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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Customer recognition is our greatest motivation.
NEWS
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How to Test a Push Button Switch With a Multimeter
To test a push button switch with a multimeter, first establish a safe de-energized condition and isolate the contacts from other circuit paths. Identify the intended contact pair from the exact switch drawing, check the meter and leads, then record the reading with the button released, pressed and released again. A normally open pair should change from open to closed when operated; a normally closed pair should do the reverse, according to its documented mechanism. This procedure checks contact-state behavior. It does not prove load capacity, endurance, safety certification or the complete machine response. This guide is a bench measurement and recordkeeping workflow for ordinary discrete push button contacts. Electronic touch buttons, illuminated assemblies and protective devices may require different procedures. The product illustrations show a LEMA PBS example for identification; they are not universal pin-number diagrams or instructions for live testing. Define the question before selecting a meter function Decide whether you need to identify a contact pair, confirm released and operated states, investigate an unstable reading or compare a sample against an approved requirement. These are related questions but have different conclusions. A continuity test can reveal an open connection or a state change. It cannot establish the correct electrical duty for a motor, determine an endurance rating or approve a protective control. For a machine that fails to respond, use the separate push button troubleshooting guide to distinguish actuator, wiring and controller faults. This article focuses on repeatable isolated measurements. Do not remove a working button from its circuit merely because the controller’s response is unfamiliar; start with the equipment schematic and documented command sequence. Have the exact order code, terminal drawing and action description available. Identify...
↗Industrial Foot Switch Replacement: Match Action, Cable and Interface
An industrial foot switch replacement must preserve the original command behavior, electrical interface and installation requirements. A similar pedal shape or matching plug is not enough. Record the original part and machine response, compare the candidate against the approved documentation, and validate the finished assembly before return to service. This guide covers ordinary industrial command pedals and their replacement evidence. It does not approve substitutions in emergency-stop, enabling, guarding or other protective functions, and it does not address guitar effects, sewing-machine speed controllers or household lamp foot switches. For equipment builders and maintenance buyers, the practical question is whether a proposed substitute reproduces the complete approved function. The pedal, cable, connector and receiving input all matter. Keep that comparison separate from a catalogue search so availability does not silently override the machine requirements. Capture the original configuration before removal Record the full pedal order code, visible markings, cable identification, connector details and machine drawing revision. Photograph the as-installed location and routing before moving anything. Note whether the unit is loose on the floor, fixed to a support or part of a guarded station. Include any secondary command, indicator or mechanical feature that participates in normal operation. Write down what the machine does when the operator presses and releases the pedal. Distinguish a momentary command from a maintained state and from a controller that retains a command after a short press. Observe the documented sequence rather than conducting an unsafe experiment. If the machine is already faulty, use the approved description and records; the failed behavior is not the reference that the replacement should reproduce. Consult the industrial electric foot switch selection guide when reconstructing the initial requirements. A replacement review...
↗Equipment Power Socket Polarity: Verify the Complete Supply Path
Equipment power socket polarity means the intended line, neutral and protective conductor paths remain correctly identified through the cord, connector, inlet and internal assembly. Alternating current does not make those conductor roles interchangeable. Verify the exact connector drawing and equipment circuit before interpreting a photograph or performing a test. A connector that fits, a machine that powers on, or a three-light socket tester alone does not prove the complete assembly is correct. This guide focuses on equipment inlet identity and verification records, rather than household receptacle repair or a universal pin-position diagram. The intended readers are equipment builders, procurement teams and competent maintenance personnel. Electrical inspection and testing must follow the actual equipment requirements and workplace procedures. The illustrated product is a visual reference, not a verified wiring assignment. Do not infer a terminal function from the location shown in an illustration. Separate polarity from protective earthing In a supply system that distinguishes line and neutral, polarity concerns the connection of those conductors to their intended points. Protective earth, when required by the equipment design, serves a different purpose. It is part of a protective path rather than a substitute return conductor. Do not connect neutral to an enclosure inside the equipment simply because both conductors may have an earth-related relationship elsewhere in a particular supply system. The design determines how the inlet, protective devices and internal circuit relate. A correct inlet termination does not establish that the complete cord assembly or upstream installation is correct. Equally, a correct supply socket cannot compensate for a miswired internal harness. Review these as connected parts of one path, with each boundary clearly identified in the verification record. For the protective-path design itself,...
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