WEG BBS54-2 - DISTRIBUTION BUSBAR BK BBS54-2
WEG

BBS54-2

UPC: 7909322261744

Contact for Pricing

Overview

The WEG BBS54-2 is a distribution busbar system designed for the parallel connection of two WEG MPW18 or MPW40 motor protective circuit breakers. This 54mm busbar system facilitates side-by-side mounting of compatible circuit breakers with screw terminals. It specifically enables the use of side auxiliary contact blocks, ACBS and ACBF, on each motor protective circuit breaker. The BBS54-2 is rated for 63 A operational current (Ie) and a rated insulation voltage of 690 VAC. With dimensions of 85 mm in width and 94 mm in depth, it offers a compact solution for power distribution in control panels and switchgear. Manufactured by WEG, SKU BBS54-2.
  • For parallel connection of two MPW18 or MPW40 circuit breakers
  • Enables side mounting of ACBS and ACBF auxiliary contact blocks
  • Rated operational current (Ie): 63 A
  • Rated insulation voltage: 690 VAC
  • Dimensions: 85 mm (width) x 94 mm (depth)

Specifications

Connection Type
Screw Terminal
Connection Type
Parallel connection
Current Rating
63 A
Material
Copper
Mounting Type
DIN Rail Mount
Mounting Type
DIN rail mountable
Mounting Type
DIN rail-mountable
Series
BBS54
Size
MR 35x7.5, 2m length
Size
85 mm x 94 mm
Size
85 mm (W) x 94 mm (D)
Size
85 mm (width) x 94 mm (depth)
Voltage Rating
690 VAC
Package Weight (Imperial)
0.2904 LB
MT-63 34A 3D SCREW EXP (MT63-3D-34-S-E)

1311001000

MT-63 34A 3D SCREW EXP (MT63-3D-34-S-E)
MT-63 19A 3D SCREW EXP (MT63-3D-19-S-E)

1311000700

MT-63 19A 3D SCREW EXP (MT63-3D-19-S-E)
Ground Lug

DNGL

Ground Lug
CONTACT BLOCK BU BLB-02

BLB-02

CONTACT BLOCK BU BLB-02
CONTACT BLOCK BU BFB-40

BFB-40

CONTACT BLOCK BU BFB-40
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 rated operational current of the BBS54-2?

The BBS54-2 has a rated operational current of 63 A.

What is the rated insulation voltage for this busbar?

The rated insulation voltage is 690 VAC.

Can auxiliary contact blocks be mounted on this busbar?

Yes, it enables side mounting of auxiliary contact blocks ACBS and ACBF on motor protective circuit breakers.

What are the dimensions of the included busbars?

The flat busbars included are MR 35x7.5 with a 2m length.

How many units are included in one package?

The BBS54-2 is sold in packages of 10 units.

What is the purpose of the BBS54-2 busbar?

It is designed for parallel connection of circuit breakers with screw terminals mounted side-by-side.

How to Install the WEG BBS54-2 Distribution Busbar

Step-by-step guide to mounting and connecting the BBS54-2 busbar system.

Estimated time: 15m

Tools needed:

Screwdriver, DIN rail

Supplies needed:

Mounting screws

  1. Mount the DIN rail

    Secure a DIN rail to the mounting surface in the control panel or switchgear.

  2. Position the busbar

    Align the BBS54-2 busbar on the DIN rail and snap it into place.

  3. Mount the circuit breakers

    Install the compatible MPW18 or MPW40 circuit breakers side-by-side on the busbar.

  4. Connect the busbar

    Use the screw terminals to connect the busbar in parallel with the circuit breakers.

  5. Mount auxiliary contact blocks

    Attach side auxiliary contact blocks (ACBS or ACBF) to each circuit breaker as needed.

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.