WEG Strategic Partner Distributor
WEG BS DWB400D70 - RELEASE UNDERVOLTAGE BS DWB400 D70
WEG

BS DWB400D70

Alternate Item Number: 12687480

UPC: 7909158563609

Contact for Pricing

Overview

The **WEG BS DWB400D70 Release Undervoltage Device** is a critical component in industrial motor control and protection systems, designed to enhance operational safety and reliability. Manufactured by WEG, a global leader in electric motor and drive technology, this device ensures compliance with stringent safety standards while providing robust protection against undervoltage conditions that could compromise equipment integrity or pose operational risks. Undervoltage conditions—where the supply voltage drops below acceptable levels—can lead to motor overheating, reduced performance, or even catastrophic failure. The **BS DWB400D70** mitigates these risks by automatically disconnecting the circuit when undervoltage is detected, preventing damage to motors, transformers, and other sensitive equipment. This release device is particularly vital in applications where consistent power quality is non-negotiable, such as in manufacturing plants, water treatment facilities, HVAC systems, and mining operations. Key features of the **WEG BS DWB400D70** include: - **Automatic Trip Mechanism**: Instantly interrupts power flow during undervoltage events to protect downstream equipment. - **High Reliability**: Engineered for durability in harsh industrial environments, with robust construction to withstand vibration, dust, and temperature fluctuations. - **Compatibility**: Designed to integrate seamlessly with WEG motor control centers (MCCs) and other industrial switchgear, ensuring plug-and-play functionality. - **Compliance**: Meets international safety standards, including IEC 60947-2 and UL 489, for use in global markets. - **Easy Installation**: Compact design allows for straightforward mounting in control panels or distribution boards, reducing downtime during setup. The **BS DWB400D70** is part of WEG’s comprehensive portfolio of motor protection devices, which are trusted by industries worldwide for their precision engineering and long-term performance. Professionals in electrical engineering, maintenance, and plant operations rely on WEG’s solutions to safeguard critical infrastructure, reduce unplanned downtime, and extend the lifespan of expensive machinery. Whether deployed in new installations or as part of retrofitting projects, this release undervoltage device delivers uncompromising protection and peace of mind. For engineers and procurement specialists, selecting the right protection device involves balancing technical specifications with application-specific requirements. The **WEG BS DWB400D70** excels in scenarios where voltage stability is paramount, such as: - **Motor Control Centers (MCCs)**: Protecting variable frequency drives (VFDs) and soft starters from undervoltage-induced faults. - **Distribution Panels**: Safeguarding branch circuits in industrial facilities against power quality issues. - **HVAC Systems**: Ensuring uninterrupted operation of compressors and fans in commercial buildings. - **Renewable Energy Systems**: Supporting grid stability in solar or wind power installations where voltage fluctuations are common. - **Mining and Oil & Gas**: Providing fail-safe protection in remote or hazardous locations where equipment reliability is critical. WEG’s reputation for innovation and quality is underscored by decades of experience in industrial electrification. The company’s products are backed by a global service network, technical support, and a commitment to sustainability—aligning with modern industrial demands for efficiency and resilience. By integrating the **BS DWB400D70** into your system, you’re not just adding a component; you’re investing in a solution that prioritizes safety, longevity, and operational excellence. For specifications, installation guidelines, or compatibility inquiries, consult WEG’s technical documentation or authorized distributors to ensure optimal performance in your specific application.
  • Automatic undervoltage protection for motors and industrial equipment
  • Integrates seamlessly with WEG motor control centers (MCCs)
  • Meets IEC 60947-2 and UL 489 safety standards
  • Robust construction for harsh industrial environments
  • Easy installation in control panels and distribution boards

Specifications

Series
BS DWB400
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
RELEASE UNDERVOLTAGE BS DWB400 D74

BS DWB400D74

RELEASE UNDERVOLTAGE BS DWB400 D74
RELEASE SHUNT TRIP BD DWB160-250 E27

BD DWB160-250 E27

RELEASE SHUNT TRIP BD DWB160-250 E27
RELEASE SHUNT TRIP BD DWB160-250 E26

BD DWB160-250 E26

RELEASE SHUNT TRIP BD DWB160-250 E26
RELEASE UNDERVOLTAGE BS DWB800-1000 C07

BS DWB800-1000C07

RELEASE UNDERVOLTAGE BS DWB800-1000 C07
RELEASE UNDERVOLTAGE BS DWB800-1000 C13

BS DWB800-1000C13

RELEASE UNDERVOLTAGE BS DWB800-1000 C13

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.