Soft starter - SIRIUS 200-480 V 315 A - SIEMENS
3RW50746AB14 is a soft starter from the SIRIUS range. This range is well known for its high-quality, reliable, and efficient motor control solutions, tailored to various industrial needs. it is designed for smooth starting of three-phase electric motors, which helps reduce mechanical and electrical stresses during motor start-up and shutdown.
Description
This starter is primarily used in industrial applications where soft starting and stopping are required.
It is particularly suitable for equipment such as pumps, fans, compressors, conveyors, and other industrial systems that require motor control with reduced inrush currents during startup.
3RW50746AB14 is ideal for applications where avoiding mechanical or electrical shocks is essential, improving equipment lifespan, and reducing maintenance costs.
Technical Specifications:
Power: Designed for motors up to 45 kW (approximately 60 horsepower) at 400 V.
Voltage range: Operates with a three-phase voltage from 380 to 480 V.
Rated current: Can handle a nominal current of up to 88 A, making it suitable for medium-sized applications.
Operating mode: The 3RW50746AB14 ensures a soft start by controlling motor torque, reducing inrush currents that can reach up to 6 to 7 times the motor's rated current.
Technology and Features:
Soft starting and stopping: The starter enables smooth motor start and stop by regulating acceleration and deceleration, reducing current peaks and mechanical shocks during startup.
Motor protection: Equipped with built-in protection features to guard against overloads, short circuits, or overheating, ensuring increased motor and system safety.
Reduced equipment wear: The soft start reduces mechanical stress and wear on motors, gear units, belts, etc., which helps extend the lifespan of system components.
Torque control: The 3RW50746AB14 offers precise torque control, which is especially useful in applications with variable loads or systems that require fine control.
Safety and Protection Features:
Short-circuit and overload protection: This model provides comprehensive motor protection against short circuits and overloads, preventing damage in case of failures or abnormal operating conditions.
Thermal protection: Equipped with a thermal relay to protect the motor against overheating risks, ensuring long motor life under optimal conditions.
Emergency stop: An integrated emergency stop function allows immediate motor shutdown when needed, ensuring installation safety.
Ease of Installation and Maintenance:
Simple and quick installation: The 3RW50746AB14 is designed for easy installation. It can be mounted in existing control panels and easily integrated into more complex motor control systems.
Easy maintenance: With built-in diagnostic functions, this starter facilitates preventive maintenance. It enables monitoring of motor operating parameters and quick detection of anomalies to minimize unexpected downtime.
Typical Applications:
- Pumps: Ideal for pumping systems where soft starts are necessary to avoid water hammer in pipes, reducing damage risks and improving installation longevity.
- Fans and compressors: In ventilation and compression applications, this starter enables controlled starting, reducing startup overloads and optimizing energy management.
- Conveyors and industrial machines: Also used in conveyor systems and machinery where smooth starting and stopping are crucial to ensure system safety and reduce component wear.
Energy Efficiency:
Reduced energy losses: The soft start function helps reduce energy losses by eliminating current peaks during startup, which can lead to inefficient energy use.
Optimized energy consumption: Torque and speed control allow motor operation to be adjusted based on the specific needs of the application, helping to optimize energy consumption.
Additional Benefits:
- Compact and robust: The 3RW50746AB14 is compactly designed to save space in control panels while being robust enough to withstand harsh industrial operating conditions.
- Standards compliance: This model complies with international safety and performance standards, ensuring its integration into regulated industrial environments.
3RW50746AB14 from Siemens is a soft starter from the SIRIUS range, designed to offer smooth startup and enhanced protection for three-phase motors up to 45 kW.
It is especially suitable for industrial applications where start and stop control is essential to extend equipment life and optimize energy efficiency.
With protection against short circuits, overloads, and overheating, it ensures reliable and safe motor operation in various applications such as pumps, fans, and conveyors.