WEG three-phase motors for explosion-proof applications

WEG W22Xtb, W22Xeb, W22Xec, W22Xdb electric motors: Maximum safety and efficiency for a wide range of potentially explosive atmospheres.

Certified safety for hazardous industrial environments

WEG explosion-proof three-phase motors are specifically designed for safe and reliable operation in environments where explosive atmospheres caused by gases, vapors or combustible dust may occur. These motors comply with the most stringent international safety standards and are certified according to ATEX and IECEx regulations, making them a trusted solution for critical industries worldwide.

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Product Range

WEG offers a comprehensive portfolio of explosion-proof three-phase motors tailored to a wide variety of industrial requirements:

• Explosion-proof motors for gas atmospheres (Ex d, Ex e)
• Motors for combustible dust environments (Ex t)
• High-efficiency motors IE2, IE3 and IE4
• Fixed-speed and variable-speed motor solutions
• Special designs for extreme temperatures and corrosive environments

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Technical Specifications

• Motor type: Three-phase induction motor
• Rated power: approx. 0.12 kW up to over 1,000 kW
• Supply voltage: IEC standard voltages (e.g. 230/400 V, 400/690 V)
• Frequency: 50 Hz / 60 Hz
• Efficiency class: IE2, IE3, IE4
• Insulation class: F or H
• Protection degree: IP55, IP65, IP66 (depending on configuration)
• Cooling system: IC411 or special cooling options
• Mounting arrangements: B3, B5, B35 and others
• Housing material: cast iron or steel, depending on application

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Classification and Certifications

The motors fully comply with international explosion protection standards:

• ATEX: Directive 2014/34/EU
• IECEx certification
• Ex markings for:
  • Zone 1 and Zone 2 (gas)
  • Zone 21 and Zone 22 (dust)
• Temperature classes: T1 – T6
• Gas groups: IIA, IIB, IIC

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Applications

WEG explosion-proof three-phase motors are ideal for applications where safety, reliability and process continuity are critical:

• Oil and gas industry
• Chemical and petrochemical plants
• Refineries and offshore platforms
• Pumping stations and compressors
• Pharmaceutical industry
• Grain handling and food processing
• Paint, coating and solvent manufacturing

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Detailed Overview

WEG explosion-proof three-phase motors combine advanced engineering with a robust mechanical design to prevent ignition of explosive atmospheres caused by sparks or excessive surface temperatures. High-quality materials, reinforced enclosures and strict testing procedures ensure long service life and reduced maintenance costs.

Thanks to their high energy efficiency and compatibility with modern drive and control systems, these motors help optimize energy consumption and improve operational performance, even in the most demanding hazardous environments.