China wholesale Arc Extinguishing Chamber For Moulded Case Circuit Breaker Factory – Arc chamber for air circuit breaker XMA8GB – Ximu

Introduction

The mechanism of arc chamber is used to form a cavity to discharge gas outward,so the high-temperature gas can be discharged quickly, and the arc can be accelerated to enter the arc chamber.  The arc is divided into many serial short arcs by metal grids, and the voltage of each short arc is reduced to stop the arc.  The arc is drawn into the arc chamber and cooled by grids to increase the arc resistance.

Details

Mode No.: XMA8GB

Material: IRON DC01, BMC,INSULATION BOARD

Number of Grid Piece(pc): 17

Weight(g): 662.5

Size(mm): 87*59.5*87

Cladding: BLUE WHITE ZINC

Electroplating: The grid piece can be plated by zinc, nickel or other kinds of cladding material as customer required.

Place of Origin: Wenzhou, China

Applications: MCB, miniature circuit breaker

Brand Name: INTERMANU or customer’s brand as required

Samples: Samples are free, but customer need to pay for the freight charge

Lead Time: 10-30 days is needed

Packing: Firstly they will be packed in poly bags and then cartons or wooden pallet

Port: Ningbo, Shanghai, Guangzhou and so on

MOQ: The MOQ depends of different kinds of product

Product Characteristic

Based on the principle of arc extinguishing, to choose the reasonable arc extinguishing system, that is, the structure design of arc extinguishing chamber.

The structure of the metal grid arc chamber : the arc chamber is equipped with a certain number of steel plates (magnetic materials) of 1~2.5mm thickness. The surface of the grid is zinc, copper or nickel plated. The role of electroplating is not only to prevent rust, but also to increase the arc extinguishing ability (copper plating on steel sheet is only a few μm, it will not affect the magnetic conductivity of steel sheet).  Copper plating and zinc plating have the same function in breaking current. But when plated by copper, the heat of the arc will make the copper powder run to the contact head, make it into copper silver alloy, which will cause bad consequences.  Nickel plating perform well, but the price is high.  During installation, the upper and lower grids are staggered, and the distance between the grids is optimized according to different circuit breakers and different short-circuit breaking capabilities.