WEG MT-031 - DC MOTOR 0.25HP 90V 4P
WEG

MT-031

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Overview

The WEG MT-031 DC Motor is a high-performance, industrial-grade solution engineered for precision speed control and robust torque delivery in demanding applications. As part of WEG’s renowned line of integral horsepower DC motors, the MT-031 combines reliability, efficiency, and durability to meet the rigorous demands of modern industrial operations. With a rated output of 0.25 horsepower and an operating voltage of 90V, this 4-pole motor is designed to excel in variable speed applications where accurate speed regulation is critical. Whether powering pumps, fans, conveyors, compressors, or machinery drives, the MT-031 delivers consistent performance under fluctuating load conditions, making it a trusted choice for engineers and maintenance professionals across multiple industries. WEG’s DC motors, including the MT-031, are built on decades of expertise in electric motor technology. The MT-031 leverages premium-grade materials and precision manufacturing processes to ensure long service life and minimal downtime. Its high starting torque capability enables rapid acceleration and smooth operation even in applications with heavy initial loads, such as material handling systems or industrial compressors. The motor’s design supports simple, cost-effective control methods using variable frequency drives (VFDs) or traditional DC drive systems, providing flexibility in system integration and reducing overall operational costs. Industries that benefit from the WEG MT-031 include manufacturing, water and wastewater treatment, HVAC systems, food processing, and automotive production. In water treatment plants, for example, the MT-031 can drive centrifugal pumps with precise flow control, optimizing energy consumption and reducing wear on system components. In HVAC applications, the motor’s ability to maintain consistent speeds ensures efficient air handling and climate control, contributing to energy savings and improved indoor air quality. For conveyor systems in warehouses or production lines, the MT-031 offers reliable torque at low speeds, enhancing throughput while maintaining operational stability. Installation and maintenance of the WEG MT-031 are streamlined thanks to its robust construction and compatibility with standard mounting configurations. WEG provides comprehensive technical documentation, including wiring diagrams, dimensional specifications, and performance curves, to simplify integration into new or existing systems. The motor’s IP rating (where applicable) ensures protection against dust and moisture ingress, enhancing reliability in harsh or outdoor environments. Regular maintenance is minimal, typically involving routine inspections of brushes, bearings, and windings—components designed for longevity and easy replacement when necessary. Choosing WEG for DC motor applications means partnering with a global leader in electric motor solutions. WEG’s commitment to innovation, quality, and customer support is reflected in every MT-031 unit, backed by rigorous quality testing and compliance with international standards. With a strong presence in over 100 countries and a reputation for engineering excellence, WEG delivers motors that not only meet but exceed industry expectations. The MT-031 is more than a component—it’s a critical investment in operational efficiency, uptime, and long-term cost savings for industrial facilities of all sizes.
  • 0.25HP output with 90V operation for variable speed applications
  • 4-pole design delivers high starting torque and precise speed regulation
  • Ideal for pumps, fans, conveyors, compressors, and machinery drives
  • Built with premium materials and precision manufacturing for durability
  • Compatible with standard DC drive systems and VFDs for flexible control
  • Low maintenance design with robust construction for harsh environments
  • Backed by WEG’s global reputation for quality and reliability

Specifications

Poles
4P
Series
MT-031
Series
MT
Voltage Rating
90V
Package Weight (Imperial)
15 LB
DC MOTOR 1HP 90V 4P

MT-034AW

DC MOTOR 1HP 90V 4P

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.