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WEG BS DWB400C03 - RELEASE UNDERVOLTAGE BS DWB400 C03
WEG

BS DWB400C03

Alternate Item Number: 12687425

UPC: 7909158563685

Contact for Pricing

Overview

The WEG BS DWB400C03 Undervoltage Release is a critical component in modern industrial motor control and protection systems, designed to enhance electrical safety and equipment reliability. As part of WEG's renowned circuit breaker lineup, this undervoltage release mechanism automatically disconnects power when voltage drops below a preset threshold, preventing damage to sensitive industrial equipment, reducing downtime, and mitigating fire risks. Engineered for high-performance applications, the BS DWB400C03 is a trusted solution in motor circuits, distribution panels, and industrial power systems where consistent voltage levels are essential for operational integrity. Undervoltage releases like the WEG BS DWB400C03 are indispensable in industries such as manufacturing, mining, oil and gas, water treatment, and renewable energy, where electrical stability directly impacts productivity and safety. These devices are particularly valuable in motor-driven systems, where sudden voltage drops can cause equipment stalling, overheating, or mechanical stress. By integrating the BS DWB400C03 into your electrical protection scheme, you ensure compliance with safety standards such as IEC 60947, while also benefiting from WEG’s decades of expertise in industrial electrical solutions. Key features of the WEG BS DWB400C03 include robust construction for harsh industrial environments, compatibility with WEG circuit breakers, and precise undervoltage detection to prevent nuisance tripping. The device is designed for seamless integration into existing motor control centers (MCCs) and switchgear, offering flexibility in installation and maintenance. WEG’s global reputation for quality and innovation ensures that the BS DWB400C03 delivers reliable performance, even in demanding applications where operational continuity is non-negotiable. Professionals in the electrical engineering and maintenance fields rely on WEG’s undervoltage releases for their durability, accuracy, and ease of use. Whether protecting a conveyor system in a steel mill, a pump in a water treatment facility, or a compressor in an oil refinery, the BS DWB400C03 provides the critical safety net needed to avoid catastrophic failures. With WEG’s extensive support network and technical documentation, selecting and installing the BS DWB400C03 is straightforward, ensuring long-term protection for your electrical infrastructure. Investing in the WEG BS DWB400C03 Undervoltage Release is a proactive step toward safeguarding your industrial operations. By preventing equipment damage from undervoltage conditions, this device not only enhances safety but also contributes to cost savings by reducing unplanned downtime and maintenance costs. Trust WEG, a leader in industrial electrical solutions, to deliver the reliability and performance your systems demand.
  • Automatic power disconnection during undervoltage conditions to prevent equipment damage
  • Compatible with WEG circuit breakers for seamless integration into industrial systems
  • Designed for harsh industrial environments with robust construction
  • Ensures compliance with IEC 60947 and other safety standards
  • Trusted solution for motor circuits, distribution panels, and industrial power systems

Specifications

Series
BS DWB
Package Weight (Imperial)
0.22 LB
ZCT,LZR-030(V),EMPR,EXP

76512124011

ZCT,LZR-030(V),EMPR,EXP
UNDERVOLTAGE RELEASE UVT-UBW1200-D96

UVT-UBW1200-D96

UNDERVOLTAGE RELEASE UVT-UBW1200-D96
MS116/132 SHUNT TRIP, 110V

AA1-110

MS116/132 SHUNT TRIP, 110V
AUXILIARY CONTACT AX-UBW2500

AX-UBW2500

AUXILIARY CONTACT AX-UBW2500
AUXILIARY CONTACT AX-UBW800

AX-UBW800

AUXILIARY CONTACT AX-UBW800
AUXILIARY CONTACT AX-UBW400

AX-UBW400

AUXILIARY CONTACT AX-UBW400
ROTARY HANDLE DHI-UBW225

DHI-UBW225

ROTARY HANDLE DHI-UBW225
AUXILIARY CONTACT AX-UBW250

AX-UBW250

AUXILIARY CONTACT AX-UBW250

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.