Waterproof and dustproofdesign (IP67)
Compact size andcompact structure
Long lifespan andhigh reliability
100% Manufactory
Set up since 2012, our company own the factory, and experienced.
PROFESSIONAL MANUFACTURER OF MICRO SWITCHES
Waterproof and dustproofdesign (IP67)
Compact size andcompact structure
Long lifespan andhigh reliability
Product Quality
Uiled have obtained relevant CCC, CQC, UL, VDE, CE, ENEC enterprise and relevant product certifications.
Sales Market
We have gained a global sales network reaching many countries over North America, South America, Europe, Africa and South East Asia.
After-Sales Service
A complete service network has been established to respond to user requests within 24 hours.
PRODUCTS
The core products include micro switches and travel limit Switch, push button switch, foot switch, toggle switch, AC power socket.
The core products include micro switches and travel limit Switch, push button switch, foot switch, toggle switch, AC power socket.
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ABOUT LEMA
Lema is committed to R&D, production and sales of industrial control electrical switches. The company's core products include micro switches and travel limit Switches, push button switches, foot switches, toggle switches, AC power socket.
After nearly 30 years of steady development, Lema has become a large-scale professional manufacturer of micro switches in China. The company currently covers an area of more than 11,000 square meters.
2000Years
Established in
40+
Exporting countries and regions
10000m2
Factory floor area
60+
Authentication certificate
APPLICATION
Committed to research and development, production, sales of industrial electrical switches and connectors
INDUSTRIAL
AUTOMATION
Industrial automation empowers smart manufacturing with reduced manual labor, higher precision, and greater efficiency.
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IEC Power Inlet Creepage and Clearance: Assembly Review
IEC power inlet creepage and clearance must be assessed in the finished assembly as well as within the component. Clearance is the shortest relevant path through air; creepage follows the relevant insulating surface. Panel screws, wire routing and nearby conductive parts can change the assembly paths. There is no universal spacing that can be selected from mains voltage alone.The IPZ Series AC Power Socket is the LEMA product reference illustrated here. Its photograph identifies the external product, not an unlisted rating, accessory compatibility or test result. Obtain the current specification for the full order code before approving an assembly.IPZ screw-mount and snap-in housings beside a detached measuring tool. Product-reference illustration, not a test result or installation drawing. Begin with the electrical design of the completed equipment. Identify the conductive parts at each side of the relevant boundary and the function that the insulation provides. The inlet terminals, enclosure, mounting hardware, adjacent components and connected wiring may all be relevant. Measuring the most visible gap without defining the boundary can produce a precise number for the wrong question. Keep the component boundary distinct from the equipment boundary. An inlet can have documented construction and approval conditions while the finished installation still introduces another path through a nearby screw, bracket or wire. Obtain the current inlet drawing and the conditions applicable to the exact variant, then review how it is installed in the actual enclosure. Distinguish a path through air from one along a surface Clearance concerns the relevant shortest path through air between conductive parts. Creepage concerns the relevant shortest path along an insulating surface. These measurements can follow different routes around the same pair of parts. A large visible space...
↗Switch Incoming Inspection: Lot Sampling and Acceptance
Electromechanical switch incoming inspection should connect each received lot to the approved part definition and a written acceptance procedure. Define the lot, select samples by the agreed plan, check identity and relevant performance, and record the disposition. A supplier certificate alone is not an executed inspection, while an accepted sample does not prove every unit is defect-free.The KW7 Series Micro Switch is the LEMA product reference illustrated here. Its photograph identifies the external product, not an unlisted rating, accessory compatibility or test result. Obtain the current specification for the full order code before approving an assembly.KW7 switch beside an unconnected caliper and blank inspection sheet. Product-reference illustration, not a test result or installation drawing. A lot needs a traceable boundary. Record the complete part code, supplier, purchase order, received quantity and available manufacturing or packaging identifiers. Do not combine different contact variants, terminal options or date-code groups merely because the cartons share a family name. If a shipment contains several identified lots, the receiving procedure should explain how each is represented in the inspection decision. Keep the relationship between the physical material and the receiving record intact when cartons are opened. Repacking, kitting and production returns can remove that relationship unless the process preserves it. A receiving label should identify the material actually covered by the record. It should not imply that an uninspected additional shipment shares the same result. Establish the approved part definition Inspect against the agreed specification and drawing revision, rather than a photograph copied from an old quotation. The full code can identify a contact arrangement, terminal style, actuator or operating characteristic that is not obvious from the exterior. Include approved substitutions and their conditions in...
↗Micro Switch Minimum Load: Validate Low-Level Signals
Micro switch minimum load describes the lower switching conditions supported by a particular contact system under stated test conditions. A maximum current rating does not establish reliable operation at a tiny signal level. Validate the actual input circuit, contact variant, environment and required reliability rather than assuming that every power-rated switch is suitable for a dry circuit.The KW7 Series Micro Switch is the LEMA product reference illustrated here. Its photograph identifies the external product, not an unlisted rating, accessory compatibility or test result. Obtain the current specification for the full order code before approving an assembly.KW7 switch beside loose unconnected receptacles for fixture planning. Product-reference illustration, not a test result or installation drawing. Why an Upper Rating Does Not Establish a Minimum Load An upper electrical rating describes an allowable switching duty under stated conditions. It does not automatically identify the lowest voltage or current at which the contact will function reliably. A contact arrangement that performs satisfactorily with an energetic load may depend partly on electrical effects that are absent in an electronic sensing circuit. Reading the upper rating backward creates an unsupported assumption: that anything electrically smaller must be easier. At low signal levels, contact resistance can become unstable because the conducting interface is influenced by films, surface condition, contact force, and microscopic contact spots. The receiving input may interpret that instability as an open circuit, delayed transition, or intermittent state. Meanwhile, the switch may still operate mechanically and sound normal. Mechanical action alone does not demonstrate electrical suitability for the application. When documentation gives a minimum applicable load or a low-level designation, examine its scope. Ask which contact construction, environment, operating history, and acceptance method support the...
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