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Product Introduction ：

Travel limit switch, a position switch (also known as limit switch), is a commonly used small current main electrical appliances. Using the collision of the moving parts of the production machinery to make the contact action to realize the switch on or break the control circuit, to achieve a certain control purpose. Usually, this kind of switch is used to limit the position or stroke of the mechanical movement, so that the moving machinery according to a certain position or stroke automatically stop, reverse motion, variable speed motion or automatic round-trip motion.

Operating principle：

Roller type travel switch. When the collision block on the controlled machinery hits the collision rod with a roller, the collision rod turns to the right, driving the CAM rotation, top and down the push rod, so that the contact in the micro switch acts quickly. When the moving machinery returns, under the action of the reset spring, each part of the action parts reset.

installation precautions:

1. The installation position should be accurate and the installation should be firm; The direction of the roller can not be installed in the opposite direction, and the position of the baffle and its collision should meet the requirements of the control line, and ensure that it can collision with the baffle reliably.

2. In use, regular inspection and maintenance should be performed to remove oil scale and dust, clean the contact, and check whether its action is flexible and reliable, and timely troubleshooting. To prevent equipment and personal safety accidents caused by misoperation caused by poor contact of travel switch contacts or loose wiring.

3, see what occasion you use, if the use of the environment is bad but also pay attention to the choice of IP level is relatively high, the trip switch can be subdivided into trip switch, micro switch. Like the electric power industry to use a magnetic blow off arc stroke switch, so that it can withstａnd a relatively large DC current.

4. If it is used to limit the switch, the normally closed contact and the control line in series, if it is used to connect other circuits, then the switch normally open contact and the corresponding control line line in series. In fact, the trip switch is the ordinary button switch, and the usage is the same.

5. The live wire of 20V power supply is connected to the common point of the travel switch, which is connected to the normally open point or the normally closed point depending on your use, and then connected to the A1 point of the contactor; A2 points to the null line. Install the switch in the position where the limit is needed, adjust the contact distance, and then string the normally closed contacts of the switch in the control loop, that is, the installation is completed.

Technical parameters:

Product Detail: