WEG Strategic Partner Distributor
WEG UMBW-1B1-60 - MINI CIRCUIT BREAKER UMBW-1B1-60 WEG specifications: UL approval UL1077; Trip curve B; Number of poles 1 pole; Rated current 60 A; Maximum voltage 277 VAC; Type Thermal-magnetic
WEG

UMBW-1B1-60

Alternate Item Number: 14361539

UPC: 7909492437437

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Overview

The **WEG UMBW-1B1-60 Mini Circuit Breaker** is a high-performance miniature circuit breaker (MCB) engineered for robust overcurrent protection in industrial and commercial electrical systems. Designed to safeguard sensitive equipment and infrastructure, this WEG-manufactured MCB combines thermal and magnetic trip mechanisms to deliver comprehensive protection against overloads and short-circuit conditions. As a critical component in electrical distribution panels, motor circuits, and branch distribution systems, the UMBW-1B1-60 ensures operational continuity while mitigating risks of equipment damage, electrical fires, and system failures. **Key Features and Functionality** The UMBW-1B1-60 is part of WEG’s trusted line of industrial protection devices, known for durability, precision, and compliance with international safety standards. Its compact design allows for seamless integration into tight panel spaces, making it ideal for modern electrical installations where space efficiency is paramount. The dual trip mechanism—thermal for gradual overloads and magnetic for instantaneous short-circuit response—ensures rapid disconnection during fault conditions, protecting downstream equipment and personnel. **Typical Applications and Industry Use Cases** This WEG MCB is widely deployed across diverse industrial sectors, including manufacturing plants, data centers, commercial buildings, and infrastructure projects. Common applications include: - **Motor circuit protection**: Safeguarding industrial motors from overloads and phase imbalances. - **Distribution panels**: Protecting branch circuits in low-voltage switchgear and control panels. - **Lighting and control circuits**: Ensuring stable power delivery to lighting systems and control devices. - **Renewable energy systems**: Integrating into solar or wind power distribution systems to prevent fault propagation. **Why Choose WEG for Circuit Protection?** WEG is a globally recognized leader in industrial electrical solutions, with decades of expertise in motor control, automation, and protection systems. The UMBW-1B1-60 reflects the brand’s commitment to reliability, innovation, and compliance with IEC, UL, and other international standards. Professionals in electrical engineering, maintenance, and system design trust WEG for products that deliver consistent performance under demanding conditions. **Installation and Maintenance Considerations** Proper selection and installation of the UMBW-1B1-60 are critical to system safety and efficiency. Engineers should match the breaker’s current rating and trip characteristics to the load requirements of the protected circuit. Regular inspection and testing—such as verifying trip curves and contact integrity—help maintain optimal functionality. WEG provides comprehensive technical documentation and support to assist with installation, troubleshooting, and compliance with local electrical codes. **Conclusion** For industrial applications demanding reliable, space-efficient, and high-performance circuit protection, the **WEG UMBW-1B1-60 Mini Circuit Breaker** stands as a trusted solution. Its robust design, dual protection mechanisms, and WEG’s reputation for quality make it an essential component in modern electrical systems. Whether protecting critical infrastructure or optimizing operational safety, this MCB delivers the performance and peace of mind professionals require.
  • Dual thermal and magnetic trip mechanisms for overload and short-circuit protection
  • Compact design for space-efficient installation in industrial panels
  • WEG-engineered reliability for motor circuits, distribution panels, and branch circuits
  • Compliance with international safety standards (IEC, UL)
  • Essential for preventing equipment damage, electrical fires, and system failures

Specifications

Maximum voltage
277 VAC
Number of poles
1 pole
Rated current
60 A
Series
UMBW
Trip curve
B
Type
Thermal-magnetic
UL approval
UL1077
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.