S(D)L series Leakage circuit breakers are suitable for AC 50Hz, rated voltage up to 400V, rated insulation voltage 690V, rated current 16-800A. In addition to the function of overload, short-circuit and under-voltage protection, the products have electric shock and leakage protection function and can prevent the fire caused by the aging insulation equipment. Mainly used as motor and circuit overload, short-circuit protection motor protection.
GB/T14048.1《Low-voltage switchgear and controlgear—General rules》
GB14048.2 《Low-voltage switchgear and controlgear— Low-voltage circuit breaker》
GB14048.4 《Low-voltage switchgear and controlgear—Low-voltage mechanical breaker and motor starter 》
GB14048.5《Low-voltage switchgear and controlgear—Control circuit devices and switching elements-Section1- Electromechnaicial control circuit devices》
G6829 《General requirements for residual current operated protective devices》
GB16916.1《Residual current operated circuit breakers without integral over-current protection for householdand similar uses Part one: General rules》
We specialize in the production of primary power equipment, including metal oxide surge arrester（MOA）， polymer housed metal oxide arrester for transmissionlines, metal oxide varistor,on-line monitors for surge arrester and surge arrester monitor and so on.
After 30years technical innovation and industrial transformation, we have yearly production capacity for 4.5 million pieces ofΦ32-128metal oxide varistor (MOV), 0.5 million sets of 0.22-1000KV metal oxide surge arrester.
Our main products have passed ISO9001 quality management system certificate, ISO14001 environment management system certificate, OHS18001 occupational health and safty management system certificate and KEMA Netherland certificate.
Our arrester market share reaches above 32% in China market, especially 500KV surge arrester bid winning rate in the scale bidding of state grid corporation of China in the lastest three years, was the top one during the same industry in China.