Motor starter (3-phase) 3 kW INM 3-8-400

Motor chokes – protection and optimization of motor operation

A 3-phase output choke (motor choke) with a power of 3 kW, model INM 3-8-400, is a component designed to reduce overvoltages and harmonics in the power supply circuits of induction motors. Its task is to ensure smooth and stable motor operation, as well as protection against damage caused by disturbances in the power supply network.

This choke finds application in various industrial and commercial installations where reliability and energy efficiency are required.

Construction and application

The INM 3-8-400 choke is characterized by a solid construction based on a winding made of high-quality materials. Its main task is to limit inrush currents during motor start-up, which reduces the load on the power supply network and extends the service life of both the motor and other installation elements. This makes it possible to avoid unnecessary downtime and costly repairs.

The choke design allows for the suppression of electromagnetic interference generated by the motor, which improves the quality of energy in the network and reduces interference with other devices. Mounting the choke near the motor minimizes the impact of harmonics on its operation, which translates into increased energy efficiency and stability of operating parameters.

Key features and benefits

• Overvoltage limitation: Effectively suppresses overvoltages occurring during motor switching on and off, protecting it against insulation damage.
• Harmonic reduction: Minimizes the impact of harmonics on the quality of energy in the power supply network, improving its parameters.
• Increased service life: Protecting the motor against interference extends its service life and reduces the risk of failure.
• Stable operation: Provides stable operating conditions for the motor, which translates into precision of operation and reliability of the system.
• Dimensions: Compact dimensions (H: 155 mm, B: 8 mm, e: 55 mm, f: 150 mm) facilitate mounting in tight spaces.
• Weight: Low weight (2.6 kg) facilitates transport and installation.
• Connections: Equipped with 8x12 mm² connections, ensuring easy connection to power supply cables.

The INM 3-8-400 choke is a reliable solution for every installer and end-user looking for effective protection for their induction motors. Its solid construction and high quality of workmanship guarantee long-lasting and trouble-free operation in demanding industrial conditions.