产品概述 Product general

DZ15LD是我公司生产的一款多功能自动保护开关，集断相、漏电保护为一体。即可对运行在交流380V、50Hz的线路中对电动机进行多方面的自动保护，又可以作为不频繁启动电动机的开关，并且对配电变压器的跌落开关掉闸或总保险丝熔断而引起的多合电动机缺相运行导致变压器过流损坏的事故能起到一定预防作用。

此保护开关的优点是解决了市场上多种开关高压断相(跌落开关掉闸)不起作用的难题。无论是高压跌开掉闸，低压保险丝烧坏，电机三相绕组一相不通电造成单相运行，都能可靠的起到保护作用。

DZ15LD is a multifunctional automatic protection switch produced by our company, which integrates phase interruption andleakage protection. lt can automatically protect motors in 380V and 50Hz AC lines in many aspects,and can alse be used as aswitch for starting motors infrequenty. lt can also play a certain role in preventing transformer over-current damage accidents

caused by multiple motors running without phase due to drop switch of distribution transformer or fuse blowing.The advantage of this protection switch is that it solves the problem that many kinds of switches in the market do not work dueto high voltage phase failure(drop switch tripping). No matter if the high voltage fas,the brake falls of, the low votage fuse blowsout, and one phase of the three-phase winding of the motor is not energized, resulting in sinale-phase operation. it can reliablyplay a protective role.