WEG UMBW-4D2-15 - MINI CIRCUIT BREAKER UMBW-4D2-15
WEG

UMBW-4D2-15

Alternate Item Number: 14363103

UPC: 7909492438090

Contact for Pricing

Overview

The WEG UMBW-4D2-15 is a high-performance miniature circuit breaker (MCB) engineered for robust and reliable electrical protection in demanding industrial environments. Designed to safeguard electrical circuits and sensitive equipment from damaging overcurrent conditions, this 2-pole breaker offers a critical layer of safety and operational continuity. Its compact design makes it an ideal solution for space-constrained applications, including distribution panels, motor control centers, and auxiliary power circuits. At its core, the UMBW-4D2-15 integrates advanced thermal and magnetic trip mechanisms. The thermal element provides protection against sustained overloads, which can occur due to gradual increases in current draw or minor equipment malfunctions. This feature prevents gradual overheating of conductors and connected devices, significantly reducing the risk of insulation breakdown and fire. Simultaneously, the magnetic trip mechanism offers instantaneous response to severe short-circuit events. These sudden, high-magnitude current surges can cause catastrophic damage to equipment and pose immediate safety hazards. The rapid disconnection of power by the magnetic trip ensures that fault energy is minimized, thereby protecting downstream components and personnel. WEG, a globally recognized leader in electrical equipment manufacturing, brings its extensive expertise and commitment to quality to the UMBW-4D2-15. This dedication ensures that each breaker meets stringent industry standards for performance, durability, and safety. The UMBW-4D2-15 is a testament to WEG's focus on delivering dependable solutions for critical power applications. Its construction prioritizes longevity and consistent operation, even under challenging conditions such as fluctuating temperatures, vibration, and exposure to industrial contaminants. Key benefits and features of the WEG UMBW-4D2-15 include: * **Dual-Pole Protection:** Offers simultaneous interruption of both live conductors, enhancing safety and compliance for specific circuit configurations. * **Compact Form Factor:** The miniature design conserves valuable panel space, facilitating easier installation and denser electrical layouts. * **Thermal-Magnetic Tripping:** Provides comprehensive overcurrent protection against both overloads and short circuits. * **Reliable WEG Manufacturing:** Backed by the reputation of a trusted global electrical solutions provider. * **Enhanced Safety:** Prevents equipment damage, reduces downtime, and mitigates the risk of electrical fires. This circuit breaker is an indispensable component in a wide array of industrial sectors, including manufacturing plants, processing facilities, water treatment operations, and commercial buildings. It is commonly specified for protecting motor circuits, lighting circuits, control systems, and general power distribution. Proper selection and installation of the WEG UMBW-4D2-15, in accordance with electrical codes and manufacturer guidelines, are paramount to ensuring optimal performance and safety. Professionals rely on MCBs like the UMBW-4D2-15 for their straightforward installation, clear operational status indication, and the peace of mind that comes with robust electrical system protection.
  • WEG UMBW-4D2-15 Miniature Circuit Breaker
  • 2-Pole Configuration for comprehensive circuit interruption
  • Designed for reliable industrial overcurrent and short-circuit protection
  • Integrates thermal and magnetic trip mechanisms for dual-action safety
  • Compact design ideal for space-constrained electrical panels and systems

Specifications

Current Rating
15 A
Poles
2
Series
UMBW
Package Weight (Imperial)
0.7 LB
Ground Lug

DNGL

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

83411621001

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

76512124011

ZCT,LZR-030(V),EMPR,EXP
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
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.

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.