WEG UMBW-1C3-50 - MINI CIRCUIT BREAKER UMBW-1C3-50
WEG

UMBW-1C3-50

Alternate Item Number: 14360296

UPC: 7909492436065

Contact for Pricing

Overview

The WEG UMBW-1C3-50 is a 50A, 1-pole miniature circuit breaker designed for industrial electrical equipment. This thermal-magnetic MCB features a C-curve trip characteristic with an 8xIn magnetic trip, providing reliable protection against overloads and short circuits. It is UL489 listed for branch circuit protection and UL1077 listed for equipment protection, ensuring compliance for diverse applications. The compact 17.5mm width per pole optimizes panel space, while the cuttable busbar system simplifies installation. Compatible with both AC and DC voltages, the UMBW-1C3-50 supports control panels, motor control centers, and distribution boards. Its positive trip-free snap action mechanism guarantees dependable switching, and visual status indication offers clear fault identification. Ideal for industrial environments requiring precise and reliable circuit protection.
  • 50A current rating with C-curve trip characteristic (8xIn magnetic trip)
  • UL489 listed for branch circuit protection and UL1077 for equipment protection
  • Compact 17.5mm width per pole for space-efficient panel mounting
  • Supports both AC and DC voltages for versatile applications
  • Cuttable busbar system for simplified installation and wiring

Specifications

Current Rating
50 A
Mounting Type
DIN Rail
Poles
1P
Series
UMBW
Series
UMBW-1C3
Package Weight (Imperial)
1 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

What is the magnetic trip current for the C-curve on the UMBW-1C3-50?

The UMBW-1C3-50 features a C-curve with an 8xIn (+/-20%) magnetic trip current.

What UL approvals does the WEG UMBW-1C3-50 have?

The WEG UMBW-1C3-50 is UL489 listed as a branch circuit protective device and UL1077 listed for equipment protection.

What is the width per pole for the UMBW-1C3-50 circuit breaker?

The UMBW-1C3-50 has a compact width of 17.5mm per pole.

Can the UMBW-1C3-50 be used for both AC and DC voltage applications?

Yes, the UMBW series, including the UMBW-1C3-50, is available for both AC and DC voltages.

What type of mechanism ensures reliable switching in the UMBW-1C3-50?

The UMBW-1C3-50 utilizes a positive trip-free snap action mechanism to ensure reliable switching.

How to Install the WEG UMBW-1C3-50 Miniature Circuit Breaker

Step-by-step guide to mounting and wiring the UMBW-1C3-50 on a DIN rail.

Estimated time: 15m

Tools needed:

Screwdriver, Wire strippers, Crimping tool

Supplies needed:

Mounting screws, Busbar, Wiring cables

  1. Mount the breaker on the DIN rail

    Position the UMBW-1C3-50 on the DIN rail and press firmly until it snaps into place.

  2. Connect the busbar

    Insert the cuttable busbar into the breaker's connection terminals and secure it with screws.

  3. Wire the breaker

    Strip the wiring cables, insert them into the breaker terminals, and tighten the screws to secure the connections.

  4. Verify installation

    Check all connections for tightness and ensure the breaker is properly seated on the DIN rail.

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.