E48M3KL3F110
联系人;罗林烽
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限位开关就是用以限定机械设备的运动极限位置的电气开关。限位开关有接触式的和非接触式的。接触式的比较直观,机械设备的运动部件上,安装上行程开关,与其相对运动的固定点上安装极限位置的挡块,或者是相反安装位置。当行程开关的机械触头碰上挡块时,切断了(或改变了)控制电路,机械就停止运行或改变运行。由于机械的惯性运动,这种行程开关有一定的“超行程”以保护开关不受损坏。非接触式的形式很多,常见的有干簧管、光电式、感应式等,这几种形式在电梯中都能够见到。当然还有更多的先进形式。
限位开关是一种常用的小电流主令电器。利用生产机械运动部件的碰撞使其触头动作来实现接通或分断控制电路,达到一定的控制目的。通常,这类开关被用来限制机械运动的位置或行程,使运动机械按一定位置或行程自动停止、反向运动、变速运动或自动往返运动等。
在电气控制系统中,限位开关的作用是实现顺序控制、定位控制和位置状态的检测。用于控制机械设备的行程及限位保护。构造:由操作头、触点系统和外壳组成。
在实际生产中,将限位开关安装在预先安排的位置,当装于生产机械运动部件上的模块撞击行程开关时,限位开关的触点动作,实现电路的切换。因此,行程开关是一种根据运动部件的行程位置而切换电路的电器,它的作用原理与按钮类似。
限位开关广泛用于各类机床和起重机械,用以控制其行程、进行终端限位保护。在电梯的控制电路中,还利用行程开关来控制开关轿门的速度、自动开关门的限位,轿厢的上、下限位保护
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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
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Cutler Hammer E51ALP1
CUTLER HAMMER E51ALP1 PHOTOELECTRIC SENSOR NIB
CUTLER HAMMER E51ALP1 NSFP E51ALP1
CUTLER HAMMER E50TD1 NSFP E50TD1
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CUTLER HAMMER E50TD1 LIMIT SWITCH
Cutler Hammer E50SN E50DN1 Limit Switch
CUTLER HAMMER E50-SGN NSFP E50SGN
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Cutler Hammer E50
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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 - No Box
Cutler Hammer E50GNG1 Limit Switch
Cutler Hammer E50DT3 Pack of 6 Limit Switch Operating Head
Cutler Hammer E50DS3 Pack of 6 Limit Switch Operating Head
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 E50BR1 LIMIT SWITCH SIDE ROTARY NIB
CUTLER HAMMER E50BNS3 USPP E50BNS3
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CUTLER HAMMER E50AW1 NSFP E50AW1
CUTLER HAMMER E50AT5-W NSFP E50AT5W
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
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CUTLER HAMMER E50AR1 IN A BOX
Cutler Hammer E50ANT3 Limit Switch With Roller
CUTLER HAMMER E50ANR16P NSFP E50ANR16P
CUTLER HAMMER E50ANR1 NSPP E50ANR1
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CUTLER HAMMER E50-AM1 NSFP E50AM1
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CUTLER HAMMER E34TB120H9X NSFP E34TB120H9X
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CUTLER HAMMER E34-N2 NSFP E34N2
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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
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