WEG W22 IE3 5.5kW 4P 132S Three-Phase Motor

Overview

The WEG W22 IE3 5.5kW is a three-phase, totally enclosed fan-cooled (TEFC) induction motor from WEG’s globally specified W22 platform, built to IE3 premium efficiency in a 4-pole, 132S cast-iron frame for 230/400V 50Hz operation. Designed for continuous-duty service driving pumps, fans, compressors, and general industrial machinery, the W22 combines a rugged cast-iron enclosure with WEG’s optimized rotor and stator design to deliver high efficiency, low vibration, and reliable startup torque across a wide range of load profiles.

As the official authorized partner and exclusive regional representative for WEG, Seven Star LLC proudly supplies the W22 IE3 motor range to plant engineers, EPC contractors, and equipment OEMs across Oman and the GCC. Every W22 unit shipped through Seven Star LLC is genuine WEG stock, backed by manufacturer warranty and technical support for projects spanning oil and gas, water treatment, and manufacturing facilities throughout the Sultanate.

Operating Principle of the WEG W22 IE3 5.5kW

The WEG W22 IE3 5.5kW operates on the standard three-phase induction principle: current in the stator windings generates a rotating magnetic field that induces current in the rotor bars, producing torque that drives the rotor and connected load. WEG’s IE3 premium-efficiency design reduces electrical and mechanical losses relative to standard-efficiency motors through optimized lamination steel, reduced air-gap tolerances, and copper or aluminum rotor bar geometry tuned for minimal slip loss.

This efficiency improvement translates directly into lower operating temperatures and reduced energy consumption over the motor’s service life, particularly significant for continuous-duty applications such as pump and fan drives that run thousands of hours annually. The TEFC enclosure design (IC411 cooling method) uses an external shaft-mounted fan to force air across ribbed housing fins, keeping winding temperatures within Class F insulation limits without exposing internal windings to dust, moisture, or chemical contaminants common in industrial process areas.

Engineering Design of the WEG W22 IE3 5.5kW

Physically, the W22 IE3 5.5kW uses a cast-iron 132S frame with a B3T foot-mounted configuration, providing the structural rigidity needed for belt-driven or direct-coupled applications subject to radial and axial loading. The terminal box is positioned for straightforward cable entry and is rated to match the motor’s IP55 ingress protection, keeping the connection compartment sealed against dust and water jets during routine washdown or outdoor exposure.

WEG manufactures the W22 with dual-voltage windings (here 230/400V) to simplify specification across regional power systems, and the motor’s insulated bearing arrangement and severe-duty paint system extend service life in humid, saline, or dusty GCC industrial environments. Standard eyebolts and a keyed shaft extension are provided for safe handling and straightforward mechanical coupling to pumps, fans, or gearboxes during installation.

Key Features

The WEG W22 IE3 5.5kW three-phase motor offers the following features for industrial drive applications:

• 5.5kW output at 4-pole speed (1500rpm synchronous) in a 132S cast-iron frame.
• IE3 premium efficiency to IEC 60034-30-1, reducing energy consumption over continuous-duty service life.
• TEFC (IC411) enclosure design with IP55 ingress protection for dusty and washdown environments.
• Dual-voltage 230/400V windings for flexible specification across regional power systems.
• Cast-iron B3T foot-mounted frame providing structural rigidity for belt or direct-coupled loads.
• Class F insulation system with Class B temperature rise for extended thermal margin.
• Severe-duty paint system and insulated bearings for humid, saline, and dusty industrial conditions.
• Compatible with WEG CFW-series and most third-party variable frequency drives for speed control.

Industrial Applications

The W22 IE3 5.5kW is specified across oil and gas facilities, RO desalination plants, and water treatment works in Oman and the GCC, driving centrifugal pumps, cooling tower fans, and compressor auxiliaries that operate continuously under variable load. Its IE3 efficiency rating helps facility engineers meet regional energy-efficiency mandates while keeping motor replacement and maintenance costs predictable across large installed motor populations.

As the officially authorized partner for WEG, Seven Star LLC distributes the W22 range to EPC contractors and plant operators working on projects throughout the Sohar and Salalah economic zones, as well as commercial HVAC and district cooling installations in Muscat. Facility engineers maintaining pump stations and process plants rely on WEG’s dual-voltage flexibility and wide frame-size availability through Seven Star LLC’s regional stock.

Technical Specifications

Key technical specifications for the WEG W22 IE3 5.5kW three-phase motor are summarized below.

Plant engineers replacing standard-efficiency motors with the WEG W22 IE3 5.5kW typically see a measurable reduction in monthly energy consumption on continuously running pump and fan loads, making the upgrade cost-effective within a modest payback period across GCC utility tariffs.

Request a Quote for WEG W22 IE3 5.5kW 4P 132S Three-Phase Motor

To request a formal quotation for the WEG W22 IE3 5.5kW three-phase motor, contact Seven Star LLC’s instrumentation and electrical division for current regional warehouse stock availability across Oman and the GCC. Technical datasheets are available on request for pump and fan system specification review. As the authorized partner for WEG in Oman and the GCC, Seven Star LLC provides genuine W22 motors with full manufacturer warranty, fast regional delivery, and dedicated technical support for plant engineers and contractors throughout the Sultanate.