{"product_id":"dc-12-36v-40a-pwm-brush-motor-speed-controller-potentiometer","title":"DC 12-36V 40A PWM Brush Motor Speed Controller \u0026 Governor","description":"\n\u003ch2\u003eDC 12–36V 40A PWM Brush Motor Speed Controller with Potentiometer\u003c\/h2\u003e\n\u003cp\u003eTake precise control of your DC brush motor with this robust PWM Motor Speed Controller. Designed for a wide input voltage range of 12V to 36V and a continuous current rating of 40A (peak 60A), this governor delivers smooth, stepless speed regulation from 0% to 100%. The built-in 21 kHz control frequency ensures quiet, efficient operation with minimal electromagnetic interference — ideal for DIY projects, industrial equipment, electric vehicles, conveyor systems, and more.\u003c\/p\u003e\n\u003cp\u003eThe integrated potentiometer with on\/off switch makes adjustment intuitive and straightforward. Its compact, panel-mount design fits neatly into enclosures, control boxes, and custom builds. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Compatible with DC 12V, 24V, and 36V systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Continuous Current:\u003c\/strong\u003e 40A continuous \/ 60A peak output for demanding applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Speed Range:\u003c\/strong\u003e Stepless 0%–100% speed regulation via potentiometer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e21 kHz PWM Frequency:\u003c\/strong\u003e Smooth, low-noise motor control with reduced heat generation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in Switch:\u003c\/strong\u003e Potentiometer includes an integrated on\/off switch for added convenience\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Panel Design:\u003c\/strong\u003e Easy panel mounting with a center distance of 119mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLinear Output Under Load:\u003c\/strong\u003e Consistent voltage output for stable motor performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC 12V – 36V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eLinear under load\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePeak Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e60A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eContinuous Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e40A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSpeed Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0% – 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eControl Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e21 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSpeed Regulation Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePotentiometer with switch\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePanel Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e88 × 48 × 26 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePanel Mounting Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e83 × 44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOverall Product Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e110 × 71 × 37 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMounting Center Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e119 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC Brush Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× PWM Motor Speed Controller \/ Governor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDue to lighting and screen differences, the item's color may vary slightly from the pictures.\u003c\/li\u003e\n  \u003cli\u003ePlease allow 1mm–10mm differences due to manual measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLearn More About Electrical Safety\u003c\/h3\u003e\n\u003cp\u003eWhen working with DC motor controllers and high-current wiring, always follow proper electrical safety guidelines. Visit \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"nofollow noopener\"\u003eOSHA's Electrical Safety Resources\u003c\/a\u003e for best practices on safely handling electrical components and systems.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What types of motors is this PWM speed controller compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This controller is designed specifically for DC brush motors operating within a 12V to 36V range. It is not suitable for brushless motors, AC motors, or stepper motors. Always verify your motor's voltage and current ratings before connecting.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between the 40A continuous current and the 60A peak current rating?\u003c\/h4\u003e\n\u003cp\u003eA: The 40A continuous current is the safe, sustained load the controller can handle during normal operation. The 60A peak rating refers to the short-term maximum current the unit can tolerate during motor startup or load spikes. For reliable long-term use, ensure your motor's running current stays at or below 40A.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I mount this motor speed controller in a panel or enclosure?\u003c\/h4\u003e\n\u003cp\u003eA: The controller features a panel mounting cutout of 83 × 44 mm and a mounting center distance of 119 mm. Simply cut the appropriate opening in your enclosure panel, insert the unit, and secure it using the provided mounting holes. The compact 110 × 71 × 37 mm overall footprint fits most standard control boxes.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this controller for a 24V electric scooter or bike motor?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — as long as your motor is a DC brush type operating at 24V and drawing no more than 40A continuously, this PWM governor is a suitable choice. Always double-check your motor's specifications and ensure proper fusing and wiring gauge for your application.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of motors is this PWM speed controller compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This controller is designed specifically for DC brush motors operating within a 12V to 36V range. It is not suitable for brushless motors, AC motors, or stepper motors. Always verify your motor's voltage and current ratings before connecting.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between the 40A continuous current and the 60A peak current rating?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 40A continuous current is the safe, sustained load the controller can handle during normal operation. 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