: Three-phase induction motors in applications requiring reduced starting current, smooth acceleration, and controlled deceleration, including pumps, fans, compressors, conveyors, and general machine tools. Optimized for integration into PROFIBUS-based control architectures.