{"product_id":"castair-motor-30-hp-3-phase-208-230-460-voltage-1-15-ser-factor-76-72-36-amp-draw-286t-frame-1725-rpm-1-7-8-shaft-380-wt-30-286-3","title":"Castair Motor 30 HP 3\t Phase 208\/230\/460 Voltage 1.15 Ser. Factor\t76\/72\/36 AMP Draw 286T Frame  1725 RPM 1 7\/8 Shaft 380 WT 30-286-3","description":"\u003ch2\u003eCastair Motor — 30 HP, 3-Phase, 208\/230\/460V, 286T Frame, 1725 RPM (30-286-3)\u003c\/h2\u003e\n\u003cp\u003eThe Castair 30-286-3 is a 30 horsepower, three-phase industrial motor in a 286T NEMA frame, designed for large-capacity reciprocating air compressor applications. At $2,712.29, this is not a routine maintenance item — it is a major drive component for a serious industrial compressor installation. The tri-voltage design (208\/230\/460V) means it can be configured for most three-phase industrial power supplies. If the motor on your Castair large-frame compressor has failed, this is the OEM replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eManufacturer page data was not available for this listing. Specifications are drawn from the product name and standard industrial motor nomenclature. Call 866-217-0063 before ordering — at this price point, confirming exact specs and fitment is essential.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eMotor Specifications Explained\u003c\/h2\u003e\n\u003ch3\u003eFull Nameplate Data\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 30-286-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 30 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 208\/230\/460V three-phase (tri-voltage)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e 3-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService Factor:\u003c\/strong\u003e 1.15 — the motor can be continuously operated at 15% above its rated HP (34.5 HP) without damage under correct conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmp Draw:\u003c\/strong\u003e 76A at 208V \/ 72A at 230V \/ 36A at 460V — use these values to size your starter, breaker, and wire gauge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNEMA Frame:\u003c\/strong\u003e 286T — a large frame, indicating a substantial physical motor. The \"T\" suffix denotes the current NEMA frame standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e 1725 RPM — standard 4-pole motor speed on 60Hz power (synchronous: 1800 RPM; rated speed under load: 1725 RPM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 1 7\/8 inches — a large shaft appropriate for the torque output of a 30 HP motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 380 lbs — plan your installation accordingly; this motor requires a hoist or engine crane for safe handling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e $2,712.29\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUnderstanding the 286T Frame\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNEMA 286T frame defines specific mounting dimensions: shaft height, mounting hole pattern, and shaft length\u003c\/li\u003e\n\u003cli\u003eShaft height (center of shaft to base): 7.125 inches\u003c\/li\u003e\n\u003cli\u003eThe replacement motor must be a 286T frame to bolt into the existing motor base — a different frame will not fit without fabricating a new motor base\u003c\/li\u003e\n\u003cli\u003eConfirm whether your compressor uses foot-mount (frame) or flange-mount (C-face or D-face) motor mounting before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat Shops Run 30 HP Compressor Systems\u003c\/h2\u003e\n\u003ch3\u003eApplications and Users\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty auto and truck shops:\u003c\/strong\u003e Fleet maintenance facilities, truck dealerships, and heavy equipment shops that run multiple air tools simultaneously at high duty cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody shops with large spray booths:\u003c\/strong\u003e Paint spray requires clean, dry, high-volume air — a 30 HP system can supply multiple booths\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial manufacturing:\u003c\/strong\u003e Assembly lines, pneumatic automation, blast cabinets, and other continuous-duty air consumers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTire and service centers:\u003c\/strong\u003e High-volume tire shops and quick-lube facilities with continuous air demand\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBefore You Order\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm your supply voltage:\u003c\/strong\u003e 208V, 230V, and 460V installations use different starter and wire specifications even with a tri-voltage motor — the motor wiring must be configured for the supply voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify amp capacity:\u003c\/strong\u003e At 76A (208V) or 36A (460V), confirm your panel, disconnect, and wire runs are sized for this load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck rotation:\u003c\/strong\u003e Most compressor pumps require a specific motor rotation direction — verify before installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspect the drive:\u003c\/strong\u003e A failed motor may have also damaged the drive belt, flywheel, and pump bearings — inspect all components before restarting the system with a new motor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x Castair 30 HP, 3-phase, 208\/230\/460V motor, 286T frame, 1725 RPM, 1-7\/8\" shaft\u003c\/li\u003e\n\u003cli\u003eMotor wiring diagram (typically attached to motor terminal box)\u003c\/li\u003e\n\u003cli\u003eNote: Starter, pulleys, belts, and mounting hardware are not included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 30-286-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 30 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 208\/230\/460V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e 3-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService Factor:\u003c\/strong\u003e 1.15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Load Amps:\u003c\/strong\u003e 76 \/ 72 \/ 36 (208V \/ 230V \/ 460V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNEMA Frame:\u003c\/strong\u003e 286T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e 1725 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 1-7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 380 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e $2,712.29\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialist since 2016\u003c\/strong\u003e in industrial air compressor components — we stock and supply large-frame motors and major components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e on qualifying orders — we will coordinate freight shipping for a motor this size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree tech support at 866-217-0063\u003c\/strong\u003e — please call before ordering this motor. At $2,712, confirming the exact frame, voltage, and shaft spec is the right move. We would rather spend 10 minutes on the phone than process a return on a 380-pound motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull manufacturer warranty\u003c\/strong\u003e on Cast Air motors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonest guidance:\u003c\/strong\u003e We will tell you if a different motor spec is a better fit for your application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342507368661,"sku":"30-286-3","price":5001.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/motors_6ee41f2a-7c42-432f-86ae-145f73a26f91.jpg?v=1772652518","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-motor-30-hp-3-phase-208-230-460-voltage-1-15-ser-factor-76-72-36-amp-draw-286t-frame-1725-rpm-1-7-8-shaft-380-wt-30-286-3","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}