WEG UMBW-1D2-40 - MINI CIRCUIT BREAKER UMBW-1D2-40
WEG

UMBW-1D2-40

Alternate Item Number: 14361106

UPC: 7909492436713

Contact for Pricing

Overview

The WEG UMBW-1D2-40 Miniature Circuit Breaker (MCB) is a critical component for ensuring the safety and reliability of electrical systems in demanding industrial environments. Designed by WEG, a globally recognized leader in electrical equipment manufacturing, this MCB provides robust overcurrent protection, safeguarding both personnel and valuable equipment from the damaging effects of electrical faults. At its core, the UMBW-1D2-40 integrates advanced thermal and magnetic trip mechanisms. The thermal element responds to sustained overloads, gradually increasing in temperature and tripping the breaker when a predetermined threshold is reached. This is essential for protecting equipment from gradual degradation due to prolonged, slightly elevated current draws. Conversely, the magnetic element provides instantaneous tripping in response to severe short-circuit conditions, where current surges dramatically and can cause immediate catastrophic damage. This dual-action protection is fundamental for preventing equipment failure, reducing downtime, and mitigating the risk of electrical fires. Miniature circuit breakers like the UMBW-1D2-40 are specifically engineered for compact installations, making them ideal for use in distribution panels, control cabinets, and motor control centers where space is often at a premium. Their modular design allows for easy integration and replacement, simplifying maintenance and upgrades. The UMBW-1D2-40 is a testament to WEG's commitment to producing high-quality, dependable electrical protection devices that meet stringent industry standards. Key applications for the WEG UMBW-1D2-40 include: * **Motor Circuits:** Protecting electric motors from overloads and short circuits, ensuring their longevity and operational efficiency. * **Distribution Panels:** Serving as a primary or secondary protective device for branch circuits within industrial facilities. * **Industrial Power Systems:** Providing essential safety for various machinery and power distribution networks. * **Control Systems:** Safeguarding sensitive control circuitry from transient overcurrents. Selecting the appropriate circuit breaker involves careful consideration of the load's current rating, voltage, and potential fault current levels. The UMBW-1D2-40, with its reliable performance characteristics, offers peace of mind for engineers and maintenance professionals. WEG's reputation for quality and innovation in the electrical industry means that choosing their products, such as the UMBW-1D2-40, is a decision backed by decades of expertise and a commitment to electrical safety. This device is more than just a component; it's an integral part of a safe and efficient industrial operation.
  • WEG UMBW-1D2-40 Miniature Circuit Breaker (MCB)
  • Provides essential overcurrent protection for industrial applications
  • Combines thermal and magnetic trip mechanisms for overload and short-circuit protection
  • Compact design ideal for distribution panels and control cabinets
  • Ensures electrical safety, preventing equipment damage and electrical fires

Specifications

Package Weight (Imperial)
0.7 LB
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.
JB5-2 2 POLE JUMPER 5.2MM SPACING

1SNK905302R0000

JB5-2 2 POLE JUMPER 5.2MM SPACING
JB5-5 5 POLE JUMPER 5.2MM SPACING

1SNK905305R0000

JB5-5 5 POLE JUMPER 5.2MM SPACING
Ground Lug

DNGL

Ground Lug
ZCT,LZR-030(V),EMPR,EXP

76512124011

ZCT,LZR-030(V),EMPR,EXP
INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M

83411621001

INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M

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.