{"product_id":"three-wire-motor-speed-controller-diaphragm-vacuum-pump","title":"Three-Wire Motor Speed Controller for 12V\/24V Diaphragm Pumps","description":"\n\u003ch2\u003eThree-Wire Knob Motor Speed Controller — Built for Diaphragm \u0026amp; Vacuum Pumps\u003c\/h2\u003e\n\u003cp\u003eTake precise control of your 12V or 24V three-wire diaphragm pump with this dedicated \u003cstrong\u003eMotor Speed Regulator Drive Board\u003c\/strong\u003e. Featuring an intuitive knob-style speed control interface and reliable terminal connections, this compact controller lets you dial in exactly the output speed you need — whether you're managing a vacuum pump, fluid transfer system, or custom electronics project.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKnob Speed Control:\u003c\/strong\u003e Simple, responsive rotary knob allows smooth, stepless adjustment of motor output speed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Compatibility:\u003c\/strong\u003e Supports both 12V and 24V three-wire diaphragm pumps for flexible application across multiple setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTerminal Connection Interface:\u003c\/strong\u003e Secure, easy-to-wire terminal block connection for a stable and reliable electrical connection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e Rated for ambient temperatures of -25°C to 65°C (non-icing conditions), making it suitable for diverse environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHumidity Resistant Design:\u003c\/strong\u003e Operates reliably in ambient humidity of 35–95% (non-condensing).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Drive Board Format:\u003c\/strong\u003e Space-saving PCB form factor fits neatly into enclosures, project boxes, or mounting panels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDedicated Design:\u003c\/strong\u003e Engineered specifically for three-wire diaphragm and vacuum pump applications requiring knob-based speed regulation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpeed Control Mode:\u003c\/strong\u003e Knob speed control\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePump Interface:\u003c\/strong\u003e Terminal connection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupported Voltage:\u003c\/strong\u003e 12V \/ 24V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Motor Type:\u003c\/strong\u003e Three-wire DC diaphragm pump \/ vacuum pump\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmbient Temperature:\u003c\/strong\u003e -25°C to 65°C (non-icing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmbient Humidity:\u003c\/strong\u003e 35–95% (non-condensing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Three-Wire Motor Speed Regulator Drive Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDue to variations in lighting and screen calibration, actual product color may differ slightly from images shown.\u003c\/li\u003e\n  \u003cli\u003ePlease allow a tolerance of 1mm–1cm due to manual measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor additional guidance on electrical safety and best practices when working with motor control circuits, visit the \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Electrical Safety Resource\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What types of pumps is this motor speed controller compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This speed regulator drive board is specifically designed for three-wire 12V and 24V DC diaphragm pumps and vacuum pumps. It is ideal for applications requiring knob-based, stepless speed control via a terminal connection interface.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I connect the motor speed controller to my pump?\u003c\/h4\u003e\n\u003cp\u003eA: The drive board uses a terminal block connection interface. Simply wire your three-wire diaphragm or vacuum pump leads into the corresponding terminals on the board, connect your 12V or 24V DC power supply, and use the rotary knob to adjust motor output speed as needed.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this speed controller be used outdoors or in humid environments?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The controller is rated for ambient temperatures between -25°C and 65°C (non-icing) and operates in humidity levels of 35–95% (non-condensing), making it suitable for a range of indoor and sheltered outdoor applications.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of pumps is this motor speed controller compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This speed regulator drive board is specifically designed for three-wire 12V and 24V DC diaphragm pumps and vacuum pumps. It is ideal for applications requiring knob-based, stepless speed control via a terminal connection interface.\"}}, {\"@type\": \"Question\", \"name\": \"How do I connect the motor speed controller to my pump?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The drive board uses a terminal block connection interface. Simply wire your three-wire diaphragm or vacuum pump leads into the corresponding terminals on the board, connect your 12V or 24V DC power supply, and use the rotary knob to adjust motor output speed as needed.\"}}, {\"@type\": \"Question\", \"name\": \"Can this speed controller be used outdoors or in humid environments?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The controller is rated for ambient temperatures between -25°C and 65°C (non-icing) and operates in humidity levels of 35–95% (non-condensing), making it suitable for a range of indoor and sheltered outdoor applications.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Three-Wire Motor Speed Controller for 12V\/24V Diaphragm Pumps\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/three-wire-motor-speed-controller-diaphragm-vacuum-pump\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"Default Title","offer_id":48749751894208,"sku":"\u003cnone\u003e","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/S7b10f5ddad1746d38ad40b185cd4a8833.webp?v=1786208527","url":"https:\/\/vueselect.com\/products\/three-wire-motor-speed-controller-diaphragm-vacuum-pump","provider":"Vue","version":"1.0","type":"link"}