Limit Switch 行程开关
Limit switch is a switch operated by the motion of a machine part or the presence of an object. A limit switch can be used for controlling machinery as part of a control system, as a safety interlock, or as a counter enumerating objects passing a point.
Limit switches are used in a variety of applications and environments because of their ruggedness, ease of installation, and reliability of operation. They can determine the presence, passing, positioning, and end of travel of an object. They were first used to define the limit of travel of an object, hence the name "limit switch".
Standardized limit switches are industrial control components manufactured with a variety of operator types, including lever, roller plunger, and whisker type. Limit switches may be directly mechanically operated by the motion of the operating lever. A reed switch may be used to indicate proximity of a magnet mounted on some moving part. Proximity switches operate by the disturbance of an electromagnetic field, by capacitance, or by sensing a magnetic field.
Rarely, a final operating device such as a lamp or solenoid valve is directly controlled by the contacts of an industrial limit switch, but more typically the limit switch is wired through a control relay, a motor contactor control circuit, or as an input to a programmable logic controller.
CHINT Limit Switch 正泰行程限位开关
Founded in 1984, CHINT is a leading global provider of smart energy solutions. It is actively deploying “4+1” industrial sectors including smart electrics, green energy, industrial control and automation, smart home and incubator, forming an integrated whole industry chain of “power generation...
Omron Limit Switch 欧姆龙行程开关
Omron Corporation (オムロン株式会社, Omuron Kabushiki-gaisha), styled as OMRON, is a Japanese electronics company based in Kyoto, Japan. Omron was established by Kazuma Tateishi (立石一真) in 1933 (as the Tateishi Electric Manufacturing Company) and incorporated in 1948. The company originated in an area of...
CNTD Limit Switch 昌得行程开关
CNTD Electric Technology Co., Ltd., located at Yueqing Economic development zone, Zhejiang, China, has been specializing in industrial automation used switches since 2000, and is now an exemplary enterprise in our industry. As a leading industrial automation switch manufacturer and partner of many...
Delixi Limit Switch 德力西行程开关
The predecessor of Delixi was "Yueqing County Switch Factory", which was founded by Hu Cheng zhong and his brother Hu Chengguo in July 1984. At that time, there were only 3 shareholders, 50,000 yuan of capital and 8 employees, and the product was single thermal relay, and the registered trademark...