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德國SCHMERSAL施邁賽 德國SCHMERSAL施邁賽
是專業(yè)做限位開關(guān)的一個品牌， SCHMERSAL限位開關(guān)就是用以限定機械設(shè)備的運動極限位置的電氣開關(guān)SCHMERSAL。限位開關(guān)有接觸式的和非接觸式的。接觸式的比較直觀，機械設(shè)備的運動部件上，安裝上行程開關(guān)，與其相對運動的固定點上安裝極限位置的擋塊，或者是相反安裝位置。當行程開關(guān)的機械觸頭碰上擋塊時，切斷了（或改變了）控制電路，機械就停止運行或改變運行。由于機械的慣性運動，這種行程開關(guān)有一定的“超行程”以保護開關(guān)不受損壞。非接觸式的形式很多，常見的有干簧管、光電式、感應(yīng)式等，這幾種形式在電梯中都能夠見到。當然還有更多的*形式。
SCHMERSAL施邁賽限位開關(guān)是一種常用的小電流主令電器。利用生產(chǎn)機械運動部件的碰撞使其觸頭動作來實現(xiàn)接通或分斷控制電路，達到一定的控制目的。通常，這類開關(guān)被用來限制機械運動的位置或行程，使運動機械按一定位置或行程自動停止、反向運動、變速運動或自動往返運動等。
在電氣控制系統(tǒng)中，限位開關(guān)的作用是實現(xiàn)順序控制、定位控制和位置狀態(tài)的檢測。用于控制機械設(shè)備的行程及限位保護。構(gòu)造：由操作頭、觸點系統(tǒng)和外殼組成。
在實際生產(chǎn)中，將SCHMERSAL限位開關(guān)安裝在預(yù)先安排的位置，當裝于生產(chǎn)機械運動部件上的模塊撞擊行程開關(guān)時，限位開關(guān)的觸點動作，實現(xiàn)電路的切換。因此，行程開關(guān)是一種根據(jù)運動部件的行程位置而切換電路的電器，它的作用原理與按鈕類似。
SCHMERSAL限位開關(guān)廣泛用于各類機床和起重機械，用以控制其行程、進行終端限位保護。在電梯的控制電路中，還利用行程開關(guān)來控制開關(guān)轎門的速度、自動開關(guān)門的限位，轎廂的上、下限位保護。
SCHMERSAL施邁賽限位開關(guān)部分型號展示：
TV7H256-11z, TK4256-20z, TV1H256-20z, TV7H256-20z TK4256-02z,
TV1H256-02z, TV7H256-02z,ZV10H256-11z,TV10H256-11z,TV10H256-20z,
TV10H256-02z,ZS336-11z, ZR336-11z, ZS336-02z, ZR336-02z,
TS336-11z, TR336-11z, TS336-11zu, TR336-11zu, TS336-20z,
TR336-20z, TS336-11zh, TR336-11zh, TS336-02z, TR336-02z,
TS336-02zh, TR336-02zh, Z4VH336-11z, Z4V7H336-11z,Z4V10H336-11z,
Z4VH336-02z, Z4V7H336-02z,Z4V10H336-02z,T4VH336-11z,T4V7H336-11z,
T4V10H336-11z,T4VH336-11zu,T4V7H336-11zu,T4V10H336-11zu,T4VH336-20z,
T4V7H336-20z, T4V10H336-20z,T4VH336-20zh,T4V7H336-20zh,T4V10H336-20zh,
T4VH336-02z, T4V7H336-02z, T4V10H336-02z,T4VH336-02zh,T4V7H336-02zh,
T4V10H336-02zh,TVH336-01/01z,Z1K336-11z, Z3K-336-11z, Z1K336-02z,
Z3K-336-02z, T1K336-11z, T3K-336-11z, T1K336-11zu, T3K-336-11zu,
T1K336-20z, T3K-336-20z, T1K336-20zh, T3K-336-20zh,T1K336-02z,
T3K-336-02z, T1K336-02zh, T3K-336-02zh，ZS236-11Z, ZR236-11Z,
TS236-11Z, TR236-11Z, TS236-20Z, TR236-20Z, TS236-02Z,
