Electric Motor YE3-112M-4 IE3 High Efficiency 4kW 3-Phase AC Motor
IE3 Premium
4 kW / 5.5 HP
IP55 / IP65 Opt
100% Copper
Engineered to rigorous IEC 60034-1 standards with 100% pure copper windings, high ingress protection, and optimized energy efficiency for global OEM & industrial applications.
Building upon over five decades of electromechanical mastery originating from Elettrotecnica H. Orsatti and OME Motors (O.M.E. Motori Elettrici s.r.l. in Gussago, Brescia, Italy), our manufacturing infrastructure combines European precision engineering with industrial scalability. As a premier CE Certified IP65 Waterproof Electric Motors Manufacturer & Supplier, we specialize in high-spec electric drives engineered specifically for extreme operating conditions.
Full protection against total dust ingress and resistance to multi-directional high-pressure water jets. Designed with double-lip viton radial shaft seals, vacuum pressure impregnated (VPI) windings, and O-ring flange joints.
Utilizing high-grade Class H insulated copper windings with thermal protection (PTC thermistors / PT100 sensors). Delivers minimal I²R stator copper losses and superior electrical conductivity.
Fully compliant with European CE, IEC 60034, ATEX/IECEx for explosive atmospheres (ExdIIBT4 / ExdIICT4), NEMA MG-1 standards for North America, and GOST certifications for CIS regions.
In harsh industrial processing environments—such as marine deck machinery, food & beverage washdown lines, chemical processing, wastewater pumping, and mining operations—electric motors face aggressive moisture, corrosive chemicals, and conductive dust. Standard IP54 or basic IP55 motors frequently experience bearing contamination, stator insulation tracking breakdown, and corrosion failure.
First Digit (6): Complete protection against solid objects and total dust-tight enclosure.
Second Digit (5): Protection against water projected by a nozzle (6.3 mm) against enclosure from any direction without harmful effects.
| Specification Parameter | Standard IP55 Motor | CE Certified IP65 Motor | IP66 / Severe-Duty Washdown |
|---|---|---|---|
| Solid Protection | Dust Protected (Limited Ingress Allowed) | Dust-Tight (Zero Ingress Permitted) | Dust-Tight (Zero Ingress Permitted) |
| Water Jet Resistance | Splashing Water / Light Hose | Direct Low-Pressure Water Jets (6.3mm Nozzle) | High-Pressure Heavy Sea Spray Jets |
| Shaft Sealing System | Single Rubber V-Ring / Oil Seal | Double-Lip Viton Radial Seal + Gamma Ring | Mechanical Face Seal / Labyrinth Seals |
| Terminal Box Protection | Neoprene Flat Gasket | Poured Continuous Silicone Gasket + Cable Gland NPT/M | Double Sealed Epoxy Encapsulated Box |
| Winding Impregnation | Standard Dip & Bake Varnish | Vacuum Pressure Impregnation (VPI) Class H Resin | Full Stator Encapsulation / Potting Resin |
| Housing Material | Standard Aluminum / Steel Plate | Ductile Cast Iron (HT250) or AISI 316 Stainless Steel | Electropolished 316 SS / Marine Epoxy Coated |
As global industrial decarbonization mandates tighten across Europe, North America, and Asia-Pacific, industrial procurement managers are transitioning from initial purchase cost evaluation to Total Cost of Ownership (TCO) and Life Cycle Cost (LCC) frameworks. Electric motors account for roughly 70% of total electrical energy consumed in industrial processing plants. Over a typical 15-year motor lifespan, electricity costs represent 90%–95% of the total expenditures.
EU Eco-design Regulation (EU) 2019/1781 enforces strict minimum efficiency thresholds. Direct-drive Permanent Magnet Synchronous Motors (PMSM) eliminating rotor copper losses are replacing standard IE3 induction motors in heavy duty operations.
IP65 smart motors with built-in Bluetooth/LoRaWAN vibration and temperature sensor pockets allow real-time bearing condition monitoring and thermal degradation alert before catastrophic mechanical downtime occurs.
