{"product_id":"cnc-ycqr7-motor-soft-starter","title":"Motor Soft Starter 5.5–22 kW | Intelligent Reduced-Voltage Soft Starter (YCQR7)","description":"\u003cdiv style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;font-size:15px;line-height:1.7;color:#222;max-width:820px;margin:0 auto;\"\u003e\n\n\u003cdiv style=\"background:#fff5f5;border-left:4px solid #d42027;padding:16px 18px;margin:0 0 24px;border-radius:4px;\"\u003e\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0;\"\u003e\u003cstrong\u003eQuick answer:\u003c\/strong\u003e The CNC YCQR7 is an \u003cstrong\u003eintelligent reduced-voltage soft starter\u003c\/strong\u003e for three-phase squirrel-cage motors. It ramps a motor up smoothly instead of slamming it to full power — cutting mechanical shock, belt and gearbox wear, and the heavy start-up inrush that dips your supply. It covers \u003cstrong\u003e5.5 kW to 450 kW\u003c\/strong\u003e on a 380 V supply, with an adjustable start and full motor protection built in. Price on request — send your motor kW on WhatsApp for the right model.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eStarting a large motor direct-on-line throws up to six or seven times its running current at the supply and snaps the shaft straight to full torque. On pumps that means water hammer; on conveyors and compressors it means jerked belts and stressed gearboxes; across the site it means a voltage dip that can trip other equipment. A \u003cstrong\u003esoft starter\u003c\/strong\u003e solves all of that by ramping the voltage up gradually over a few seconds, so the motor accelerates smoothly and the inrush is held in check.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:700;margin-top:34px;margin-bottom:12px;color:#111;\"\u003eWhat the YCQR7 soft starter does\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eThe YCQR7 sits between the supply and the motor and controls thyristors to raise the voltage on a set ramp, bringing the motor up to speed gently before handing over to a run state. It also \u003cstrong\u003esoft-stops\u003c\/strong\u003e — easing the motor down rather than letting it coast or slam off, which is important on pumps to avoid water hammer. Throughout, it continuously protects the motor, and it can be commanded and monitored remotely over RS485 (Modbus RTU) with a 4-line LCD and keypad on the front.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:700;margin-top:34px;margin-bottom:12px;color:#111;\"\u003eModel range and frame sizes\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eThe YCQR7 covers \u003cstrong\u003e5.5–450 kW\u003c\/strong\u003e on an AC 380 V supply. CNC publishes the range by power band and frame size — send your exact motor rating and we'll confirm the model:\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d0d0d0;background:#f0f0f0;padding:10px;text-align:left;font-weight:700;\"\u003ePower band\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d0d0;background:#f0f0f0;padding:10px;text-align:left;font-weight:700;\"\u003eExternal size W×H×D (mm)\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d0d0;background:#f0f0f0;padding:10px;text-align:left;font-weight:700;\"\u003eMounting\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e18.5–37 kW\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e105 × 240 × 170\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e85 × 214, M6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e45–75 kW\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e150 × 280 × 179\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e117 × 240, M6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e90–115 kW\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e200 × 370 × 214\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e168 × 328, M6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eUnits up to 115 kW share one construction; from 132 kW up the wiring changes. A cabinet version, the \u003cstrong\u003eYCQR7-G soft-start control cabinet\u003c\/strong\u003e, is also available in 5.5–30 kW, 37–45 kW and 55–115 kW bands for panel-ready installation.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:700;margin-top:34px;margin-bottom:12px;color:#111;\"\u003eKey specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d0d0d0;background:#f0f0f0;padding:10px;text-align:left;font-weight:700;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d0d0;background:#f0f0f0;padding:10px;text-align:left;font-weight:700;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eApplicable load\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e3-phase squirrel-cage asynchronous motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003ePower range\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e5.5–450 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eRated voltage\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eAC 380 V ±15%, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eOverload capacity\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e400% for 60 s; 120% continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eAdjustable start current\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e1 to 5× rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eSoft-start \/ soft-stop time\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e1–90 s \/ 0–60 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eCooling\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eForced air\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eCommunication\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eRS485, Modbus RTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eDisplay\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e4-line LCD + 6 keys (Chinese \/ English)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eStandard\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eIEC 60947-4-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003eAmbient \/ altitude\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d0d0;padding:10px;\"\u003e−10 to +40 °C (up to +50 °C), ≤3000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:700;margin-top:34px;margin-bottom:12px;color:#111;\"\u003eBuilt-in protections\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eThe YCQR7 protects the motor and itself against \u003cstrong\u003eshort circuit (instantaneous quick-break), over-current, overheating, inverse-time overload (class 1–5 selectable), input phase loss, current imbalance, under-voltage, over-voltage, underload, start failure and phase-sequence error\u003c\/strong\u003e — so a fault stops the motor instead of burning it out.