High Performance Motor Circuit Breakers

The 6NTD Series Motor Protection Circuit Breaker (also known as Motor Protector or Motor Starter) is applicable to circuits with an AC voltage up to 690V and a maximum current up to 80A. It is an integrated circuit breaker that combines the functions of an isolating switch, a circuit breaker, and a thermal relay in one unit. It features multiple protection functions including isolation protection, overload protection, temperature compensation, phase failure protection, and short-circuit protection.Application Scope: Direct starting and control of three-phase squirrel-cage asynchronous motors, protection of distribution lines, and infrequent load switching.

This product boasts a wide range of application scenarios. It is primarily suitable for the direct starting and control of three-phase squirrel-cage asynchronous motors, while also meeting the requirements for distribution line protection and infrequent load switching. It delivers exceptional performance across diverse fields such as industrial production lines, construction machinery, HVAC systems, water pump units, and compressors. Not only does it provide full-process safety protection during the direct motor starting process, preventing equipment damage caused by current fluctuations or faults at the moment of startup, but it also enables real-time monitoring of distribution lines during daily operation and supports infrequent load switching to accommodate the intermittent operation mode of equipment.

In addition, the product features a compact structure and easy operation, and can be flexibly installed in complete Switchgear cabinets, control boxes, and on-site control points. It satisfies the installation requirements of different scenarios, providing an efficient and reliable solution for motor control systems in multiple fields including industrial manufacturing, building complexes, and commercial facilities.