Three-phase EMI filter targets neutral line noise

EMIS has announced the availability of the TMF4233 Three-Phase EMI Filter with Neutral, designed for use in systems where noise may arise not only from phase wires but also from the neutral line, thereby enhancing overall noise suppression.

This series is mainly used in industrial equipment, machinery, machine tools and various process automation systems with three-phase and neutral configuration. Due to its exceptional attenuation performance, the device is also the preferred choice for noisy power supplies, renewable energy applications, and high-power office equipment.

The device features a compact, lightweight, and space-efficient design for ease of integration, optimised for industrial machinery and designed to handle high currents of up to 600A, typically in industrial, commercial, and large-scale equipment. The device delivers excellent suppression of high-frequency noise from switching power supplies, motors, inverters, and other industrial equipment and is particularly suited for complex machines where the overall insulation resistance needs to be higher than 1MΩ.

Typical applications include:

• Entire factories, plants and installations
• Large UPS
• Industrial machinery
• High-power motor drives and inverters
• Renewable energy systems
• Power supplies and UPS systems
• Data Centres
• Industrial three-phase systems
• Mining equipment

The TMF4233 is designed for chassis mounting and has an operating voltage of 520VAC at up to 600A over the frequency range of 50/60Hz. The reliable terminal blocks comply with EN60204-1 standards for industrial use and ensure secure connections.