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Limit Switch
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In electrical engineering a limit switch is a switch operated by the motion of a machine part or presence of an object. ... A limit switch is an electro-mechanical device that consists of an actuator mechanically linked to a set of contacts.
Grab Differential Limit Switch
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Suni Brand Grab differential Limit Switch is driven by holding and closing winches is used in auxiliary circuits for single lever grab control. It is used for stopping the closing motor after closing or opening, regardless of the height of the grab and starting the holding motor after closing, for transition to the hoisting action as well as for stopping the holding & closing motors at the hoisting & lowest grab position. Construction : The switch contains six cam operated switch elements which are used as auxiliary circuit limit switches (See switching sequence diagram). The dimension drawing shows that the switch has two shafts which must be driven by the holding and closing winches. The contracts of limit switches are 40 Amps rated at 500 V. A. C. Mode of operation : The switches N5, N6 are limit switches for the highest and lowest grab positions. The 'Grab closed' and 'Grab open' limit positions are monitored by the switches N1 & N4, whereas N2 & N3 initiate the switching operations for single lever grab control. Installation : The switch is best arranged to one side of the winch space between the drums where it should be easily accessible. It can be mounted either in a horizontal or a vertical position. However, the former is preferred since the switching equipment and gearing can be reached more easily when the cover has been removed. Auxiliary shafts connected to the winch of the grab hoisting gear are best used for driving the switch. The closing winch is connected to shaft 1 at the differential gear end and the holding which is joined to shaft 2 at the same or opposite end of the switch. Accessories : A special wrench is needed to release the locking nut when adjusting the cam discs. This wrench is included with the switch.
Best Deals from Limit Switches
Limit Switch
1,000 - 5,000 Per Piece
Rotary Limit Switch
2,800 Per Piece
Limit Switch Box
2,300 Per Piece
1 Piece (MOQ)
Limit Switch
500 - 2,000 Per Piece
Mini Limit Switches
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500 Piece(s) (MOQ)
We provide excellent quality Mini Limit Switches that are widely used in electrical devices or circuits to control the supply of current. These Mini Limit Switches are manufactured using high-grade raw materials and appreciated for their flawless performance and compact size. Featuring oil resistant construction, our Mini Limit Switches have impressive dielectric strength, contact resistance and insulation resistance.
flameproof limit switch
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the products to meet more stringent benchmarks for Safety, Reliability & Performance. Explosion protected equipments are meant for installation and use in these hazardous locations to ensure safety of plant, equipment and personnel and to ensure safety and reliability of operation.
flameproof limit switch
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OMRON LIMIT SWITCH
48 Per Piece
100 Piece(s) (MOQ)
Micro limit switch
399 Per Piece
1 Piece (MOQ)
Limit Switches
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Roller Level type, Rotary Geared with Ratio 48 : 1 &60 : 1 No. of contacts up to 4, Rating 10 A. & 40A.Series Limit Switch up to150 Amp.The Limit Switch contact block is of high grademelamine capable of withstanding heavy arcing. Thetips are made of high grade silver cadmium oxidealloy.
Limit Switches
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Siemens push buttons and indicator lights are characterized by a high degree of functionality and their modern, slim design. Another convincing feature: They are easy to assemble. The actuators, indicators, holders as well as switching and lighting components can be made secure and stable in rapid, one-man assembly. These limit switches are actuated by straight edges, cams, stops or plates etc. and give control commands for the further progress of the switching program or of the manufacturing/processing sequence. For the various control applications there are 2 ranges available, namely open type and metal enclosed limit switches with 3 different versions of contact configuration.There is a wide range of actuators suitable for different operations/ actuation conditions, enabling the user to select the most optimum one for the particular application. Specially designed compact housings also allow for optimum installation and convenient cable entry. The design, materials used and manufacturing processes ensure that 3SE3 limit switches guarantee the reliable functioning of control and auxiliary systems. SICONT Limit Switch - 3SE3• The 3SE3 limit switches conform to the IS: 13947-5-13 and IEC: 947-5-1-3 standards: —Electro-mechanical control switches.• The open type limit switches have the degree of protection: IP 20 for terminals• The open type switches are available with 2 or 3 sets of contacts.• The metal-enclosed limit switch consists of the IP 67 housing• In the 3SE3 range, it is possible to interchange the actuators and contact blocks, as required
Weight Limit Switches
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We offer premium quality weight limit switches that are made from premium quality materials and are ideally suited for cranes and other machine applications. The weight limit switches offered by us are equipped with advanced technology and unique design that makes them unique among all the other available in the market. The easy availability and competitive pricing of our switches have placed us among the luminary weight limit switches manufacturers and suppliers based in Mumbai. Widely Used In :- Cranes Following are the Features of Weight Operated Limit Switch Made from premium quality materialsAdvance technologyUnique designEasy availabilityCompetitive pricing Click Here For Specifications
Lever Limit Switch
1,000 - 5,000 Per Piece
Lever Limit Switch
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When the snatch block of the crane reaches its top position the snatch block pushes a plate which is hanging from one end of the lever of the limit switch. Due to the weight placed on the other end of the lever this lever is pushed up. When the lever is pushed up the shaft to which this lever is connected rotates there by rotating the cams which eventually open the contacts and disconnect the motor. The electronic limit switch contacts are automatically reset when the lever returns to zero position due to gravitational force
Limit Switch
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Counter Weight Limit Switch
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We are known to be among the leading Heavy Duty Counter Weight Limit Switches Suppliers in India. The Counter Weight Limit Switch that we offer is used to prevent the over hoist position with weight. It provides counter weight that is lifted with the help of wire rope in order to prevent over hoist motion. Features Aluminium die cast body with IP-55 degree of protection. Applications E.O.T. Cranes Hoist, Lifts, etc.
Anti To Block Limit Switch
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The A2B Limit Switch monitors the load block to its relationship with the head of boom.• Users receive an audible hooter and visual warning on the display when anti two block event happens• Electronic circuitry is potted for full humidity protection• Counter weight with the help of wire rope keeps the switch closed until the hook block strikes it.
Honeywell Limit Switch
350 Per Piece
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