WEG UMBW-4D1-35 - MINI CIRCUIT BREAKER UMBW-4D1-35
WEG

UMBW-4D1-35

Alternate Item Number: 14362955

UPC: 7909492437994

Contact for Pricing

Overview

The WEG UMBW-4D1-35 Miniature Circuit Breaker (MCB) is engineered to deliver robust and reliable overcurrent protection for a wide array of industrial electrical circuits and equipment. As a critical safety component, this MCB is designed to automatically disconnect power when fault conditions such as overloads or short circuits are detected, thereby safeguarding valuable machinery, preventing equipment damage, and mitigating the risk of electrical fires. Its compact design makes it an ideal solution for applications where space is at a premium, such as in motor control centers, distribution panels, and control cabinets. WEG, a globally recognized leader in electrical equipment manufacturing, brings its extensive expertise to the UMBW-4D1-35. This miniature circuit breaker utilizes a dual-mechanism tripping system, combining thermal protection for sustained overloads and magnetic protection for instantaneous high-current faults. This comprehensive approach ensures that circuits are protected against a broad spectrum of electrical anomalies. The UMBW-4D1-35 is a testament to WEG's commitment to quality, durability, and safety in industrial power management solutions. Key features and benefits of the WEG UMBW-4D1-35 include: * **Reliable Overcurrent Protection:** Effectively shields electrical systems from damaging current surges. * **Compact Design:** Facilitates easy integration into tight spaces within control panels and electrical enclosures. * **Dual Tripping Mechanisms:** Incorporates both thermal and magnetic elements for comprehensive protection against overloads and short circuits. * **Automatic Disconnection:** Enhances safety by immediately interrupting power flow during fault conditions. * **Enhanced Equipment Longevity:** Prevents premature wear and failure of connected electrical devices. * **Fire Hazard Reduction:** Minimizes the risk of electrical fires caused by faulty circuits. This miniature circuit breaker is an indispensable component for professionals in sectors such as manufacturing, automation, process control, and building services. Its application extends to protecting individual motor circuits, lighting circuits, and general power distribution lines. When selecting an MCB, engineers and electricians consider factors like current rating, tripping characteristics, voltage rating, and breaking capacity. The UMBW-4D1-35, with its specific design and WEG's reputation for quality, offers a dependable choice for these critical considerations. Investing in high-quality circuit protection like the WEG UMBW-4D1-35 is fundamental to ensuring operational continuity, personnel safety, and the overall integrity of industrial electrical infrastructure. Its robust construction and advanced protection capabilities make it a cornerstone of modern electrical safety standards.
  • WEG UMBW-4D1-35 Miniature Circuit Breaker for industrial applications.
  • Provides essential overcurrent protection against overloads and short circuits.
  • Features combined thermal and magnetic trip mechanisms for comprehensive safety.
  • Compact design suitable for distribution panels, motor control, and enclosures.
  • Ensures equipment safety, prevents damage, and reduces fire hazards.

Specifications

Current Rating
35 A
Package Weight (Imperial)
0.3 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.