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+
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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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Power Inlet Thermal Cycling: Define the Assembly Test Before Requesting a Rating
Power inlet thermal cycling evaluates an identified inlet assembly through repeated temperature changes under a defined test plan. It is different from checking a steady temperature rating, measuring temperature rise under load or counting plug insertions. Before requesting a thermal-cycle result, define the exact inlet, panel, mating connector, wiring, temperature conditions and required performance. A component catalogue range does not establish that an assembled product has passed your cycle profile. This guide helps equipment builders prepare an evidence request for a real power inlet without inventing cycle counts, temperature limits or an approval that the supplier has not declared. Decide what the test is intended to answer Begin with the design question. You may want to understand whether repeated storage-to-operation transitions affect fit, electrical connection or an installation detail. Alternatively, you may be investigating a field symptom that appears only after equipment warms or cools. Those objectives call for different observations and may involve different samples. Write the question before selecting a chamber profile or requesting a generic thermal test certificate. NASA's thermal cycling knowledge-base topic provides context for temperature-cycle testing as part of integration and verification. Its spacecraft context does not establish an industrial inlet requirement. Use it to understand the purpose and organization of a test, then derive your actual conditions from the equipment requirements and applicable assessment. A more extreme profile is not automatically more representative or more useful for your decision. Keep four different evidence types separate A declared ambient-temperature range describes a component condition within the supplier's stated scope. A loaded temperature-rise assessment concerns heating associated with current and the installed connection. A mating-cycle test concerns repeated mechanical connection and disconnection. A thermal-cycle assessment concerns...
↗Push Button Bilingual Labels: Keep Commands Consistent Across Panel Languages
Push button bilingual labels should identify the same command in both languages, remain associated with the correct control, and stay consistent with drawings, instructions and maintenance records. Translation alone is insufficient. Before releasing a panel, agree on the function name, distinguish commands from status indications, and check the installed labels with representative operators. Do not assume that familiar button colors make unfamiliar wording understandable. This guide gives equipment builders and purchasing teams a practical method for managing two language versions without treating a label change as permission to alter the machine's electrical function or required safety arrangements. Start with a function list rather than translated artwork Create one record for each control and assign it a stable identifier. Record what pressing the button requests, when that action is available and what the operator must observe afterward. Keep that functional description separate from the short wording printed on the panel. A translator needs the longer description to distinguish a start command, a reset request, an acknowledgement and a mode selection. A spreadsheet containing only isolated words often hides those differences. For example, “reset” might refer to acknowledging a message, restoring a sequence or enabling another action. These are different meanings even if a dictionary offers the same translation. Have the equipment designer resolve the intended function first. The language reviewer should then choose wording that expresses that meaning within the available space. Do not ask the translator to infer machine behavior from a photograph of a colored cap. Choose a primary terminology record Maintain an approved terminology list containing the control identifier, source phrase, second-language phrase and a brief explanation. Name who owns the record and who can approve changes. Include...
↗Micro Switch Tin Whiskers: Ask for Terminal Finish Evidence Before Approving a Lot
Micro switch tin whiskers are a materials and reliability question, not something that can be diagnosed from a shiny terminal photograph. First establish the exact terminal finish, lot identity and electrical environment. Then ask whether an applicable whisker-control assessment exists. A general contact rating, RoHS declaration or satisfactory continuity check does not answer that question. If a returned switch is suspected of containing metallic debris, preserve it for qualified examination rather than brushing or spraying it. This guide explains how buyers and engineers can build a useful evidence request without assuming that a particular LEMA switch contains tin plating or has a whisker problem. What the concern actually means Tin whiskers are conductive metallic growths associated with susceptible tin finishes. Their relevance depends on the actual materials, geometry and service requirements of the assembly. An electrically conductive growth can create an unintended connection if it reaches a different potential. Detached material can also complicate an investigation. Those possibilities justify a documented review; they do not establish that every tin-finished component will fail, or that any observed intermittent signal was caused by a whisker. Start with NASA's basic information on tin whiskers for the underlying phenomenon. Its examples concern identified materials and examined hardware. They should not be transferred into an unsupported statement about an unrelated switch. In a purchasing document, write the concern as a question about the supplied construction and its evidence. Avoid statements such as “this terminal is whisker free” unless the responsible supplier has defined what that statement means and provided applicable support. Identify which metal surface is being reviewed A switch contains several functionally different metal parts. External quick-connect tabs, an actuator lever, mounting hardware and...
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