聯系人；羅林烽
電話；15080036302
QQ；1741511549
限位開關就是用以限定機械設備的運動極限位置的電氣開關。限位開關有接觸式的和非接觸式的。接觸式的比較直觀，機械設備的運動部件上，安裝上行程開關，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，這種行程開關有一定的“超行程”以保護開關不受損壞。非接觸式的形式很多，常見的有干簧管、光電式、感應式等，這幾種形式在電梯中都能夠見到。當然還有更多的先進形式。
限位開關是一種常用的小電流主令電器。利用生產機械運動部件的碰撞使其觸頭動作來實現接通或分斷控制電路，達到一定的控制目的。通常，這類開關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。
在電氣控制系統中，限位開關的作用是實現順序控制、定位控制和位置狀態的檢測。用于控制機械設備的行程及限位保護。構造：由操作頭、觸點系統和外殼組成。
在實際生產中，將限位開關安裝在預先安排的位置，當裝于生產機械運動部件上的模塊撞擊行程開關時，限位開關的觸點動作，實現電路的切換。因此，行程開關是一種根據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。
限位開關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，還利用行程開關來控制開關轎門的速度、自動開關門的限位，轎廂的上、下限位保護
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CUTLER HAMMER E51CNC1 NSFP E51CNC1
CUTLER HAMMER E51-CLT26PU USPP E51CLT26PU
CUTLER HAMMER E51-CLP3 NSFP E51CLP3
CUTLER HAMMER E51-CLP3 LIMIT SWITCH E51CLP3 PHOTOELECTRIC SENSOR EATON
Cutler Hammer E51CLP1
CUTLER HAMMER E51CLP1 PHOTOELECTRIC SENSOR
CUTLER HAMMER E51-CLP1 NSFP E51CLP1
CUTLER HAMMER E51CLF3 PHOTOELECTRIC SENSOR DARK
CUTLER HAMMER E51CLF3 PHOTOELECTRIC SENSOR DARK
CUTLER HAMMER E51-CLF3 NSFP E51CLF3
CUTLER HAMMER E51CLF1 NSFP E51CLF1
CUTLER HAMMER E51BLT5 PROXIMITY SWITCH SENSOR LIMIT
CUTLER HAMMER E51BLT1 PROXIMITY SENSOR INDUCTIVE NO OR NC E51 E51L
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CUTLER HAMMER E51-ALT2 NSPP E51ALT2
Cutler Hammer E51ALT1
CUTLER HAMMER E51ALS6 NSFP E51ALS6
CUTLER HAMMER E51ALS26P NSFP E51ALS26P
Cutler Hammer E51ALP1
CUTLER HAMMER E51ALP1 PHOTOELECTRIC SENSOR NIB
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CUTLER HAMMER E50TD1 LIMIT SWITCH
Cutler Hammer E50SN E50DN1 Limit Switch
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CUTLER HAMMER E50-L NSFP E50L
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Cutler Hammer E50
CUTLER HAMMER E50-SAW1 NSFP E50SAW1
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Cutler Hammer E50SA E50DR1 E50RA Limit Switch
Cutler Hammer E50NN1 Limit Switch
Cutler Hammer E50NN1 Limit Switch
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Cutler Hammer E50GNG1 Limit Switch
Cutler Hammer E50DT3 Pack of 6 Limit Switch Operating Head
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Cutler Hammer E50DS1 Pack of 6 Limit Switch Head Ser A1 - No Box
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Cutler Hammer E50BT3 Limit Switch With Roller
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CUTLER HAMMER E50-BR1 NSPP E50BR1
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CUTLER HAMMER E50BR1 LIMIT SWITCH SIDE ROTARY NIB
CUTLER HAMMER E50BNS3 USPP E50BNS3
CUTLER HAMMER E50-BM1 USPP E50BM1
CUTLER HAMMER E50-BM1 USPP E50BM1
CUTLER HAMMER E50-BM1 NSFP E50BM1
CUTLER HAMMER E50BLS1 LIMIT SWITCH ConTROL ConTROLLER EATON
CUTLER HAMMER E50BLR1 NSPP E50BLR1
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CUTLER HAMMER E50AW1 NSFP E50AW1
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Cutler Hammer E50AT5 Limit Switch
CUTLER HAMMER E50-AT36PC-W NSPP E50AT36PCW
CUTLER HAMMER E50-AT3 USPP E50AT3
Cutler Hammer E50AT3 Limit Switch Series A2 600V Eaton E50RA20 A1
CUTLER HAMMER E50AS5-W NSFP E50AS5W
CUTLER HAMMER E50AS36P USPP E50AS36P
CUTLER HAMMER E50AS3 NSFP E50AS3
CUTLER HAMMER E50-AS1 NSFP E50AS1
CUTLER HAMMER E50AR1S20 NSPP E50AR1S20
CUTLER HAMMER E50-AR1S12 NSFP E50AR1S12
CUTLER HAMMER E50-AR1P5-W NSFP E50AR1P5W
CUTLER HAMMER E50-AR1P4 NSFP E50AR1P4
CUTLER HAMMER E50AR16P NSPP E50AR16P
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CUTLER HAMMER E50AR16P NSFP E50AR16P
CUTLER HAMMER E50-AR1 USPP E50AR1
CUTLER HAMMER E50AR1 IN A BOX
Cutler Hammer E50ANT3 Limit Switch With Roller
CUTLER HAMMER E50ANR16P NSFP E50ANR16P
CUTLER HAMMER E50ANR1 NSPP E50ANR1
CUTLER HAMMER E50ANR1 NSFP E50ANR1
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CUTLER HAMMER E50ALS3 NSFP E50ALS3
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CUTLER HAMMER E40IDEMO NSPP E40IDEMO
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CUTLER HAMMER E34PDB1F5 POTENTIOMETER NIB
CUTLER HAMMER E34PDB1F10 NSFP E34PDB1F10
CUTLER HAMMER E34N53 NSFP E34N53
CUTLER HAMMER E34-N2 NSFP E34N2
CUTLER HAMMER E34GDB97LRD2A-?1X NSPP E34GDB97LRD2A1
CUTLER HAMMER E34GDB97LRD2A-?1X NSFP E34GDB97LRD2A1
CUTLER HAMMER E34GDB97LRD2A-?1X NSFP E34GDB97LRD2A1
CUTLER HAMMER E34GDB97LAD2-A?1X NSFP E34GDB97LAD2A1
CUTLER HAMMER E34GDB97LAD2-A?1X NSFP E34GDB97LAD2A1
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CUTLER HAMMER E30-KP12 NSFP E30KP12
CUTLER HAMMER E30-KP11 NSPP E30KP11
CUTLER HAMMER E30-KP11 NSFP E30KP11
CUTLER HAMMER E30KP10 NSFP E30KP10
Cutler Hammer E30JN Pushbutton Operator E30-JN
CUTLER HAMMER E30-JN NSFP E30JN
CUTLER HAMMER E30JK NSFP E30JK
CUTLER HAMMER E30JF USPP E30JF
CUTLER HAMMER E30-JA USPP E30JA