TR236-02Z, Z4R236-11Z, ZK236-11Z, T4R236-11Z, TK236-11Z,
T4R236-20Z, TK236-20Z, T4R236-02Z, ZK236-02Z, ZV1H236-11Z,
Z1R236-11Z, TV1H236-11Z, T1R236-11Z, TV1H236-20Z, T1R236-20Z,
TV1H236-02Z, T1R236-02Z, ZV10H236-11Z, Z3K236-11Z, TV10H236-11Z,
T3K236-11Z, TV10H236-20z,T3K236-20z, TV10H236-02Z,T3K236-02Z,
Z4K236-11Z, ZK4236-11Z, T4K236-11z, TK4236-11z, T4K236-20z,
TK4236-20z, T4K236-02z, TK4236-02z ZS335-11z, ZR335-11z,
ZS335-02z, ZR335-02z, TS335-11z, TR335-11z, TS335-11zu,
TR335-11zu, TS335-20z, TR335-20z, TS335-11zh, TR335-11zh,
TS335-02z, TR335-02z, TS335-02zh, TR335-02zh, Z4VH335-11z,
Z4V7H335-11z, Z4V10H335-11z,Z4VH335-02z, Z4V7H335-02z,Z4V10H335-02z,
T4VH335-11z, T4V7H335-11z, T4V10H335-11z,T4VH335-11zu,T4V7H335-11zu,
T4V10H335-11zu,T4VH335-20z,T4V7H335-20z, T4V10H335-20z,T4VH335-20zh,
T4V7H335-20zh,T4V10H335-20zh,T4VH335-02z,T4V7H335-02z,T4V10H335-02z,
T4VH335-02zh, T4V7H335-02zh,T4V10H335-02zh,TVH335-01/01z,Z1K335-11z,
Z3K-335-11z, Z1K335-02z,Z3K-335-02z,T1K335-11z,T3K-335-11z,
T1K335-11zu, T3K-335-11zu,T1K335-20z,T3K-335-20z,T1K335-20zh,
T1K335-02z,T3K-335-02z,T1K335-02zh,T3K-335-02zhZS332-11y,
ZR332-11y,Z4VH332-11y,Z4V10H332-11y,Z4V7H332-11yZS355-11z,
ZR355-11z,ZS335-02z,ZR335-02z,TS355-11z,TR355-11z,TS355-11zu,
TR355-11zu,TS355-20z,TR355-20z,TS355-20zh,T4V7H335-02zh,
T4V10H335-02zh,TVH335-01/01z,Z1K355-02z,Z3K355-02z,T1K355-11z,
T3K355-11z,TV10H236-11Z,T3K236-11Z,T1K355-11zu,T3K355-11zu,
T1K355-20z,T3K355-20z,T1K355-20zh,T3K355-20zh,T1K355-02z,
T3K355-02zT1K355-02zh,T3K355-02zh,Z4VH355-11z,Z4V10H355-11z,
Z4V7H355-11z,T4V7H355-02z,T4VH355-02zh,T4V10H355-02zh,
T4V7H355-02zh,TVH355-01-01zZ4VH355-02z,Z4V10H355-02z,
Z4V7H355-02z,T4VH355-11z,T4V10H355-11z,T4V7H355-11z,TR355-02zh,
Z1K355-11z,T4V7H335-20zh,T4V10H335-20zh,T4VH335-02z,T4V7H335-02z,
T4V10H335-02z,T4VH335-02zh,T4VH355-11zu,T4V10H355-11zu,
T4V7H355-11zu,T4VH355-20z,T4V10H355-20z,TR355-20zh,
TS355-02z,TR355-02z,TS355-02zh,T3K-335-20zh,
