AC400V MCCB: the backbone of industrial power distribution

In the field of low-voltage power distribution, AC400V MCCBs have become standard configurations for various electrical systems due to their reliable performance. This circuit breaker with a rated voltage of 400V perfectly balances performance and cost considerations and is widely used in power distribution occasions such as factories and buildings.

What is the core value of AC400V MCCB?

The key is that it provides just the right level of protection. For a 380V three-phase system, the 400V rated voltage leaves a reasonable safety margin. Its thermal-magnetic tripping mechanism can quickly respond to short-circuit faults and identify overload conditions. Modern models also add adjustable tripping characteristics to meet the protection needs of different loads.

This type of circuit breaker has three main advantages:

1. Compact structure, saving distribution cabinet space

2. Breaking capacity covers different needs of 15kA-100kA

3. Expandable auxiliary contacts, alarm modules and other accessories

From production line power distribution to commercial center power supply, AC400V MCCBs protect the safety of power systems with stable performance. With the development of intelligence, the new generation of products has begun to integrate power monitoring functions, allowing traditional protection equipment to participate in energy management.

 Zhejiang Dongan Electrical Co., Ltd is a modern enterprise specializing in electrical appliance design,manufacturing sales and service. The company produces series products of AC MCCB，AC ELCB，AC ACB,DC MCCB. The company can also provide thermosetting Compression，Mental Stamping and moulds and parts. The products are covered by CE CB TUV CCC certificates.

Visit our website at https://www.greenwatt-circuitbreaker.com/ to learn more about our products. For inquiries, you can reach us at greenwatt@cngreenwatt.com.