Shunt Trip Ac Mccb

The shunt trip AC MCCB from China supplier CNKA is in stock and designed for circuits with a rated insulation voltage of 660V, a working voltage up to 400V, and a working current up to 125A. It is ideal for infrequent motor switching and starting. This MCCB includes features such as overload long delay, inverse time protection, short circuit short delay, inverse time protection, instantaneous protection, and undervoltage protection. Optional residual current and phase loss protection functions are available to safeguard circuits and power equipment from damage. With its comprehensive protection characteristics, the shunt trip AC MCCB enhances power supply reliability and minimizes unnecessary outages. Additionally, it boasts a compact size, high breaking capacity, short arc, and resistance to vibrations. 

CNKAshunt trip ac mccb Parameter (Specification)

CNKAshunt trip ac mccb Feature

1. Complies with IEC947-2 specifications.

2. Includes an arc short circuit function.

3. Designed with anti-vibration capabilities.

4. Compatible with accessories for voltage loss and undervoltage protection functions, which can be connected and installed.

CNKAshunt trip ac mccb Details

CNKAshunt trip ac mccb Dimensions

CNKAshunt trip ac mccb FAQ

Q: How do I choose an MCB for DC?
A: To select the appropriate MCB for a DC circuit, first determine the total current of the circuit. The MCB should then be chosen based on this current. It’s crucial that the MCB’s current rating does not exceed the cable’s current carrying capacity. Properly matching the MCB’s rating with the cable capacity is essential to prevent potential hazards or damage.

Q: What are the advantages of a DC circuit breaker?
A: DC circuit breakers offer two primary benefits: they protect individual DC-powered loads and safeguard main circuits such as those in inverters, solar PV arrays, or battery banks.

Q: What is the capacity of a DC MCB?
A: When choosing a DC MCB, consider the required breaking capacity for your application. Residential DC MCBs usually have a breaking capacity up to six kA, while industrial DC MCBs are designed for higher capacities. It’s important to select a DC MCB with an appropriate breaking capacity to ensure the safe and reliable operation of the circuit.