{"product_id":"se-920-v-type-mini-micro-limit-switch-4-pin-4a-250v-snap-action-basic-switch","title":"SE 920 V-Type Mini Micro Limit Switch (4-Pin, 4A 250V) – Snap Action Basic Switch","description":"\u003ch5\u003eOverview \u0026amp; Features\u003c\/h5\u003e\n\u003cp\u003eEnsure precise mechanical contact detection and reliable electrical switching with the \u003cstrong\u003eSE 920 V-Type Mini Micro Limit Switch\u003c\/strong\u003e. Operating on a highly responsive snap-action mechanism, this V-type basic switch is a highly versatile electromechanical component essential for triggering endstops, detecting door closures, and sensing physical limits in compact automation spaces.\u003c\/p\u003e\n\n\u003cp\u003eAvailable at Tomson Electronics, this specific SE 920 model features a 4-pin configuration, offering versatile wiring options for dual-circuit control or redundant signaling. Rated for a continuous 4A load at 250V AC, it easily bridges the gap between logic-level microcontroller inputs and direct low-power appliance switching. The robust flame-retardant body and high-quality internal contacts ensure rapid state changes and a mechanical lifespan designed for heavy, repeated use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAlso searched as:\u003c\/strong\u003e se920 v type switch, 4 pin micro switch, basic limit switch, snap action v-switch, 4a appliance door switch, mini micro switch 4 terminal.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch5\u003eTechnical Specifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SE 920\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch Form Factor:\u003c\/strong\u003e V-Type (Basic)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Count:\u003c\/strong\u003e 4 Pins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent \u0026amp; Voltage Rating:\u003c\/strong\u003e 4A at 250V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitching Action:\u003c\/strong\u003e Momentary Snap-Action\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Quick Connect \/ Solder (Brass)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Flame-retardant Plastic (Polyamide\/PBT)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eCommon Applications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome Appliances:\u003c\/strong\u003e Operating as essential safety interlocks, power interrupts, and door closure detectors for microwaves, washing machines, and HVAC units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Automation:\u003c\/strong\u003e Serving as reliable limit switches on conveyor belts and packaging machinery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC \u0026amp; 3D Printing:\u003c\/strong\u003e Acting as compact mechanical endstops and homing switches for X\/Y\/Z axis travel limits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Robotics:\u003c\/strong\u003e Providing tactile collision detection and bumper sensing for autonomous custom rovers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eFrequently Asked Questions\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I wire a 4-pin micro switch?\u003c\/strong\u003e\u003cbr\u003e\nA: The 4-pin configuration typically provides separated pairs for Normally Open (NO) and Normally Closed (NC) circuits, or acts as a Double Pole (DPST) switch. It is highly recommended to use a multimeter on the continuity setting to test which pin pairs connect and disconnect when the button is depressed before wiring them into your final circuit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this with an Arduino or Raspberry Pi?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. When using this switch for low-voltage logic signals, ensure you implement a pull-up or pull-down resistor (or activate the internal \u003ccode\u003eINPUT_PULLUP\u003c\/code\u003e in your code) to prevent the input pins from floating when the switch is open.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this safe for AC mains voltage?\u003c\/strong\u003e\u003cbr\u003e\nA: The switch is rated to handle up to 250V AC at 4A. However, whenever working with mains voltage, you must ensure all exposed terminals are heavily insulated with heat shrink tubing or insulated spade connectors, and the switch is mounted inside a grounded or non-conductive enclosure.\u003c\/p\u003e\n\n\u003ch5\u003ePackage Includes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e1 × SE 920 V-Type Mini Micro Limit Switch (4-Pin)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOYNIA ELECTRONICS","offers":[{"title":"Default Title","offer_id":49519299068142,"sku":"SWT-03588","price":24.78,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2132\/9029\/files\/se920-mini-micro-switch-basic-500x500.jpg?v=1788197769","url":"https:\/\/www.tomsonelectronics.com\/products\/se-920-v-type-mini-micro-limit-switch-4-pin-4a-250v-snap-action-basic-switch","provider":"Tomson Electronics ","version":"1.0","type":"link"}