Electrical Household Miniature Circuit Breaker Air Breaking Overload Protection

household miniature circuit breaker air breaking electrical short circuit and overload protection circuit breaker DZ47

Working principle of product

A small circuit breaker is the principle that the bimetal bending is directed regularly with the increase of temperature. When the circuit breaker is closed in normal working condition, the internal bimetallic sheet is heated by a certain current, and the thermal expansion coefficient of the two bimetalles is different. It is not enough to release the release mechanism. When the line appears general overload, when the overload current is reached, the bimetallic sheet has a larger bending angle and a lever in the release mechanism, which is enough to push off the release mechanism, and from the small circuit breaker, it plays the role of super load protection. The size of the bimetallic strip is different from that of the small circuit breaker.

Product features

1. band energy storage mechanism operation, contact close fast

2. High limiting coefficient

3. advanced production process and beautiful appearance

Product specification

Brief introduction

DZ47 circuit breaker adopts special arc extinguishing and current limiting system. It can quickly break down the fault current of DC distribution system and make the differential coordination greatly improved. The circuit breaker is especially aimed at accidents between the measuring and holding screen and the split screen in the power engineering DC system. The circuit breaker has excellent performance and can avoid the above failure. The differential coordination characteristics of circuit breakers are the best products at home and abroad.

Use of attention

1. the circuit breaker needs to check contacts after the circuit is short circuited. If the main contact burns seriously or has pits, it needs to be repaired.

2. the circuit breaker is broken due to the failure of the protection circuit (leakage, overload or short circuit), then the handle is in the release position (middle position). After finding out the cause of the failure, the operating handle should be pulled down (or placed in the "sub" position), and the operation mechanism can be closed after the operation (please pay attention to the different meanings of the three positions of the operating handle of the circuit breaker).

3. if the circuit breaker can't be broken, it means that the circuit breaker or line is defective. It needs to be overhauled.

Company profile

Thor is all about protecting against the damaging effects of power transients. It is our goal and mission to connect our customer challenges with high-quality, right-priced solutions and products – completed by unrivaled customer service and technical support.

Incorporated in 2006, Zhejiang Thor Electric Co., Ltd has built everything to offer a wide range of innovative and reliable surge protection solutions and products.

Thor is following the international quality system standards, is ISO 9001 certified and our technical standards are in line with GB18802.1-2011/IEC61643-1.

All types and classes of our lightning and surge arresters 20KA~200KA(8/20μS) and 15KA~50KA(10/350μS) are tested and pass all the requirements based on their class.

Thor has been designing new products to meet the RoHS directive since 2006. Thor’s ongoing commitment to RoHS compliance includes continuing efforts to reduce the presence of hazardous substances in the design and manufacture of a growing number of popular products.

Zhejiang Thor Electric Co., Ltd is committed to meeting the requirements of the European Union’s Waste Electrical and Electronic Equipment (WEEE) directive. This directive requires producers of electrical and electronic equipment to finance the take-back for re-use or recycling of their products placed on the EU market after 2005.