直銷HR 5刀開關(guān)，www.shyokbo.com 一、適用范圍 HR5系列熔斷器式隔離開關(guān)主要用于額定電壓交流400V和660V，約定發(fā)熱電流至630A的具有高短路電流的配電電路和電動機(jī)電路中，作為電源開關(guān)、應(yīng)急開關(guān)，并作為電路保護(hù)之用，但一般不作為直接開閉單臺電動機(jī)之用。 二、型號及含義 0為無熔斷信號裝置型，1為有熔斷信號裝置型 （配用有熔斷指示器的熔斷體）（配用有熔斷撞擊器的熔斷體） 極數(shù)：2極，3極 額定工作電流：100A/200A/400A/630A HR5熔斷式隔離開關(guān) 三、主要技術(shù)參數(shù) 額定絕緣電壓：660V 額定工作電壓：380V/660V倆種 額定工作電流： 380V:100A/ 200A/ 400A/ 630A四種 660V:100A/200A/315A/425A四種 開關(guān)的機(jī)械壽命分別為3000次（100A/200A)和1000次（400A/630A) 開關(guān)的電壽命分別為600次（100A/200A)和200次（400A/630A)接通與分?jǐn)? The direct HR 5 knife switch, www.shyosdy.com A, scope of application HR5 series switch is mainly used for AC rated voltage 400V and 660V, vheating current to 630A with high short circuit current of the power distribution circuit and motor circuits, as the power switch, emergency switch, and a circuit protection purposes, but generally not as a single motor for opening and closing. Two, models and implications 0 without a fuse signal device type, 1 for fuse signal device type (with a fuse fuse indicator) (with a fuse fuse impactor) Pole number: 2 pole, 3 pole Rated working current: 100A/200A/400A/630A HR5 fuse type isolating switch Three, the main technical parameters Rated insulation voltage: 660V Rated voltage: 380V/660V two Rated working current: 380V:100A/ 200A/ 400A/ 630A four 660V:100A/200A/315A/425A four The mechanical life of the switches were respectively 3000 (100A/200A) and 1000 (400A/630A) Electrical life of switch were respectively 600 (100A/200A) and 200 (400A/630A) switching on and off