SHK系列負(fù)荷鐵殼開(kāi)關(guān)
1.SHK系列熔斷器式開(kāi)關(guān)，適用于交流50~60Hz，額定絕緣電壓至500V，額定工作電壓415V（包括380V）有，約定發(fā)熱電流至400安培的電路中，作為手動(dòng)不頻繁地接通與分?jǐn)嘭?fù)載電路和線路的過(guò)載與短路保護(hù)之用。由于裝有中性接線柱，熔斷器式開(kāi)關(guān)也可作為一般照明等回路的控制開(kāi)關(guān)之用。 高短路電流的配電回路和電動(dòng)機(jī)回路作為電源隔離開(kāi)關(guān)、負(fù)荷開(kāi)關(guān)和應(yīng)急開(kāi)關(guān)、供電路通斷及保護(hù)之用。
2.SHK負(fù)荷開(kāi)關(guān)箱適用于下列工作條件：
1）海拔不高于2000米
2）周圍環(huán)境溫度不高于+40攝氏度不低于-5攝氏度
3）空氣相對(duì)濕度不大于90%（+25℃）
4）垂直安裝于無(wú)強(qiáng)烈振動(dòng)和沖擊的場(chǎng)合
5）在無(wú)爆炸氣體和腐蝕氣體的場(chǎng)合
2.SHK負(fù)荷開(kāi)關(guān)箱分類和型式
1）按約定發(fā)熱電流分有100,200,315,400安培四個(gè)等級(jí)
2）按結(jié)構(gòu)型式分有開(kāi)啟式和封閉式兩種
3）按極數(shù)分有3極帶中性接線柱和3極不帶中性接線柱，4極三種
3.SHK負(fù)荷開(kāi)關(guān)箱結(jié)構(gòu)特征
熔斷器式開(kāi)關(guān)主要由觸頭滅弧系統(tǒng)，熔斷器，操作機(jī)構(gòu)和外殼四個(gè)部分組成。滅弧室由耐弧塑料壓制，機(jī)構(gòu)簡(jiǎn)單，便于拆裝。觸頭系統(tǒng)采用雙斷點(diǎn)直動(dòng)式長(zhǎng)形觸頭型式，動(dòng)觸點(diǎn)是以有填料封閉管式熔斷器為橋臂的雙斷點(diǎn)U型觸頭，長(zhǎng)形觸頭有較高的電動(dòng)穩(wěn)定性，雙斷點(diǎn)有較高的分?jǐn)嗄芰?。有填料封閉管式熔斷器的極限分?jǐn)嗄芰_(dá)50千安，可以滿足一般電網(wǎng)的要求。操作機(jī)構(gòu)采用單桿抽拉式結(jié)構(gòu)和彈簧儲(chǔ)能原理。用同一彈簧執(zhí)行開(kāi)關(guān)接通分?jǐn)嗟臋C(jī)能，保證開(kāi)關(guān)能可靠的接通和分?jǐn)?，并有明顯的通斷標(biāo)志。抽拉式操作手柄，在開(kāi)關(guān)接通或分?jǐn)嘁院螅梢酝迫腴_(kāi)關(guān)外殼內(nèi)，外形美觀，開(kāi)關(guān)蓋殼裝有連鎖裝置，保證在蓋子打開(kāi)后開(kāi)關(guān)不能接通及開(kāi)關(guān)接通后蓋子不能打開(kāi)。
相關(guān)型號(hào)
SHK-100/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-100/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-100/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-100/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-160/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-160/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-160/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-160/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-200/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-200/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-200/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-200/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-250/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-250/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-250/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-250/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-315/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-315/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-315/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-315/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-400/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-400/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-400/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-400/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-630/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-630/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-630/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-630/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-10/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-10/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-10/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-10/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-15/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-15/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-15/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-15/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-16/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-16/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-16/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-16/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-20/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-20/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-20/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-20/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-25/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-25/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-25/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-25/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-30/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-30/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-30/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-30/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-40/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-40/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-40/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-40/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-50/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-50/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-50/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-50/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-60/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-60/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-60/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-60/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-63/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-63/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-63/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-63/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-80/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-80/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-80/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-80/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-125/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-125/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-125/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-125/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-150/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-150/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-150/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-150/4R負(fù)荷鐵殼開(kāi)關(guān)
SHK-350/3負(fù)荷鐵殼開(kāi)關(guān)
SHK-350/3R負(fù)荷鐵殼開(kāi)關(guān)
SHK-350/4負(fù)荷鐵殼開(kāi)關(guān)
SHK-350/4R負(fù)荷鐵殼開(kāi)關(guān)
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