XMC65B MCB Circuit Breaker Thermal Tripping Mechanism

Short Description:

PRODUCT NAME: MCB Circuit Breaker Thermal Tripping Mechanism

MODE NO.: XMC65B

MATERIAL: COPPER, PLASTIC

SPECIFICATIONS: 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A

APPLICATIONS: MCB, MINIATURE CIRCUIT BREAKER

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Product Detail

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Introduction

An MCB operates as an automatic switch that opens in the event of excessive current flowing through the circuit and once the circuit returns to normal, it can be reclosed without any manual replacement.

Under normal working conditions, MCB operates as a switch (manual one) to make the circuit ON or OFF. Under overload or short circuit condition, it automatically operates or trips so that current interruption takes place in the load circuit.

The visual indication of this trip can be observed by automatic movement of the operating knob to OFF position. This automatic operation MCB can be obtained in two ways as we have seen in MCB construction; those are magnetic tripping and thermal tripping.

Under overload conditions, the current through the bimetal causes it to raise the temperature of it. The heat generated within the bimetal itself is enough to cause deflection due to thermal expansion of metals. This deflection further releases the trip latch and hence contacts get separated.

Details

XMC65B MCB Circuit Breaker Thermal Tripping Mechanism consists of bimetall strip, soft connection, arc runner, braid wire, moving contact and moving contact holder.

When the overflow of current takes place through MCB – Miniature Circuit Breaker, the bimetallic strip gets heated and it deflects by bending. The deflection of the bi-metallic strip releases a latch. The latch causes the MCB to turn off by stopping the flow of the current in the circuit.

Whenever continuous over current flows through MCB, the bimetallic strip is heated and deflects by bending. This deflection of bi-metallic strip releases a mechanical latch. As this mechanical latch is attached with the operating mechanism, it causes to open the miniature circuit breaker contacts, and the MCB turns off thereby stopping the current to flow in the circuit. To restart the flow of current the MCB must be manually turned ON. This mechanism protects from the faults arising due to over current or overload and short circuit.

Our Advantages

1. Product Customization

Custom MCB parts or components are available upon request.

① How to customize the MCB parts or components?

Customer offers the sample or technical drawing, our engineer will make few samples for testing in 2 weeks. We will start making the mould after customer checks and confirms the sample.

② How long we take to make a new MCB parts or components？

We need 15 days to make sample for confirming. And making a new mould needs about 45 days.

2. Mature Technology

① We have technicians and toolmakers who can develop and design all kinds of MCB parts or components according to different requirements in the shortest time. All you need to do is to offer samples, profile or drawings.

② Most of the productions are automatic which can lower the cost.

3.Quality Control

We control the quality by many inspections. Firstly we have a incoming inspection for the raw material. And then process inspection for the rivet and stamping. Finally there is final statistical audit.