Eaton protects distribution apparatus from damaging currents and distribution systems from failed apparatus with its Cooper Power™ series 38 kV Bay-O-Net fuse link when used in Eaton's Cooper Power series 38 kV silver-plated Bay-O-Net assemblies. (See Catalog CA132015EN 23 kV and 38 kV Sidewall-Mounted and 23 kV Cover-Mounted Bay-O-Net Fuse Assembly for information about the fuse assembly).
- Designed to allow the fusing of solar, wind and other 24 - 38 kV rated pad-mounted transformer applications
- Ideal use is in a two-fuse protection scheme with a current-limiting backup fuse
- Is an integrated fuse link and cartridge design specially engineered to simplify re-fusing and prevent mis-installation
- Allows the integral (link) cartridge to be easily field replaceable in a 38 kV Bay-O-Net assembly
- No special tools are required for installation
TransFusion™ Coordination Program
This free, web-based, easy-to-use coordination tool makes transformer protective device selection for pad-mounted transformers effortless. By simply inputting a few pieces of data and selecting the desired level of protection, you can quickly find the right Cooper Power Systems ELSP fuse, Bay-O-Net fuse, or MagneX™ Interrupter for your application. The TransFusion Coordination Program provides you the flexibility of trying various combinations before deciding on the one that best fits your application needs. A simple click of the print button allows you to print your TCC curves and part numbers.
10A 4000380C06CB
15A 4000380C08CB
25A 4000380C10CB
30A 4000380C11CB
40A 4000380C12CB
65A 4000380C14CB
80A 4000380C16CBCN
120A 4000380C17CBCN
| Fusing For Three-Phase Single Voltage Transformers |
High Voltage
Rating |
Transformer
kVA |
Assumed Impedance % |
38 kV Bay-O-Net Fuse
(Cooper Power series) |
38 kV Back Up
Current-Limiting Fuse
(Cooper Power series ELSP) |
| 34,500Δ |
150 |
2 |
4000380C06CB |
CBUC38050D100 |
| 225 |
3 |
4000380C06CB |
CBUC38050D100 |
| 300 |
3.50 |
4000380C06CB |
CBUC38050D100 |
| 500 |
4.00 |
4000380C08CB |
CBUC38050D100 |
| 750 |
5.75 |
4000380C10CB |
CBUC38065D100 |
| 1000 |
5.75 |
4000380C10CB |
CBUC38065D100 |
| 1100 |
5.75 |
4000380C11CB |
CBUC38080D100 |
| 1250 |
5.75 |
4000380C11CB |
CBUC38080D100 |
| 1500 |
5.75 |
4000380C12CB |
CBUC38100D100 |
| 1750 |
5.75 |
4000380C12CB |
CBUC38100D100 |
| 1850 |
5.75 |
4000380C12CB |
CBUC38100D100 |
| 2000 |
5.75 |
4000380C12CB |
CBUC38100D100 |
| 2250 |
5.75 |
4000380C14CB |
CBUC38140D100 |
| 2500 |
5.75 |
4000380C14CB |
CBUC38140D100 |
| 2850 |
5.75 |
4000380C14CB |
CBUC38140D100 |
| 3000 |
5.75 |
4000380C14CB |
CBUC38140D100 |
| 3200 |
5.75 |
4000380C14CB |
CBUC38140D100 |
Three-phase transformer
kV |
transformer kVA |
transformer impedance |
38KV BON FUSE LINK |
38KV ELSP |
| 34.5 |
2000~3200 |
5.75% |
4000380C14CB(65A) |
CBUC38140D100 X 1 |
| 3200~3600 |
5.75% |
4000380C16CBCN(80A) |
CBUC38080D100 X 2 |
| 3600~3750 |
5.75% |
4000380C17CBCN(120A) |
CBUC38100D100 X 2
Or CBUC38120D100 X 2 (suggest) |
| 3750~4400 |
7% |
4000380C17CBCN(120A) |
CBUC38100D100 X 2
Or CBUC38120D100 X 2 (suggest) |
| 4400~5000 |
8% |
4000380C17CBCN(120A) |
CBUC38100D100 X 2
Or CBUC38120D100 X 2 (suggest) |
With the broadest array of transformer components for ANSI/IEEE design type equipment, Cooper supplies transformer and switchgear OEM's with the reliable products needed to service their component requirements. Tap changer, series multiple, loadbreak and sectionalizing switches, as well as apparatus bushings are examples of the numerous products available from the industry's largest supplier of transformer components.
Components & Protective Equipment:
Fault Indicators
Fusing Equipment
Expulsion Links
Bay-O-Net
NX Current Limiting
X-limiter Current Limiting
NX Companion Back-up C
ELF Current-Limiting
Tandem ELF
L Bay-O-Net
ELSG Fuse
Encapsulated Fuse
Magnex Interrupter
Transformer Components
Secondary Bushings
Bushing Wells
Integral Loadbreak Bushing
600A Bushings
Arrester Disconnect
Tap Changer
Sectionalizing Switch
Two positions/Four positions/Three positions Loadbreak Switch
Series - Multiple Switch
All production made in Shanghai China
Audited Supplier 
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