WEG Strategic Partner Distributor
WEG UMBW-4C1-32 - MINI CIRCUIT BREAKER UMBW-4C1-32
WEG

UMBW-4C1-32

Alternate Item Number: 13641178

UPC: 7909492434337

Contact for Pricing

Overview

The WEG UMBW-4C1-32 Mini Circuit Breaker is a high-performance, compact protective device engineered for industrial electrical systems where space efficiency and reliability are critical. Designed by WEG, a global leader in industrial automation and electrical solutions, this circuit breaker delivers robust overcurrent and short-circuit protection to safeguard sensitive equipment and maintain operational continuity. Its modular design and advanced thermal-magnetic tripping mechanism ensure precise response to fault conditions, minimizing downtime and reducing the risk of equipment damage in demanding environments such as manufacturing plants, automation systems, and power distribution networks. This mini circuit breaker is particularly well-suited for installation in control panels, machinery control centers, and auxiliary power distribution units where compact form factors and high interrupting ratings are required. The UMBW-4C1-32 supports four poles, making it ideal for three-phase systems with neutral protection or balanced multi-phase applications. Its DIN-rail mounting compatibility ensures quick and secure installation, while the clear status indication (ON/OFF/TRIP) allows for immediate visual diagnostics. Built to withstand harsh industrial conditions, the breaker features a durable thermoplastic housing rated for high mechanical strength and resistance to environmental factors such as dust, vibration, and moderate temperature fluctuations. Industry professionals choose the WEG UMBW-4C1-32 for its proven reliability, ease of integration, and compliance with international standards, including IEC 60947-2. It is widely deployed in sectors such as automotive manufacturing, food and beverage processing, mining, oil and gas, and renewable energy installations. Whether used in new installations or retrofits, this circuit breaker provides a cost-effective solution without compromising on safety or performance. With WEG’s reputation for engineering excellence and global technical support, the UMBW-4C1-32 ensures long-term protection and operational integrity for your critical electrical infrastructure. Key advantages include: - Compact 4-pole design for efficient use of panel space - High interrupting capacity suitable for industrial fault currents - Thermal-magnetic tripping for accurate overcurrent and short-circuit response - Easy DIN-rail mounting and modular installation - Compliance with international safety standards for industrial environments - Backed by WEG’s global service network and technical expertise For engineers, electricians, and facility managers seeking a dependable mini circuit breaker that combines performance, durability, and ease of use, the WEG UMBW-4C1-32 is a trusted choice. It represents the convergence of advanced protection technology and practical industrial design—delivering peace of mind in every application.
  • 4-pole compact design for space-efficient industrial installations
  • Thermal-magnetic tripping for precise overcurrent and short-circuit protection
  • DIN-rail mounting for quick, secure installation in control panels
  • High mechanical strength and environmental resistance for harsh conditions
  • Compliant with IEC 60947-2 and backed by WEG’s global support

Specifications

Current Rating
32 A
Material
Thermoplastic
Mounting Type
DIN-Rail
Poles
4P
Poles
4
Series
UMBW
Package Weight (Imperial)
0.33 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.