3RW4037-1BB04

The Siemens 3RW4037-1BB04 is a high-quality soft starter designed for seamless integration into various industrial motor starting applications. This Sirius soft starter is engineered to provide efficient control and protection for three-phase motors, with an operational current rating of up to 63 A and a power output capacity of 30 kW at 400 V in a standard circuit at 40°C.

Crafted for durability and reliability, the 3RW4037-1BB04 features an integrated bypass contact system and thyristors, ensuring smooth operation and longevity. The device offers intrinsic device protection and motor overload protection, safeguarding your equipment against potential damage caused by electrical faults.

With an adjustable current limitation, this soft starter allows for precise control over the starting and stopping of motors, reducing mechanical stress on the motor and the driven equipment. It operates within a voltage range of 200 to 480 V and can handle a minimum load of 20% of the motor current, making it versatile for a wide range of applications.

The 3RW4037-1BB04 is designed with a compact form factor, measuring 55 mm in width, 160 mm in height, and 170 mm in depth, which allows for easy installation in space-constrained environments. The unit can be mounted using screw and snap-on methods, providing flexibility in installation.

This soft starter is suitable for use in various industrial environments, with an operating temperature range of -25 to +60°C and a storage temperature range of -40 to +80°C. It also features a degree of pollution of 3, according to IEC 60947-4-2, ensuring it can withstand challenging industrial conditions.

The Siemens 3RW4037-1BB04 is a robust and efficient solution for motor control applications, offering enhanced performance and protection to meet the demands of modern industrial settings.

• Starting of three-phase induction motors in applications to reduce mechanical stress on the motor and the driven machine
• Gradual ramp-up of motor speed to prevent water hammer in pump systems
• Soft stopping of motors to avoid abrupt halting in conveyor systems
• Control of electric motors in fans and blowers to reduce noise and vibration during start-up
• Managing the start-up of compressors to limit inrush current and reduce wear
• Use in applications requiring smooth acceleration and deceleration of heavy loads, such as crushers and mixers
• Integration into HVAC systems for controlled starting of large air conditioning units
• Implementation in material handling systems to provide gentle handling of products during start and stop operations
• Utilisation in the textile industry to protect delicate machinery and fabrics during machine start-up
• Starting of motors in the food and beverage industry where controlled start-up is necessary to maintain process integrity