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Mersen USBB3PH25K6 - 6P 3PH 600V BUSBAR 25MM
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Mersen USBB3PH25K6 6P 3PH 600V BUSBAR 25MM

Alternate Item Number: USBB3PH25K6

UPC: 782001449261


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Line DrawingSpecification Sheet

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Minimum Qty: 50

Multiplier: 50

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

Mersen USBB3PH25K6 is a 6-pole, 3-phase copper bus bar rated for 600V applications. This UL-listed bus bar features a 25mm² cross-section and a 17.8mm pitch, designed for compact industrial panel integration. It supports 1-, 2-, and 3-phase configurations and is compatible with Mersen UltraSafe Class CC (USCC) and Midget (USM) fuse holders. Manufactured in the US by Mersen, this bus bar provides a touch-safe electrical connection for reliable circuit combinations in industrial electrical systems.
  • 6-pole, 3-phase copper bus bar rated for 600V applications
  • 25mm² cross-section with 17.8mm pitch for compact panel integration
  • UL-listed and manufactured in the US by Mersen
  • Compatible with Mersen UltraSafe Class CC (USCC) and Midget (USM) fuse holders
  • Supports 1-, 2-, and 3-phase configurations for flexible circuit combinations

Specifications

AC Voltage Rating
600 V
Amperage Rating
200 A
Application
Applications where Mersen USM/USCC fuseholders are in use UL 508 panels Solar string combiner boxes Control panels Power distribution panels
Application
• UL 508 panels • Solar string combiner boxes • Control panels • Power distribution panels
Brand Name
Ferraz Shawmut
Class
Accessory
Connection
Comb Bus Bar
DC Voltage Rating
1000 V
Phase
3
Poles
6P 3PH
Series
UltraSafe Class CC (USCC) and Midget (USM)
Series
USBB
Size
4.16 x 0.85 x 1.38 in
Size
105.664 x 21.59 x 35.052 mm
Size
25 mm
Special Features
• Decrease installation time compared to wire solutions • Save panel space with compact design and footprint • Reduce shock hazards with touchsafe cover (included) • Environmentally conscious, RoHS compliant and lead free • Cuttable design offers flexibility
Special Features
• Decrease installation time compared to wire solutions • Save panel space with compact design and footprint • Reduce shock hazards with touch-safe cover (included) • Environmentally conscious, RoHS compliant and lead free • Cuttable design offers flexibility
Standard
• UL Listed to Standard 508, File E348854 • IEC Compliant
Standard
UL Listed to standard UL508, File E348854 IEC Compliant to standard 60947-2
Type
UltraSafe Accessories
Type
Busbar
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
4.16 in x 0.85 in x 1.38 in
Package Dimensions (L x W x H)
105.664 mm x 21.59 mm x 35.052 mm
Package Weight (Imperial)
0.181 lb
Package Weight (Metric)
0.082 kg
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Frequently Asked Questions

What are the voltage and amperage ratings for the USBB bus bar?

The USBB bus bar is rated for 600VAC and 1000VDC. It supports 100A for end feed and 200A for center feed.

What is the SCCR for the USBB bus bar system?

The Short Circuit Current Rating (SCCR) for the USBB bus bar is 10kA and 100kA when used with a 200A J Fuse.

What are the applications for the USBB bus bar system?

The USBB bus bar system is suitable for UL 508 panels, solar string combiner boxes, control panels, and power distribution panels.

What are the key benefits of using the USBB bus bar system?

Benefits include decreased installation time, space savings with a compact design, and reduced shock hazards due to a touch-safe cover.

What fuse holders are compatible with the USBB bus bar system?

The USBB bus bar systems are designed for use with UltraSafe Class CC (USCC) and Midget (USM) fuse holders.

What is the maximum amperage for the USBB feeder terminal?

The USBB Feeder Terminal has a maximum amperage rating of 115A.

What wire range and type are supported by the USBBC1 feeder terminal?

The USBBC1 feeder terminal supports a wire range of 10 - 1/0 AWG and is designed for 60°C Copper wire.

What is the torque specification for the USBBC1 feeder terminal?

The recommended torque for the USBBC1 feeder terminal is 50 lb-in.

What are the available phase configurations for the USBB bus bar?

The USBB bus bar systems are available in 1-, 2-, and 3-phase designs.

What is the cross-section and pitch of the USBB bus bar?

The USBB bus bar has a cross-section of 25mm2 and a pitch of 17.8mm.

Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.