Decentralized drive automation is gaining massive traction. Compact IP65 motors with direct top-mounted frequency converters (VFDs) reduce shielded motor cable length, minimize electromagnetic interference (EMI), and eliminate cabinet space requirements.
Replacing an old 15kW IE2 motor running 8,000 hours/year with a 15kW IE4 Super Premium Efficiency IP65 Permanent Magnet Motor cuts power consumption by approximately 4.8%. At an average industrial electricity rate of $0.14/kWh, annual energy savings equal ~$1,612 USD per motor, delivering full capital expenditure amortization in under 11 months!
To achieve high efficiency, compact frame sizes, and waterproof durability, modern electric motor design relies heavily on advanced metallurgy, insulation chemistry, and precision manufacturing.
Stator and rotor laminations are punched from premium non-oriented electrical steel sheets (e.g., 50WW470 or 35WW300 grade), greatly reducing hysteresis losses and magnetic eddy currents under high frequency PWM inverter supplies.
For VFD-driven electric motors operating above 55kW, stray high-frequency shaft voltages can trigger electrical bearing fluting corrosion. We integrate hybrid ceramic bearings or insulated end-shields to block circulating shaft currents.
Engineering flameproof enclosures (Ex d / Ex db) that simultaneously fulfill strict IP65 waterproof ingress criteria requires flame-path flame-arresting joint geometries with non-hardening synthetic water barriers.
Technical answers addressing buyer intent, installation parameters, compliance, and custom OEM manufacturing.
Compliant IP65 electric motors undergo rigorous laboratory validation according to EN 60529 / IEC 60529 standards. First, the motor is placed in a vacuum-assisted dust chamber with circulating talcum powder for 8 hours to prove total zero-dust penetration (First digit 6). Next, a 6.3mm water nozzle delivers a continuous 12.5 L/min water jet at a pressure of 30 kPa from a 3-meter distance for at least 3 minutes (Second digit 5). Post-test dielectric voltage breakdown tests verify zero moisture tracking into the winding insulation.
Yes. All our IP65 electric motors feature Class H enamel copper wire and Vacuum Pressure Impregnation (VPI) phase insulation rated to withstand high dv/dt voltage spikes generated by modern IGBT inverters. For 400V/690V VFD applications, we recommend ordering motors equipped with reinforced Class F/H inverter-duty insulation systems and insulated bearings to eliminate bearing fluting caused by common-mode voltages.
An IP55 motor protects against dust ingress (not dust tight) and low-pressure water splashes. An IP65 motor is completely dust-tight (zero dust ingress) and withstands direct low-pressure water jets from all angles—making it ideal for general washdown and outdoor industrial use. An IP66 motor is designed for heavy marine sea-waves and high-pressure water jets (100 kPa pressure at 100 L/min).
We provide all standard IEC and NEMA mechanical mounting types: B3 (foot-mounted), B5 (large flange mounted), B14 (small flange), and B35 (combined foot and flange). For North American OEM equipment, we offer NEMA standard frame sizes (e.g., 143T, 145T, 182T, 215T) with C-face or D-flange configurations, equipped with NPT threaded conduit entry holes.
An IE4 PMSM utilizes high-coercivity NdFeB (Neodymium-Iron-Boron) permanent magnets on its rotor. Unlike AC induction motors, which experience rotor electrical current losses (I²R losses), PMSM rotors turn synchronously with the stator magnetic field with zero rotor slip. This yields 3%–6% higher energy efficiency across a wide speed range, significantly smaller frame dimensions, and lower operating heat rise.
We supply customized electric motor solutions engineered for extreme ambient temperatures ranging from -40°C (-40°F) up to +60°C (+140°F). Options include AISI 316L stainless steel shafts, internal space heaters to eliminate condensation during idle cycles, SPM vibration testing nipples, PT100 bearing/winding temperature sensors, and C5-M marine epoxy paint systems.
Consult with our senior electromechanical engineering team to receive customized CAD drawings, full technical datasheets, and direct factory pricing for your project.
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