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:700;margin-top:34px;margin-bottom:12px;color:#111;\"\u003eWhat the YCQR7 does \u003cem\u003enot\u003c\/em\u003e do\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eA soft starter controls the \u003cstrong\u003estart and stop\u003c\/strong\u003e of a fixed-speed motor — it does not vary the motor's speed once it's running. If you need ongoing speed control, use a variable frequency drive like the \u003ca href=\"\/products\/cnc-ycb600-vector-frequency-inverter-vfd\" style=\"color:#d42027;text-decoration:underline;\"\u003eCNC YCB600\u003c\/a\u003e instead. It also isn't a substitute for the upstream breaker and contactor around the motor. For a single unit that combines switching and protection, see the \u003ca href=\"\/products\/cnc-yckb7-control-protective-switching-cps-motor-starter\" style=\"color:#d42027;text-decoration:underline;\"\u003eCNC YCKB7 integrated motor starter\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:700;margin-top:34px;margin-bottom:12px;color:#111;\"\u003eDownloads\u003c\/h2\u003e\n\u003cul style=\"margin:0 0 16px;padding-left:22px;\"\u003e\n\u003cli style=\"font-size:15px;line-height:1.7;margin-bottom:8px;\"\u003e\u003ca href=\"https:\/\/www.cncele.com\/uploads\/YCQR7-Soft-Starter20240903.pdf\" style=\"color:#d42027;text-decoration:underline;\"\u003eYCQR7 soft starter catalogue (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"font-size:15px;line-height:1.7;margin-bottom:8px;\"\u003e\u003ca href=\"https:\/\/www.cncele.com\/uploads\/YCQR7-G-Soft-Starter.pdf\" style=\"color:#d42027;text-decoration:underline;\"\u003eYCQR7-G control cabinet catalogue (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"font-size:15px;line-height:1.7;margin-bottom:8px;\"\u003e\u003ca href=\"https:\/\/www.cncele.com\/uploads\/YCQR7%E6%93%8D%E4%BD%9C%E6%89%8B%E5%86%8C-%E8%8B%B1%E6%96%87%E7%89%889.11.pdf\" style=\"color:#d42027;text-decoration:underline;\"\u003eYCQR7 operation manual — English (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:700;margin-top:34px;margin-bottom:12px;color:#111;\"\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;margin-top:22px;margin-bottom:6px;color:#111;\"\u003eWhat is a soft starter and why use one?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eA soft starter gradually raises the voltage to a motor at start-up so it accelerates smoothly instead of jumping to full torque. That reduces the mechanical shock on belts, couplings and gearboxes, avoids water hammer on pumps, and limits the start-up inrush current that dips your supply and trips other equipment.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;margin-top:22px;margin-bottom:6px;color:#111;\"\u003eWhat is the difference between a soft starter and a VFD?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eA soft starter only controls the start and stop; once the motor is running it turns at normal mains speed. A VFD (variable frequency drive) controls speed continuously. If you just need gentle starts on a fixed-speed motor, a soft starter is more economical; if you need to vary speed, use a VFD like the YCB600.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;margin-top:22px;margin-bottom:6px;color:#111;\"\u003eSoft starter vs star-delta starting?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eStar-delta cuts starting current in fixed steps and jolts the motor at the star-to-delta changeover. A soft starter ramps voltage smoothly with no changeover jolt, gives an adjustable start, adds soft-stop, and protects the motor — a cleaner result for most modern installations.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;margin-top:22px;margin-bottom:6px;color:#111;\"\u003eWhat size YCQR7 do I need?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eMatch it to your motor kW and supply. The range runs 5.5–450 kW at 380 V. Send us the motor nameplate (kW and full-load current) and we will confirm the exact model and frame.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;margin-top:22px;margin-bottom:6px;color:#111;\"\u003eCan it soft-stop a pump to prevent water hammer?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eYes. The adjustable soft-stop (0–60 s) eases the pump down gradually rather than cutting power abruptly, which prevents the pressure surge that damages pipework and check valves.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;margin-top:22px;margin-bottom:6px;color:#111;\"\u003eCan it be controlled from a PLC?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0 0 14px;\"\u003eYes — built-in RS485 with Modbus RTU lets the YCQR7 be started, stopped and monitored from a PLC or control system, and the front LCD gives local status and settings.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f7f7f9;border-left:4px solid #d42027;padding:16px 18px;margin:28px 0;border-radius:4px;\"\u003e\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0;\"\u003e\u003cstrong\u003eNeed speed control, not just a soft start?\u003c\/strong\u003e See the \u003ca href=\"\/products\/cnc-ycb600-vector-frequency-inverter-vfd\" style=\"color:#d42027;text-decoration:underline;\"\u003eCNC YCB600 vector VFD\u003c\/a\u003e. For the full range of industrial control gear, browse \u003ca href=\"\/collections\/industrial-products\" style=\"color:#d42027;text-decoration:underline;\"\u003eCNC industrial products\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#fff5f5;border:1px solid #f0c9c9;padding:16px 18px;margin:24px 0 0;border-radius:4px;\"\u003e\n\u003cp style=\"font-size:15px;line-height:1.7;margin:0;\"\u003eSend us your motor kW, supply voltage and application and we'll confirm the exact YCQR7 model. \u003cstrong\u003eCNC Electric\u003c\/strong\u003e is the authorised CNC distributor in Pakistan — \u003ca href=\"https:\/\/wa.me\/923261111376\" style=\"color:#d42027;text-decoration:underline;\"\u003emessage us on WhatsApp\u003c\/a\u003e for a price and quote.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n","brand":"CNC","offers":[{"title":"5.5 kW","offer_id":45153522778178,"sku":"YCQR7-5.5","price":0.0,"currency_code":"PKR","in_stock":true},{"title":"7.5 kW","offer_id":45153522810946,"sku":"YCQR7-7.5","price":0.0,"currency_code":"PKR","in_stock":true},{"title":"11 kW","offer_id":45153522843714,"sku":"YCQR7-011","price":0.0,"currency_code":"PKR","in_stock":true},{"title":"15 kW","offer_id":45153522876482,"sku":"YCQR7-015","price":0.0,"currency_code":"PKR","in_stock":true},{"title":"22 kW","offer_id":45153522909250,"sku":"YCQR7-022","price":0.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/2059\/5522\/files\/YCQR7-45-600x600.jpg?v=1788507688","url":"https:\/\/www.cncelectric.pk\/products\/cnc-ycqr7-motor-soft-starter","provider":"CNC Electric Pakistan","version":"1.0","type":"link"}