适用范围 ZX2系列板型电阻器适用于交流50HZ电压至660V或直流电压至440V的电路中，主要作电动机的起动、制动、及调速之用。电阻器为开启式。海拔高度不超过2500米；周围介质温度不超过+40℃及不低于-30℃；当+20℃至-5℃时空气相对湿度不大于85%；周围介质中无足以腐蚀金属和破坏绝缘及有爆炸危险的气体及导电尘埃；必须有防雨雪设备并不会充满水蒸汽的地区；在无剧烈震动或颠跛的地区。型号含义主要技术参数 型号+20℃时电阻元件的电阻（Ω）负载电流（A）电阻元件型号每箱所装电阻元件的数量备注ZX2-1/0.20.2043ZB1-0.210ZX2-1/0.250.2538ZB1-0.2510ZX2-1/0.330.3332ZB1-0.3310ZX2-1/0.40.4029ZB1-0.410ZX2-1/0.50.5026ZB1-0.510ZX2-1/0.660.6623ZB1-0.6610ZX2-2/0.70.7022.3ZB2-0.710ZX2-2/0.90.9019.9ZB2-0.910ZX2-2/1.11.1017.8ZB2-1.110ZX2-2/1.451.4515.4ZB2-1.4510注：ZB2型电阻元件接受单片订货型号总电阻(Ω)负载电流(A)电阻元件型号每箱所装电阻元件的数量备注ZX2-2/1.9519.513.8ZB2-1.9510 ZX2-2/2.82811.2ZB2-2.810 ZX2-2/3.53510.1ZB2-3.510 ZX2-2/4.4448.9ZB2-4.410 ZX2-2/5.8587.7ZB2-5.810 ZX2-2/8806.6ZB2-810 ZX2-2/121205.4ZB2-1210 ZX2-2/181804.4ZB2-1810 ZX2-2/21.62164.0ZB2-21.610 ZX2-2/27.62763.5ZB2-27.610 ZX2-2/373703.1ZB2-3710 ZX2-2/484802.7ZB2-4810 ZX2-2/686802.3ZB2-6810 ZX2-2/969601.9ZB2-9610 ZX2-2/14014001.6ZB2-14010 ZX2-2/18818801.4ZB2-18810 ZX2-2/26026001.2ZB2-26010 结构特征ZX2型电阻器电阻元件由康铜线绕于装有绝缘瓷衬地板型支架之上，其间以垫管隔开保证元件有足够的散热面积，同时引线的安装系由绝缘的安装板通过引线螺栓引出。外形及安装尺寸ZX2型户内电阻器外形及安装尺寸    ZX2型户外电阻器外形及安装尺寸