WEG DWB400JH350-3DA - CIRCUIT BREAKER DWB400JH350-3DA
WEG

DWB400JH350-3DA

Alternate Item Number: 13303339

UPC: 7909265842888

Contact for Pricing

Overview

The WEG DWB400JH350-3DA is a robust and reliable 3-pole circuit breaker engineered for critical industrial electrical protection and control systems. Designed to safeguard valuable equipment and personnel, this breaker offers essential overcurrent protection, automatically disconnecting power in the event of fault conditions such as overloads or short circuits. This proactive safety measure is paramount in preventing catastrophic equipment damage, mitigating the risk of electrical fires, and ensuring operational continuity in demanding industrial environments. As a key component within WEG's extensive line of electrical distribution and protection solutions, the DWB400JH350-3DA series circuit breaker is built to meet stringent industry standards. Its 350 Ampere current rating makes it suitable for a wide range of applications, including the protection of motor circuits, main distribution panels, and high-capacity industrial power systems. The 3-pole configuration is standard for three-phase power distribution, ensuring comprehensive protection across all conductors. Professionals in electrical engineering, plant maintenance, and system integration rely on circuit breakers like the WEG DWB400JH350-3DA for their dependable performance and ease of integration. The selection of an appropriate circuit breaker is a critical design consideration, influenced by factors such as the protected circuit's continuous current, potential fault current levels, and specific application requirements. WEG, a globally recognized manufacturer of electric motors, drives, and electrical equipment, brings its legacy of quality and innovation to its circuit breaker offerings, providing peace of mind for critical infrastructure. Key features and benefits of the WEG DWB400JH350-3DA include: * **Superior Overcurrent Protection:** Effectively detects and interrupts overloads and short circuits, safeguarding downstream equipment. * **Robust Construction:** Built with durable materials to withstand harsh industrial environments and ensure long operational life. * **Three-Phase Capability:** The 3-pole design is ideal for standard three-phase power distribution systems. * **High Current Rating:** With a 350A rating, it is suitable for heavy-duty industrial applications. * **Enhanced Safety:** Prevents electrical hazards, reduces downtime, and protects against costly equipment failures. Applications for the DWB400JH350-3DA are diverse, spanning manufacturing plants, processing facilities, data centers, and any setting where reliable electrical protection is non-negotiable. Its integration into motor control centers (MCCs), power distribution units (PDUs), and main switchboards ensures that electrical systems remain safe and operational. Choosing the right circuit breaker is fundamental to electrical system design and maintenance, and the WEG DWB400JH350-3DA represents a trusted solution for demanding industrial needs.
  • WEG DWB400JH350-3DA 3-Pole Circuit Breaker
  • 350 Ampere Current Rating
  • Designed for Industrial Electrical Protection
  • Essential for Overcurrent and Short-Circuit Safeguarding
  • Reliable WEG Manufacturer Quality

Specifications

Package Weight (Imperial)
8.481 LB

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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.