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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DPDT Polarity Reversing Toggle Switch Wiring Guide
A DPDT toggle switch can reverse the polarity applied to a two-wire permanent-magnet DC motor by swapping both motor connections at the same time. In a common six-terminal layout, connect the motor to the two center common terminals and arrange the positive and negative supply on opposite outer corners so the two switch positions exchange polarity. The terminal view is not universal: identify common and throw terminals from the exact switch drawing or with a continuity meter before wiring. This is a circuit-topology explanation, not approval to switch a particular motor directly. DC motor startup and stall current can be much higher than running current, and a motor is an inductive load. The LEMA LT2210C product information shown for this example lists AC ratings; it does not establish a DC motor switching rating. Use a DPDT part with a published DC rating for the actual motor duty, or use a properly rated relay/contactor or motor driver. Actual LT2210C product image. It identifies a three-position DPDT product; confirm the exact wiring diagram and DC load rating separately. What DPDT means in a reversing circuit DPDT means double pole, double throw: the switch controls two separate paths, and each pole can connect its common terminal to one of two throws. In a polarity-reversing circuit, the two poles change both motor leads together. One switch position applies positive to motor lead A and negative to lead B; the other position swaps those connections. Reversing the voltage polarity across a brushed permanent-magnet DC motor reverses its direction, as SparkFun’s DC brush motor guide explains. A switch marked ON-OFF-ON has a third, center detent that disconnects both poles. That is often useful for a manual...
↗Limit Switch AC vs DC Contact Ratings: Selection Guide
A limit switch does not have one universal “amp rating.” Its permissible load depends on the exact model, voltage, AC or DC supply, load type, switching frequency, and the manufacturer’s test conditions. An AC contact rating cannot be carried over to DC by using the same current or by converting watts. Check the rating printed for the specific contact block and use case before connecting a real load. This guide explains how to read AC/DC contact ratings and gives one LEMA LZ5 example. It is not a blanket approval for every LZ5 configuration: confirm the order code, datasheet revision, terminal form, environment, and actual load with the supplier before design release. Actual LZ5 product reference. The pictured actuator and housing identify the product family, not the electrical limits for every variant. What a contact rating does—and does not—tell you A rating is a boundary established under specified test conditions, not a promise that any load below the printed amp number will work for the required lifetime. Read the full line: voltage, current, AC or DC, and any load category or power-factor/time-constant condition. Also check whether the figure describes making current, carrying current, or breaking a load. Those duties are not interchangeable. In a machine, a limit switch often senses position and signals a PLC or relay rather than directly carrying motor power. A PLC input is usually a low-energy control load; a contactor coil is inductive; and a motor is an inrush-heavy load. The same switch contact can experience very different stress in each case. If the switch only needs to report position, an appropriately designed control input or an interposing relay may keep the switch away from the power...
↗PCB Mount Micro Switch: Footprint, Soldering & Actuation
A PCB-mount micro switch is not a generic three-pin component with a universal footprint. Before laying out copper, identify the exact terminal variant, confirm the manufacturer’s drawing, map COM/NO/NC, and leave enough space for the actuator and its full travel. For an OEM design, the board footprint, mechanical support, solder process, and electrical duty must be checked together. This guide uses the LEMA KW10-0P as a product-specific example. It is a small snap-action switch with straight PCB terminals; the family also illustrates why terminal suffixes matter. Do not copy a footprint or solder profile from another KW10 variant without matching the exact drawing and controlled specification. The actual KW10-0P product reference: verify the terminal style and case orientation against the selected part number. What makes a micro switch PCB-mountable? A PCB-mount switch has terminal geometry intended to enter or connect to a printed circuit board. That description alone does not tell you whether the part is through-hole, how much of the terminal is designed to be soldered, whether the switch body needs a separate support, or what board-hole dimensions to use. Product families may offer straight PCB pins, self-fixing pins, solder lugs, quick-connect tabs, and wire terminals. These are distinct interfaces, not interchangeable names for the same footprint. For example, the KW10 terminal reference image distinguishes straight PCB terminals from a self-fixing PCB terminal and a solder terminal. The suffix and exact drawing determine which one is supplied. A straight pin may rely on the PCB and fixture to hold alignment during assembly; a self-fixing form may use a different pin shape. Neither should be assumed from a photograph of the switch top alone. Start with the drawing, not a...
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