WEG E05536EP3YAX250SMF3W - MOTOR 55kW 2P 250S/M WFF2
WEG

E05536EP3YAX250SMF3W

UPC: 7909018881140

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Overview

The WEG 55kW 2P 250S/M WFF2 explosion-proof motor (SKU: E05536EP3YAX250SMF3W) is a premium industrial motor engineered for hazardous environments where flammable gases, vapors, or combustible dusts are present. Designed to meet NEC Article 500 requirements for classified locations, this motor delivers uncompromising safety without sacrificing performance. Built by WEG, a global leader in industrial electric motors with over 70 years of expertise, this 55kW (75 HP) two-pole motor is optimized for continuous operation in the most demanding applications, ensuring reliability, efficiency, and compliance with international safety standards. **Key Features and Construction:** The WEG 55kW explosion-proof motor features a robust WFF2 enclosure, engineered to contain any internal ignition sources and prevent the propagation of flames to the external atmosphere. This design is critical in industries such as oil & gas, chemical processing, mining, and grain handling, where explosive atmospheres are common. The motor’s construction includes high-grade cast iron end shields, corrosion-resistant coatings, and precision-balanced rotors, ensuring durability even in harsh, corrosive, or abrasive environments. WEG’s proprietary insulation system (WEG Premium) provides enhanced thermal stability and dielectric strength, extending service life and reducing maintenance costs. **Performance and Efficiency:** With a 2-pole design (3000 RPM at 50Hz), this motor delivers high torque and consistent speed, ideal for applications requiring rapid acceleration and sustained operation. The motor is rated for continuous duty (S1) and is available in both 50Hz and 60Hz configurations, making it versatile for global industrial use. WEG motors are designed to exceed IE3 efficiency standards, reducing energy consumption and operational costs while minimizing carbon footprint—a key consideration for facilities pursuing sustainability certifications. Thermal protection is integrated via PTC thermistors or PT100 sensors, enabling proactive monitoring and preventing overheating in critical processes. **Typical Applications:** This explosion-proof motor is purpose-built for heavy-duty industrial equipment operating in hazardous locations. Common applications include: - **Pumps:** Centrifugal, submersible, and chemical pumps in refineries, water treatment plants, and wastewater facilities. - **Fans and Blowers:** Ventilation systems in mines, chemical plants, and grain silos where dust or gas accumulation poses a risk. - **Conveyors:** Material handling systems in mining, cement, and bulk material processing. - **Compressors:** Air and gas compressors in petrochemical and natural gas processing. - **Machinery Drives:** Agitators, mixers, and mills in chemical, pharmaceutical, and food processing industries. **Industry Compliance and Safety:** The WEG 55kW explosion-proof motor is certified for use in Class I, Division 1 and 2; Class II, Division 1 and 2; and Class III hazardous locations, as defined by NEC Article 500. It also meets international standards such as ATEX, IECEx, and UL/CSA, ensuring seamless integration into global projects. The motor’s explosion-proof design is validated through rigorous testing, including flame path integrity, pressure piling resistance, and ingress protection (IP66/IP65), guaranteeing protection against dust and water ingress. **Installation and Maintenance:** Professionals select WEG motors for their ease of installation and long-term reliability. The 250S/M frame size is compatible with standard NEMA and IEC mounting configurations, simplifying retrofits and replacements. WEG provides comprehensive technical documentation, including dimensional drawings, wiring diagrams, and installation guides, to streamline commissioning. Maintenance is minimized thanks to sealed bearings with extended grease life and a modular design that allows for quick part replacement. For facilities operating in remote or high-risk areas, WEG’s global service network offers on-site support, vibration analysis, and predictive maintenance programs to maximize uptime. **Why Choose WEG?** WEG is a trusted name in industrial motors, with a reputation for innovation, quality, and customer-centric solutions. The company’s motors are used in over 100 countries, powering critical infrastructure in energy, mining, water, and manufacturing sectors. WEG’s commitment to research and development ensures that its explosion-proof motors incorporate the latest advancements in materials science, electromagnetic design, and safety engineering. By choosing the WEG 55kW 2P 250S/M WFF2, engineers and facility managers gain a motor that not only meets regulatory requirements but also delivers superior performance, energy efficiency, and operational longevity—making it a cost-effective investment for hazardous-area applications.
  • Explosion-proof WFF2 enclosure for Class I/II/III hazardous locations
  • 55kW (75 HP) 2-pole motor with 3000 RPM (50Hz) for high-torque applications
  • Meets NEC Article 500, ATEX, IECEx, and UL/CSA certifications
  • Premium insulation and thermal protection for extended service life
  • Compatible with pumps, fans, conveyors, compressors, and machinery drives

Specifications

Frequency
50Hz/60Hz
Ip Rating
IP66/IP65
Poles
2P
Size
250S/M
Package Weight (Imperial)
1127.683 LB
KIT BEARING SEALING RING W3 SEAL LABYRIN

W3-SEAL-6314

KIT BEARING SEALING RING W3 SEAL LABYRIN
SPARE PARTS BLUFFT ELECTRONIC STARTER

SSR30039L

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Frequently Asked Questions about WEG

What certifications and standards do WEG products comply with?

