WEG UMBW-4B1-7 - MINI CIRCUIT BREAKER UMBW-4B1-7
WEG

UMBW-4B1-7

Alternate Item Number: 14360489

UPC: 7909492436287

Contact for Pricing

Overview

The WEG UMBW-4B1-7 Mini Circuit Breaker is engineered to provide robust and reliable electrical protection for a wide array of industrial and commercial applications. As a critical component in safeguarding electrical systems, this circuit breaker is designed to swiftly and effectively interrupt current flow in the event of overloads or short circuits, thereby preventing damage to equipment and mitigating potential fire hazards. Manufactured by WEG, a globally recognized leader in electrical equipment, the UMBW-4B1-7 benefits from decades of innovation and a commitment to quality, ensuring dependable performance in demanding environments. Part of the esteemed UMBW series, this mini circuit breaker is built with advanced thermal-magnetic trip mechanisms. These mechanisms offer precise and sensitive detection of fault conditions. The thermal element responds to sustained overcurrents, typical of overloads, while the magnetic element reacts instantaneously to high fault currents, such as those caused by short circuits. This dual-action protection ensures that the circuit breaker trips only when necessary, minimizing nuisance tripping while maximizing safety. Its compact footprint is a significant advantage, particularly in control panels and enclosures where space is at a premium. Despite its small size, the UMBW-4B1-7 does not compromise on performance or durability, making it an ideal solution for densely populated electrical assemblies. Key features and benefits of the WEG UMBW-4B1-7 include: * **Reliable Overload and Short-Circuit Protection:** Essential for preventing equipment damage and ensuring operational continuity. * **Advanced Thermal-Magnetic Trip Mechanism:** Delivers precise and responsive fault detection. * **Compact and Space-Saving Design:** Facilitates installation in confined electrical enclosures. * **Durable Construction:** Engineered for longevity in industrial settings. * **WEG Quality and Reliability:** Backed by a trusted manufacturer known for high-performance electrical solutions. This mini circuit breaker is suitable for a broad spectrum of industries, including manufacturing, automation, power distribution, and building services. Its versatility allows for integration into motor control circuits, lighting circuits, and general power distribution panels. Professionals selecting circuit breakers for industrial applications prioritize safety, reliability, and compliance with electrical codes. The WEG UMBW-4B1-7 meets these demands, offering peace of mind to engineers and maintenance personnel. Proper installation, adhering to local electrical codes and manufacturer guidelines, is crucial for optimal performance and safety. The UMBW-4B1-7's robust design and precise tripping characteristics make it a dependable choice for maintaining the integrity of electrical systems and protecting valuable assets. Its integration into a facility's electrical infrastructure contributes directly to operational efficiency and safety protocols.
  • WEG UMBW-4B1-7 Mini Circuit Breaker for industrial applications
  • Provides reliable overload and short-circuit protection
  • Features advanced thermal-magnetic trip mechanism for precise tripping
  • Compact design ideal for space-constrained electrical enclosures
  • Durable construction engineered for demanding industrial environments

Specifications

Series
UMBW
Package Weight (Imperial)
0.3 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.