厂家直销HR3刀开关，价格优惠www.wz3838.com。15151521877

一、适用范围

         HR3熔断器式刀开关用于交流50Hz，额定工作电压380V，额定电流100A-1000A的配电系统中作为短路保护和电缆、导线的过载保护之用。在正常情况下，

可供不频繁的手动接通和分断正常负载电流与过载电流，在短路情况下，由熔体熔断来切断电流。

二、型号及含义

1表示正面侧方杠杆机构式，前检修；2表示正面中央杠杆传动机构式，后检修；3表示侧面操作手柄式，前检修；4表示无面板正面侧方杠杆传动机构式，前检修；

极数：3极

额定电流（A)

HR熔断式刀开关

三、主要技术参数

型号                额定工作电压（ue）V                  额定绝缘电压(ui)V    额定工作电流 le(A)    约定发热电流（ith）A            配用熔断体

HR3-100                                                                                                                   100                                       100                                      RTO-100

HR3-200                                                                                                                    200                                      200                                      RTO-200

HR3-400                        380                                                 660                             400                                       400                                     RTO-400

HR3-600                                                                                                                    600                                        600                                    RTO-600

HR3-1000                                                                                                                 1000                                      1000                                  RTO-1000