WEG products meet extensive international standards across multiple critical categories, including safety, electromagnetic compatibility (EMC), functional safety, and regulatory compliance. Key certifications include UL, cUL, CE, TÜV Rheinland, and compliance with international standards such as EN 61800 series, IEC 61508, ISO 13849-1, and directives like Low Voltage (2014/35/EU), EMC (2014/30/EU), and RoHS. Their products are certified for safe operation in various industrial environments, with specific standards covering electrical safety, thermal performance, electromagnetic immunity, and environmental protection.

What is WEG's warranty policy?

WEG offers an 18-month standard warranty for automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Repairs must be performed by authorized WEG service, and the warranty is limited to the replacement or repair of the product itself, excluding consequential damages. Extended warranty options are available, including purchasing additional coverage at 2.5% of the product's selling price per year, up to 4 additional years.

What industries and applications are WEG products used for?

WEG products are extensively used across multiple industrial sectors, including packaging equipment, material handling, food processing, pumps, medical/lab equipment, door/gate openers, office machinery, and lawn/garden applications. Their versatile DC motors and variable frequency drives (VFDs) are designed for general industrial use, with solutions ranging from off-the-shelf products to custom OEM designs that meet UL/CSA standards for diverse manufacturing and processing environments.

What technical support does WEG offer?

WEG offers comprehensive technical support through multiple channels, including a dedicated Automation Service Department accessible via toll-free phone (1-877-934-3748) and email ([email protected]). They maintain a global network of accredited service centers worldwide, which customers can locate on their website. Additionally, WEG provides warranty support and technical assistance for their industrial automation products, with pre-approval required for warranty repairs.

What are the key features of WEG products?

WEG products feature advanced industrial automation technologies with key characteristics including high performance, flexibility, and connectivity. Their flagship CFW900 Variable Speed Drive demonstrates core product strengths: intelligent thermal management, built-in safety functions, IoT readiness, advanced energy saving capabilities, and comprehensive communication protocols. WEG drives offer robust performance with features like 150% overload capacity, modern graphic HMI, plug-and-play expansion modules, and compatibility across multiple industrial segments including food and beverage, pulp and paper, and manufacturing.

What communication protocols do WEG products support?

WEG products support multiple industrial communication protocols across their product lines, including EtherNet/IP, Modbus-TCP, Modbus-RTU, CANopen, and optional protocols like Profibus-DP and DeviceNet. Specifically, the PLC500 offers 2x Gigabit Ethernet Ports, 1x CAN Port, and 1x RS485 port, enabling seamless integration with major industrial communication networks.

What environmental ratings do WEG products have?

WEG products feature multiple environmental ratings and protection classes. They offer Protection Class 3C2 as a standard coating and Protection Class 3C3 as an optional extra coating, both compliant with IEC 60721-3-3. Environmental specifications include air relative humidity from 5% to 95% non-condensing, altitude ratings up to 1,000m standard (with current derating above that), and Pollution Degree 2 classification with non-conductive pollution requirements.

What accessories are available for WEG products?

WEG offers a comprehensive range of accessories across multiple product lines. For variable frequency drives like the CFW900, accessories include I/O expansion modules, communication modules, encoder modules, temperature transducer modules, relay output modules, and HMI accessories. These accessories expand communication capabilities, input/output functions, and application flexibility. Most accessories are interchangeable between drive frames and can be installed in backplane slots, with communication network accessories limited to one per variable speed drive.

What are the main product lines offered by WEG?

WEG offers a comprehensive range of industrial automation products, including variable frequency drives (CFW series like CFW100, CFW300, CFW500), soft starters (SSW series including SSW05, SSW07, SSW900), and the innovative Motion Fleet Management (MFM) system for predictive maintenance and asset monitoring. Their product lines are designed to support industrial automation needs across various sectors, providing solutions for motor control, fleet management, and operational efficiency.

How are WEG products typically installed?

WEG products are typically installed with careful attention to mounting specifications, protection ratings, and airflow requirements. For variable speed drives like the CFW900, installation methods include surface mounting, flange mounting, and side-by-side configurations with specific clearance guidelines. Installers must follow precise dimensional requirements for each product frame size, ensuring proper ventilation and electrical connections.