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

UMBW-1D2-1

Alternate Item Number: 14360527

UPC: 7909492436461

Contact for Pricing

Overview

The **WEG UMBW-1D2-1 Mini Circuit Breaker** is a compact, high-performance protective device engineered to safeguard industrial electrical circuits against overloads and short circuits. Designed for branch circuit protection in motor circuits, distribution panels, and power systems, this miniature circuit breaker (MCB) combines thermal and magnetic trip mechanisms to deliver precise fault detection and rapid disconnection. As a critical component in industrial safety infrastructure, the UMBW-1D2-1 ensures operational continuity while mitigating risks of equipment damage, electrical fires, and system failures. **Key Features and Technical Advantages:** - **Dual Trip Mechanisms:** The thermal trip responds to sustained overloads by heating a bimetallic strip, causing the breaker to trip and interrupt current flow. The magnetic trip reacts instantaneously to short-circuit conditions, providing near-instantaneous protection to prevent catastrophic damage. - **Compact Design:** Engineered for space-constrained installations, the UMBW-1D2-1 fits seamlessly into distribution panels, control cabinets, and motor starters without compromising performance. - **High Breaking Capacity:** Built to handle fault currents typical in industrial environments, this MCB ensures reliable operation even under demanding conditions. - **Modular and Interchangeable:** Compatible with standard DIN rail mounting systems, the UMBW-1D2-1 allows for easy installation, replacement, and scalability in existing or new systems. - **Compliance and Safety:** Designed to meet international electrical standards, including IEC 60898 and UL 1077, the UMBW-1D2-1 provides peace of mind for engineers and technicians prioritizing safety and regulatory adherence. **Industry Applications and Use Cases:** The WEG UMBW-1D2-1 Mini Circuit Breaker is a versatile solution for a wide range of industrial applications. In **manufacturing facilities**, it protects sensitive machinery and automation systems from electrical faults that could disrupt production lines. **HVAC systems** rely on MCBs like the UMBW-1D2-1 to safeguard compressors, fans, and control panels from overloads caused by voltage spikes or mechanical failures. **Renewable energy installations**, including solar and wind power systems, use these breakers to isolate faulty circuits and prevent damage to inverters and battery storage units. Additionally, the UMBW-1D2-1 is ideal for **data centers**, where uninterrupted power supply and fault isolation are critical to preventing downtime and data loss. **Why Choose WEG for Industrial Circuit Protection?** WEG is a globally recognized leader in electrical motor and automation solutions, with a reputation for innovation, reliability, and durability. The UMBW-1D2-1 Mini Circuit Breaker exemplifies this commitment, offering engineers and facility managers a trusted solution for protecting their most critical assets. With decades of experience in industrial electrical systems, WEG understands the unique challenges of modern power distribution—whether in heavy industries like mining and steel production or in precision-driven environments like pharmaceutical manufacturing. **Installation and Maintenance Considerations:** Proper selection and installation of the UMBW-1D2-1 are essential to maximizing its protective capabilities. Engineers should match the breaker’s current rating to the load requirements of the circuit, ensuring it provides adequate protection without nuisance tripping. Regular inspection and testing of the trip mechanisms are recommended to verify functionality, especially in high-vibration environments common in industrial settings. WEG provides comprehensive technical documentation and support to assist professionals in selecting the correct breaker for their application, ensuring optimal performance and longevity. **Conclusion:** For industrial professionals seeking a reliable, compact, and high-performance mini circuit breaker, the **WEG UMBW-1D2-1** stands out as a premier choice. Its robust design, dual trip mechanisms, and compliance with global standards make it an indispensable component in modern electrical protection strategies. Whether safeguarding motors, distribution panels, or critical infrastructure, the UMBW-1D2-1 delivers the safety, efficiency, and peace of mind that industrial operations demand.
  • Dual thermal and magnetic trip mechanisms for overload and short-circuit protection
  • Compact design for DIN rail mounting in space-constrained industrial panels
  • High breaking capacity suitable for demanding industrial environments
  • Compliant with IEC 60898 and UL 1077 safety standards
  • Modular and interchangeable for easy installation and scalability

Specifications

Mounting Type
DIN Rail
Series
UMBW
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.