UltraSafe™ Bus Bar System
The UltraSafe™ Bus Bar System is part of the Mersen (formerly Ferraz Shawmut) ultrasafe fuse holders line, distributed by Gross Automation.

Mersen USBB UltraSafe bus bar systems are intended for use with UltraSafe Class CC (USCC) and Midget (USM) fuse holders. The USBB delivers safe and reliable combination of circuits in a compact design. Bus bar systems reduce installation time when compared to wire solutions, offer space savings and deliver touch-safe, shock resistant solutions to panel builders and designers.
Specifications
| Specification | Value |
|---|---|
| Ratings | AC: USBB Bus Bar 600VAC 100A (End Feed)/200A (Center Feed) SCCR: 10kA (stand alone) / 100kA (with 200A J Fuse); USBB Feeder Terminal 600VAC 115A Maximum SCCR: 10kA (stand alone) / 100kA (with 200A J Fuse); USBB Bus Bar 1000VDC 100A (End Feed)/200A (Center Feed) SCCR: 10kA (stand alone) / 100kA (with 200A J Fuse); USBB Feeder Terminal 1000VDC 115A Maximum SCCR: 10kA (stand alone) / 100kA (with 200A J Fuse); UL Listed, File E348854; IEC Compliant; RoHS Compliant |
| Features | Decrease installation when compared to wire solutions; Save panel space with compact design and footprint; Reduce shock hazards with touchsafe cover (included); Eliminate excess costs associated with terminal blocks and labor for wire installation; Increase design flexibility; Environmentally conscious, RoHS compliant and lead free; Protective covers available for unused poles; UL 508 panels; Solar string combiner boxes; Control panels; Power distribution panels |
Features
- Decrease installation when compared to wire solutions
- Save panel space with compact design and footprint
- Reduce shock hazards with touchsafe cover (included)
- Eliminate excess costs associated with terminal blocks and labor for wire installation
- Increase design flexibility
- Environmentally conscious, RoHS compliant and lead free
- Protective covers available for unused poles
- UL 508 panels
- Solar string combiner boxes
- Control panels
- Power distribution panels
Ratings
- AC: USBB Bus Bar 600VAC 100A (End Feed)/200A (Center Feed) SCCR: 10kA (stand alone) / 100kA (with 200A J Fuse)
- USBB Feeder Terminal 600VAC 115A Maximum SCCR: 10kA (stand alone) / 100kA (with 200A J Fuse)
- USBB Bus Bar 1000VDC 100A (End Feed)/200A (Center Feed) SCCR: 10kA (stand alone) / 100kA (with 200A J Fuse)
- USBB Feeder Terminal 1000VDC 115A Maximum SCCR: 10kA (stand alone) / 100kA (with 200A J Fuse)
- UL Listed, File E348854
- IEC Compliant
- RoHS Compliant
Catalog Numbers
| Catalog Number | Column 2 | Column 3 | Column 4 | Column 5 | Column 6 |
|---|---|---|---|---|---|
| USBB1PH25K6 | 1 | 6 | 25mm2 | 17.8mm | Copper |
| USBB1PH25K8 | 1 | 8 | 25mm2 | 17.8mm | Copper |
| USBB1PH25K12 | 1 | 12 | 25mm2 | 17.8mm | Copper |