3RW4055-6BB44

Siemens 3RW4055-6BB44 available at EU Automation. Get in touch today for a quick price.

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The Siemens 3RW4055-6BB44 is a SIRIUS soft starter designed for efficient and reliable motor control in various industrial applications. With a current rating of 134A at 40°C, this soft starter is suitable for 75kW/400V three-phase motors, ensuring smooth and controlled acceleration and deceleration. The device features integrated bypass contacts and thyristors for enhanced performance and protection.

The 3RW4055-6BB44 offers adjustable current limiting, overload protection for the motor, and an external reset function. It operates within a frequency range of 50-60Hz and a voltage range of 200-460V AC. The soft starter is equipped with screw terminals for easy installation and has a compact design with dimensions of 120mm width, 198mm height, and 250mm depth.

Designed for durability and efficiency, the Siemens 3RW4055-6BB44 soft starter is an ideal solution for motor control in various industrial settings.
Specification Description
Part Number 3RW4055-6BB44
Alternative Part Number 3RW40556BB44
Manufacturer Siemens
Product Name SIRIUS Soft Starter
Size S6
Width 120 mm
Height 198 mm
Depth 250 mm
Mounting Type Screw Mounting
Installation Position Vertical with +/-90° rotation and +/-22.5° tilt
Operating Current at 40°C 134 A
Motor Power at 400V 75 kW
Frequency Range 50-60 Hz
Operating Voltage Range 200-460 V AC
Control Voltage 230 V AC
Main Circuit Poles 3
Auxiliary Contacts (NO) 2
Auxiliary Contacts (NC) 0
Auxiliary Contacts (Changeover) 1
Cable Length (max) 300 m
Installation Altitude (max) 5,000 m
Integrated Bypass Contact System Yes
Overload Motor Protection Yes
External Reset Yes
Adjustable Current Limitation Yes
Connection Type (Main Circuit) Busbar Connection
Connection Type (Auxiliary Circuit) Screw Connection
  • Motor control in industrial automation systems
  • Pump control for water treatment and distribution
  • Conveyor belt systems in manufacturing plants
  • Fan and blower control in HVAC systems
  • Compressor control in refrigeration and air conditioning systems
  • Lift and elevator motor control
  • Crusher and mill operation in mining and heavy industries
  • Extruder control in plastic and rubber manufacturing

This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.

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