TD422-01Y-2512-10限位开关（以下简称限位开关），本产品主要用于交流50HZ、60HZ，额定工作电压至380V，直流额定工作电压至220V的控制电路中，用以限制起重机旋转运动机构的工作转角和进行顺序控制。

　　什么是限位开关?限位开关也叫做行程开关这种器件有什么作用?相信对限位开关不熟悉的人都有这样的疑问。虽然这种器件在我们的日常生活中真的非常常见，但是人们对它的构成和工作原理并不是很了解。

　　TD422-01Y-2512-10限位开关又称行程开关，用于控制机械设备的行程及限位保护。在实际生产中，将行程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，行程限位开关的触点动作，实现电路的切换。因此，限位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，还利用行程限位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。

　　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。

　　滚轮式行程开关

　　当运动机械的挡铁(撞块)压到行程开关的滚轮上时，传动杠连同转轴一同转动，使凸轮推动撞块，当撞块碰压到一定位置时，推动微动开关快速动作。当滚轮上的挡铁移开后，复位弹簧就使行程开关复位。这种是单轮自动恢复式行程开关。而双轮旋转式行程开关不能自动复原，它是依靠运动机械反向移动 时，挡铁碰撞另一滚轮将其复原。

　　滚轮式行程开关组成

　　1:滚轮2:上转臂3&5&11:弹簧4:套架

　　6:滑轮7:压板8&9:触点10:横板

　　滚轮式行程开关又分为单滚轮自动复位和双滚轮(羊角式)非自动复位式，双滚轮行移开关具有两个稳态位置，有“记忆”作用，在某些情况下可以简化线路。

　　结构

　　限位开关，指为保护内置微动开关免受外力、水、油、气体和尘埃等的损害，而组装在外壳内的开关，尤其适用于对机械强度和环境适应性有特殊要求的地方。形状大致分为横向型、竖向型和复合型。

　　TD422-01Y-2512-10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。这种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，安装上限位开关，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。当限位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。

　　TD422-01Y-2512-10限位开关在实际生产中，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。

