WEG W22 450S 355kW 4-Pole IE3 Motor

The WEG W22 450S 355kW 4-Pole IE3 motor enters the range where medium-voltage alternatives become increasingly competitive, yet the W22 series maintains compelling advantages in standardization, availability, and protection system compatibility that favor LV selection for many applications. At 355kW on 380V, the full-load current reaches approximately 630A, requiring careful cable and busbar selection but remaining within the capability of standard LV switchgear used in major Saudi industrial facilities.

At the Ras Al-Khair industrial city—home to Ma'aden's aluminum smelter, phosphate processing complex, and port facility—large pump and fan motors in the 355–450kW range are deployed extensively for raw material handling, process fluid circulation, and utility system operation. The W22 450S 355kW 4P represents WEG's technical solution optimized for this power level, incorporating all the advanced features of the W22 series with additional reinforcement appropriate for the demanding Saudi industrial environment.

The W22 450S frame introduces a new physical scale where motor transportation and installation logistics become significant project management considerations. At approximately 2800kg, the motor requires heavy-lift equipment for installation, and shipping logistics from WEG's manufacturing facilities in Brazil or Germany require early procurement planning. Razz Middle East maintains close coordination with WEG's global supply chain team to ensure on-time delivery for project-critical motor orders, and our Riyadh-based project team provides installation planning support including rigging plans and foundation design coordination.

IE3 efficiency for the W22 450S 355kW 4P motor reaches 96.4%, delivering annual energy savings of approximately 15,000 kWh compared to IE2 at equivalent loading profiles. Over a 20-year operational lifetime, this efficiency advantage represents substantial financial value at Saudi industrial electricity tariff rates. WEG provides official efficiency test certificates from accredited laboratories as standard documentation, supporting lifecycle cost analysis required for Saudi Aramco and SABIC capital project approvals.

The motor's terminal box accepts connections up to 4x300mm2 cables per phase for the high current requirements at LV operation. For facilities preferring to minimize LV distribution losses, WEG can supply the W22 450S in optional 690V configuration, reducing full-load current to approximately 360A while maintaining identical mechanical configuration. The 690V option is increasingly popular in new Saudi industrial facilities as it reduces copper content in cable runs and associated I²R distribution losses.

Commissioning services for W22 450S motors are available through Razz Middle East's technical services division, including motor installation inspection, coupling alignment verification to 0.05mm tolerance, insulation resistance and polarization index testing, no-load current measurement, vibration baseline recording, and bearing temperature run-in monitoring. These services ensure motors enter service in optimal condition and establish baseline data for ongoing condition-based maintenance programs.