WEG ESW-B50D39C-R71 - ENCLOSED STARTER ESW-B50D39C-R71
WEG

ESW-B50D39C-R71

Contact for Pricing

Overview

The WEG ESW-B50D39C-R71 Enclosed Starter is a robust and reliable solution engineered for comprehensive motor control in demanding industrial environments. This integrated unit combines essential components, including a high-performance WEG contactor and an adjustable thermal overload relay, all housed within a durable, protective enclosure. This design ensures safe operation, protects personnel from electrical hazards, and safeguards the motor against damaging overcurrent conditions. Motor starters are fundamental to the operation of electric motors across a vast spectrum of industries. They provide the critical functionality of initiating motor rotation, allowing for controlled stopping, and offering indispensable protection against overloads that can lead to premature failure and costly downtime. The WEG ESW-B50D39C-R71 is meticulously designed to meet these requirements, offering a complete, ready-to-install package that simplifies electrical panel design and reduces assembly time. Its enclosed nature provides a high degree of protection against environmental factors such as dust, moisture, and physical impact, making it suitable for a wide array of applications. Key benefits of the WEG ESW-B50D39C-R71 include enhanced safety through its enclosed design, reliable motor protection via the integrated overload relay, and simplified installation due to its all-in-one configuration. The adjustable nature of the overload relay allows for precise calibration to match the specific current requirements of the motor, further optimizing protection and preventing nuisance tripping. This makes it an ideal choice for applications such as: * Pumps and compressors in water treatment plants and manufacturing facilities. * Conveyor systems in logistics and material handling operations. * Fans and blowers in HVAC systems and industrial ventilation. * Machine tools and processing equipment in fabrication shops. * General industrial machinery requiring dependable motor starting and protection. WEG is a globally recognized leader in the manufacturing of electric motors, drives, and control equipment, renowned for its commitment to quality, innovation, and performance. Choosing a WEG motor starter like the ESW-B50D39C-R71 means investing in a product built to the highest standards, ensuring long-term reliability and operational efficiency. This specific model, with its SKU ESW-B50D39C-R71, represents a proven solution for professionals seeking dependable motor control and protection for their critical industrial assets. Its robust construction and integrated safety features make it an indispensable component for any industrial electrical system.
  • Integrated WEG Contactor and Thermal Overload Relay for complete motor control.
  • Durable, protective enclosure for enhanced safety and environmental resistance.
  • Adjustable overload relay for precise motor current calibration and protection.
  • Simplifies installation and reduces panel assembly time.
  • Ideal for pumps, conveyors, fans, and general industrial machinery.

Specifications

Package Weight (Imperial)
0 LB
GMD-16M DC240V 3W 1b EXP (GMD16M-30-01-UD-3W-S-E)

1270040900

GMD-16M DC240V 3W 1b EXP (GMD16M-30-01-UD-3W-S-E)
MT-63 34A 3D SCREW EXP (MT63-3D-34-S-E)

1311001000

MT-63 34A 3D SCREW EXP (MT63-3D-34-S-E)
Ground Lug

DNGL

Ground Lug
CONTACT BLOCK BU BLB-02

BLB-02

CONTACT BLOCK BU BLB-02
CONTACT BLOCK BU BFB-40

BFB-40

CONTACT BLOCK BU BFB-40
One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

LCMA6-8-C

One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

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.