WEG Strategic Partner Distributor
WEG BFC4-31 - CONTACT BLOCK BU BFC4-31

WEG BFC4-31 CONTACT BLOCK BU BFC4-31

Alternate Item Number: 12499366

UPC: 7909158165995

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The WEG BFC4-31 Contact Block is a high-performance auxiliary component engineered for industrial electrical systems requiring precise and reliable switching operations. Designed as part of WEG’s trusted BFC series, this contact block provides essential auxiliary contacts for control circuits, enabling seamless integration with contactors, relays, and motor starters. Built to withstand the rigors of industrial environments, the BFC4-31 ensures consistent performance across millions of switching cycles, making it a critical element in automation, machinery control, and power distribution systems. WEG, a global leader in electric motor and power solutions, has engineered the BFC4-31 with a focus on durability, efficiency, and compatibility. The contact block features robust construction with arc suppression capabilities, reducing wear on contacts and minimizing downtime in critical applications. Its compact design allows for easy installation in tight enclosures, while the modular configuration ensures flexibility for various control circuit configurations. Professionals in industries such as manufacturing, HVAC, water treatment, and material handling rely on WEG’s auxiliary contact blocks for their proven reliability and long service life. Selecting the right contact block for an industrial application requires careful consideration of electrical ratings, mechanical durability, and compatibility with existing systems. The BFC4-31 is rated for standard industrial voltages and currents, making it suitable for use in motor starters, lighting controls, and automated machinery. Its auxiliary contacts provide signaling and interlocking functions, enhancing system safety and operational control. Installation is straightforward, with clear labeling and standardized mounting options that align with industry best practices. WEG’s reputation for innovation and quality extends across its entire product portfolio, including the BFC4-31. The company’s commitment to research and development ensures that its contact blocks meet stringent performance standards, while rigorous testing guarantees reliability in demanding conditions. Whether used in new installations or as a replacement in existing systems, the WEG BFC4-31 Contact Block delivers the performance and peace of mind that industrial professionals demand. Trusted by engineers and technicians worldwide, WEG continues to set the benchmark for auxiliary contact solutions in modern industrial applications.
  • Auxiliary contact block for industrial control circuits
  • Arc suppression for extended contact life
  • Modular design for flexible installation
  • Compatible with WEG contactors and relays
  • Rugged construction for harsh environments

Specifications

Series
BFC
Package Weight (Imperial)
0.097 LB
COIL BL URMP V37

URMP V37

COIL BL URMP V37
CONTACT BLOCK BU BFCA-04

BFCA-04

CONTACT BLOCK BU BFCA-04
CONTACT BLOCK BU BFC025-20

BFC025-20

CONTACT BLOCK BU BFC025-20
CONTACT BLOCK BU BFC0-20

BFC0-20

CONTACT BLOCK BU BFC0-20
CONTACT BLOCK BU BFC4-40

BFC4-40

CONTACT BLOCK BU BFC4-40
TIMER BLOCK BU TDC0-U030S-E09

TDC0-U030S-E09

TIMER BLOCK BU TDC0-U030S-E09
TIMER BLOCK BU TDC0-U010S-E09

TDC0-U010S-E09

TIMER BLOCK BU TDC0-U010S-E09
TIMER BLOCK BU TDC0-U030S-E04

TDC0-U030S-E04

TIMER BLOCK BU TDC0-U030S-E04

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.