{"product_id":"harmar-summit-wheelchair-lift-speed-control-circuit-board","title":"Harmar Summit Wheelchair Lift Speed Control Circuit Board","description":"\u003cp\u003e12\/24 V PWM DC motor speed controller board for select Harmar and Summit vertical platform lifts originally equipped with #46103; adjustable 0–100% motor speed control.\u003c\/p\u003e\n\u003cp data-start=\"446\" data-end=\"896\"\u003eThis 12\/24 V DC PWM motor speed controller board delivers up to 30 A and provides adjustable pulse‑width modulation (PWM) output to control motor speed in compatible vertical platform lift applications replacing #46103. Designed as a direct‑fit board with the same outline and mounting footprint as the original, this controller requires professional configuration of speed parameters by a qualified technician familiar with your specific lift model.\u003c\/p\u003e\n\u003cp data-start=\"898\" data-end=\"1424\"\u003e• \u003cstrong data-start=\"900\" data-end=\"923\"\u003eInput\/Load voltage:\u003c\/strong\u003e 12\/24 V DC, selectable via jumper\u003cbr data-start=\"957\" data-end=\"960\"\u003e• \u003cstrong data-start=\"962\" data-end=\"993\"\u003eMaximum continuous current:\u003c\/strong\u003e 30 A DC PWM output load\u003cbr data-start=\"1017\" data-end=\"1020\"\u003e• \u003cstrong data-start=\"1022\" data-end=\"1046\"\u003eSpeed control range:\u003c\/strong\u003e 0 %–100 % adjustable PWM duty cycle\u003cbr data-start=\"1082\" data-end=\"1085\"\u003e• \u003cstrong data-start=\"1087\" data-end=\"1105\"\u003ePWM frequency:\u003c\/strong\u003e ~100 Hz for DC motor speed regulation\u003cbr data-start=\"1143\" data-end=\"1146\"\u003e• \u003cstrong data-start=\"1148\" data-end=\"1163\"\u003eBoard size:\u003c\/strong\u003e ~3.85″ × 1.59″ × 1.25″ (approx. 100 mm × 40 mm × 30 mm)\u003cbr data-start=\"1219\" data-end=\"1222\"\u003e• \u003cstrong data-start=\"1224\" data-end=\"1241\"\u003eControl type:\u003c\/strong\u003e Potentiometer‑based PWM signal adjustment\u003cbr data-start=\"1283\" data-end=\"1286\"\u003e• \u003cstrong data-start=\"1288\" data-end=\"1306\"\u003eCompatibility:\u003c\/strong\u003e Drop‑in replacement for lifts originally using #46103; fits Harmar \u0026amp; Summit VPLs with that controller board footprint\u003c\/p\u003e\n\u003cp data-start=\"1426\" data-end=\"1682\"\u003eThis product is intended for use by technicians experienced with motor control systems and PWM speed setup; it does not ship pre‑set to a specific speed. Ensure proper selection and calibration are performed in accordance with lift manufacturer parameters.\u003c\/p\u003e\n\u003cp data-start=\"1684\" data-end=\"1953\"\u003eInstallation of this controller board should be performed by qualified service personnel only to maintain compliance with safety standards and to ensure reliable operation in mobility lift systems. Proper installation and setup help uphold safe, consistent performance.\u003c\/p\u003e","brand":"Harmar","offers":[{"title":"Default Title","offer_id":46403376054434,"sku":"PCB.HRM.SCB","price":91.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/7949\/1234\/files\/Harmar-Summit-Speed-Control-Circuit-Board-46103_1.png?v=1776195014","url":"https:\/\/liftpartspro.com\/products\/harmar-summit-wheelchair-lift-speed-control-circuit-board","provider":"Lift Parts Pro","version":"1.0","type":"link"}