3RW4038-1BB14

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The Siemens 3RW4038-1BB14 is a SIRIUS soft starter designed for standard applications, providing smooth and efficient motor control. With a current rating of 72A at 40°C, this soft starter is suitable for 3-phase motors with a power output of up to 37kW at 400V. The device operates within a voltage range of 200-480The Siemens 3RW4038-1BB14 is a SIRIUS soft starter designed for standard applications, providing smooth and efficient motor control. With a current rating of 72A at 40°C, this soft starter is suitable for 3-phase motors with a power output of up to 37kW at 400V. The device operates within a voltage range of 200-480V and offers an adjustable motor overload protection, ensuring optimal performance and safety. The 3RW4038-1BB14 features an integrated bypass contact system and thyristors, as well as self-protection and external reset capabilities. The control voltage is AC/DC 110-230V, making it compatible with a wide range of control systems. Designed for easy installation, the 3RW4038-1BB14 utilizes screw connections for a secure and reliable setup. Enhance your motor control and protection with the Siemens 3RW4038-1BB14 soft starter.
Specification Description
Part Number 3RW4038-1BB14
Alternative Part Number 3RW40381BB14
Manufacturer Siemens
Category Soft Starters
Operating Voltage 200 - 480 V
Control Supply Voltage 110 - 230 V AC/DC
Rated Current at 40°C 72 A
Rated Current at 50°C 62 A
Rated Current at 60°C 60 A
Operating Frequency 50 - 60 Hz
Mechanical Power at 230 V, 40°C 22 kW
Mechanical Power at 400 V, 40°C 37 kW
Yielded Mechanical Performance 20 hp (200 V), 20 hp (230 V), 40 hp (460 V)
Adjustable Rated Current (min) 35 A
Continuous Operating Current at 40°C 115% of l_e
Active Power Loss (typical) 15 W
Integrated Bypass Contacts Yes
Built-in Thyristors Yes
Electronic Device Self-Protection Yes
Motor Overload Protection Yes
External Reset Yes
Adjustable Current Limiting Yes
Output for Motor Brake No
Motor Protection Thermistor No
Internal Delta Connection No

What is the main function of this soft starter?

The Siemens 3RW4038-1BB14 soft starter is designed to control and smoothly start three-phase induction motors, reducing mechanical stress on the motor and connected equipment during startup.

What is the operating voltage range for this soft starter?

The Siemens 3RW4038-1BB14 soft starter has an operating voltage range of 200-480V AC in standard connection.

What is the current rating for this soft starter?

The current rating for the Siemens 3RW4038-1BB14 soft starter is 72A at 40°C, 62A at 50°C, and 60A at 60°C.

What is the power rating for a three-phase motor connected to this soft starter?

The Siemens 3RW4038-1BB14 soft starter can provide 22,000W (22kW) at 230V and 37,000W (37kW) at 400V for a three-phase motor at 40°C.

What is the control voltage range for this soft starter?

The control voltage range for the Siemens 3RW4038-1BB14 soft starter is 110-230V AC/DC.

Does this soft starter have built-in motor overload protection?

Yes, the Siemens 3RW4038-1BB14 soft starter has built-in motor overload protection to ensure safe operation.

Can the current rating be adjusted for motor overload protection?

Yes, the Siemens 3RW4038-1BB14 soft starter allows for adjustable motor current rating for overload protection, with a minimum of 35A.

Is there an integrated bypass contactor system in this soft starter?

Yes, the Siemens 3RW4038-1BB14 soft starter has an integrated bypass contactor system for efficient operation.

  • Motor control in conveyor systems
  • Pump control in water treatment plants
  • Fan control in HVAC systems
  • Compressor control in refrigeration systems
  • Speed control for mixers and agitators
  • Control of crushers and mills in mining applications
  • Soft starting of motors in general industrial applications
  • Energy-saving motor control in manufacturing plants

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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