WEG UBW400L-FTU400-3A - CIRCUIT BREAKER UBW400L-FTU400-3A WEG specifications: Frame size 400; Trip type Fixed thermal and magnetic; Rated current 400.0 A; Breaker interuption capacity @480 Vac 100.0 kA; Number of poles 3
WEG

UBW400L-FTU400-3A

Alternate Item Number: 13713904

UPC: 7909322748672

Contact for Pricing

Overview

The WEG UBW400L-FTU400-3A molded case circuit breaker provides reliable short-circuit and thermal protection for industrial electrical systems. Rated at 400A with 3 poles, this UL 489-listed breaker is part of WEG’s UBW series, designed for panel mount applications in motor control centers, distribution panels, and auxiliary power circuits. The breaker offers a 100 kAIC interrupting rating at 480V, ensuring robust fault protection for demanding environments. With fixed thermal/magnetic trip (FTU) technology, it responds rapidly to overloads and short circuits, preventing equipment damage and electrical hazards. The UBW400L-FTU400-3A supports wire sizes from 14 AWG to 2/0, making it compatible with a wide range of industrial wiring configurations. Its ambient temperature compensation (-20°C to +70°C) ensures consistent performance across varying conditions. Ideal for protecting motors, transformers, and branch circuits, this breaker helps maintain operational continuity and compliance with electrical safety standards.
  • 400A rated, 3-pole molded case circuit breaker
  • UL 489 listed with 100 kAIC interrupting rating at 480V
  • Fixed thermal/magnetic trip (FTU) for rapid fault response
  • Panel mount only, supports wire sizes 14 AWG to 2/0
  • Ambient temperature compensation from -20°C to +70°C

Specifications

Breaker interuption capacity @480 Vac
100.0 kA
Frame size
400
Number Of Poles
3
Rated current
400.0 A
Trip type
Fixed thermal and magnetic
Package Weight (Imperial)
12.628 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

Is the UBW400L-FTU400-3A UL listed?

Yes, the UBW400L-FTU400-3A is UL 489 listed.

What is the frame size of the UBW400L-FTU400-3A?

The frame size is 400, as indicated by the '400' in the catalog number.

What is the interrupting rating of the UBW400L-FTU400-3A?

The UBW400L-FTU400-3A has a 100 kAIC interrupting rating at 480V AC.

What is the ambient temperature range for this breaker?

The breaker operates reliably from -20°C to +70°C.

What type of trip mechanism does the UBW400L-FTU400-3A use?

The breaker uses fixed thermal and magnetic trip (FTU) technology.

What wire sizes are compatible with this breaker?

The breaker supports wire sizes ranging from 14 AWG to 2/0.

Can this breaker be used in motor control centers?

Yes, the UBW400L-FTU400-3A is designed for motor control centers and distribution panels.

Does the breaker include load side lugs?

The UBW400L-FTU400-3A supports optional multi-conductor load side lugs.

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.