用途 Applications

本系列熔断器支持件适用于交流50Hz、额定绝缘电压至500V、约定发热电流至125A，主要用在电气线路中作为尺码至22×58的各种使用类别（gG、aM、aR等）的熔断体的支持件。本系列熔断器支持件具有耐受约定发热电流及预期短路冲击电流至100KA动热稳定的能力。其中可带熔断指示灯，灯亮指示熔断体已熔断。本系列熔断器支持件符合国家标准GB13539.1、GB13539.2和国际电工委标准IEC60269-1、IEC60269-2、IEC60269-2-1等规定。

These fuse holders are supporters for fuses with size up to 22× 58mm.They are capableof working under heat caused by rated current and expected short impacting current up to100KA. It can also function as a fuse disconnecting swith by multi–phase combinationThere are two in/out lines at the RT18N fuse base,providing a power cut function.Withanindicator,with an indicator which goes on when the fuse links breaks.Rated insulate voltage up to 500V;Working frequency 50Hz AC; Conventional free airthermal current up to 125A; Compliant with GB13539.1,GB13539.2and IEC60269–1,IEC60269–2,IEC60269-2-1.

结构特点 Design Features

本系列熔断器支持件由塑料压制的外壳装上触头和载熔件后，经铆接或焊接而成，均可组成多相结构。RT19为敞开式。其他型号都是半封闭式结构。RT18型支持件均为TH35mm的导轨式安装，RT14-20型支持件可选螺钉安装或导轨安装。

After the plastic-injected case is equipped with contacts and fuse links,the bases areformed by welding or riveting both capable of being multi–phase structured.RT19 are open–structure,and others are semi–concealed structure.RT18 bases are all DIN rail installed.RT14-20 fuse base supports for the screw installation and the installation guide.

基本数据 Basic Data

产品型号、额定绝缘电压、约定发热电流、配置圆筒帽形熔断体尺码、外形尺寸见图8.1~8.7及表8（n相组合的宽度Bn=nB）。

The models,rated insulate voltage,rated current,and dimensions are shown in Figures8.1~8.7 and Table 8(Width of N–phase combination is Bn–nB).