　　T2C 422-01Y

　　T2C 422-10Y

　　T2C 422-10Y-T

　　TD 422-01Y-1090/2512

　　TD 422-01Y-1801/2512-1

　　TD 422-01Y-2512

　　TD 422-01Y-2512-10

　　TD 422-10Y-1801/2512-1

　　TD 422-10Y-2512

　　TD 422-10Y-2512-10

　　TJ 422-01Y

　　TK 422-01Y

　　TK 422-01Y-Q

　　TK 422-01Y-T

　　TK 422-01Y-U180

　　TK 422-10Y

　　TK 422-10Y-T

　　TL 422-01Y-1090/2512-6

　　TL 422-01Y-2512-16

　　TL 422-01Y-2512-6

　　TL 422-01Y-T-2512-6

　　TL 422-01Y-U180-2512-6

　　TL 422-10Y-T-2512-6

　　TL 422-10Y-U180-2512-6

　　TR 422-01Y

　　TR 422-01Y-PG

　　TR 422-01Y-T

　　TR 422-01Y-T-PG

　　TR 422-10Y

　　TR 422-10Y-PG

　　TR 422-10Y-T

　　TR 422-10Y-T-PG

　　TS 422-01Y

　　TS 422-01Y-T-M20

　　TS 422-10Y

　　TS 422-10Y-T

　　441系列

　　M. 441-11Y-1224

　　M. 441-11Y-M20-243

　　M. 441-11Y-T-1276-1

　　M. 441-11Y-T-1276-2            

　　M. 441-11Y-T-1276-2/1801                               

　　M. 441-11Y-T-1801

　　M2S 441-11Y                             

　　M2S 441-11Y-T

　　MD 441-11Y-2512

　　MD 441-11Y-2512-10

　　MD 441-11Y-T-2512

　　MJ 441-11Y

　　MJ 441-11Y-T

　　MK 441-11Y

　　MK 441-11Y-T

　　ML 441-11Y-2512-16

　　ML 441-11Y-2512-6

　　ML 441-11Y-T-1276-2/1801/2512-7

　　ML 441-11Y-T-1801/2512-7

　　ML 441-11Y-T-2512-6

　　ML 441-11Y-U180-2512-6

　　MR 441-11Y

　　MR 441-11Y-T

　　MR 441-11Y-T-1276-2

　　MS 441-11Y-M20

　　MS 441-11Y-T

　　MS 441-11Y-M20-1276-1

　　T. 441-11Y-1224

　　T. 441-11Y-1801      

　　T. 441-11Y-966

　　T. 441-11Y-M20-243

　　T. 441-11Y-T-1276-2/1801

　　T. 441-11Y-T-1649

　　T. 441-11Y-UE-T-M20-316 

　　T. 441-11Y-T-1801

　　T. 441-11Y-UE-1224

　　T. 441-11Y-UE-243

　　T. 441-11Y-UE-243/8022-2

　　T. 441-11Y-UE-966

　　T. 441-11Y-UE-T-M20-316

　　T2C 441-11Y-M20

　　T2S 441-11Y-T

　　TD 441-11Y-2512

　　TD 441-11Y-2512-10

　　TD 441-11Y-T-2512

　　What is the limit switch? The limit switch is also called the travel switch. What does this device do? People who are not familiar with the limit switch have such questions. Although this device is very common in our daily life, people don't know much about its composition and working principle.

　　The td422-01y-2512-10 limit switch is also known as the travel switch to control the travel and limit protection of mechanical equipment. In actual production, will travel limit switch installed in a pre-arranged position, when installed on the production of mechanical parts hit the switch module, travel limit switch contact action, implementation of circuit switching. Therefore, the limit switch is an electrical appliance that switches the circuit according to the travel position of the moving parts, and its function is similar to that of the button. The limit switch is widely used in all kinds of machine tools and lifting machinery, to control its travel and to carry out terminal limit protection. In the control circuit of the elevator, it also USES the travel limit switch to control the speed of the switch door, the limit of the automatic opening and closing, the upper and lower limit protection of the cage.

　　The limit switch is a commonly used small current main generator. Using the collision of the moving parts of the production machinery to make the contact or breaking control circuit to achieve certain control purposes. Normally, such switches are used to limit the position or travel of the mechanical movement, so that the motion machine can stop automatically, reverse motion, variable speed or automatic round-trip motion in a certain position or stroke.

　　In electric control system, the function of limit switch is to realize sequence control, positioning control and position state detection. Used to control the travel and limit protection of mechanical equipment. Construction: consists of an operating head, a contact system and a shell.

　　Roller type travel switch.

　　When motion mechanical block iron (collision block) pressure on roller of stroke switches, transmission poles along with axis of rotation, the CAM driven collision block, when collision block touch pressure to a certain position, promote micro switch action quickly. When the bar on the roller is removed, the reset spring will reset the stroke switch. This is a single-wheel automatic recovery stroke switch. And the double-wheel rotary travel switch cannot be automatically restored, it is the reverse movement of the moving machinery, the block iron collision with the other wheel to recover it.

　　Roller type travel switch composition.

　　1: roller 2: upper turning arm 3&5&11: spring 4: frame.

　　6: pulley 7: pressure plate 8&9: contact 10: horizontal plate.

　　Roller stroke switch is divided into single and double roller roller automatic reset (horn), the automatic reset type, double roller line switch has two steady state position, have "memory" effect, in some cases can simplify the circuit.

　　structure

　　Limit switch, means to protect the built-in micro switch from external forces, such as water, oil, gas and dust damage, and assembled in the switch inside the shell, especially suitable for mechanical strength and environmental adaptability have special requirements. The shape is roughly divided into horizontal, vertical and composite.

　　The td422-01y-2512-10 limit switch is the electrical switch used to limit the movement limit position of the mechanical equipment. This switch has contact type and non - contact type. The contact type is more intuitive, the moving parts of mechanical equipment are installed, the upper limit switch is installed, the blocking block of the limit position is installed on the fixed point of relative motion, or the installation position is opposite. When the mechanical contact of the limit switch meets the block, the control circuit is cut off (or changed), and the machine stops running or changes the operation. Due to the mechanical inertia movement, this travel switch has a certain "overstroke" to protect the switch from damage.

　　Hemp city SCHMERSAL industrial automation co., LTD. Is the manufacturer of the SCHMERSAL industrial switch in Germany.

　　Schmersey travel switch.

　　T2C 422-01 y

　　T2C 422-10 y

　　T2C 422-10 - T y

　　TD 422-01 y - 1090/2512

　　TD 422-01 y - 2512-10

　　TD 422-10 y - 2512

　　TD 422-10 y - 2512-10

　　TJ 422-01 y

　　TK 422-01 y

　　TK 422-01 - y Q

　　TK 422-01 - T y

　　TK 422-01 - U180 y

　　TK 422-10 y

　　TK 422-10 - T y

　　TL 422-01 y - 2512-16

　　TL 422-01 y - 2512-6

　　TL 422-01 - y T - 2512-6

　　TL 422-01 - U180 y - 2512-6

　　TL 422-10 y - T - 2512-6

　　TL 422-10 - U180 y - 2512-6