Eaton Bussmann Series Expulsion Fuse Links
Protegiendo transformadores de distribución de media tensión
Product Overview
Eaton's Bussmann Series expulsion fuse links offer robust protection for medium voltage distribution transformers. With over 40 years of experience, Eaton provides compatible designs and a wide variety of models to meet diverse application needs.
Applications
- Protection of the transformer primary
- Protection of the feeder
- Protection of capacitor banks
Certifying Agency Information
- Type T complies with ANSI C37-42
- Type K complies with ANSI C37-42
Product Options
- Model B: Fuse link with a fixed NEMA round head.
- Model U: Universal fuse link with double cable and a removable NEMA round head.
- Model D: Fuse link with double cable, without a NEMA round head.
- Model BR: Similar to Model B, but the round head is secured by a 1/4" UNF thread, allowing the use of an extension rod.
Current-Time Characteristics
- Type T: Complies with ANSI C37-42 slow-blowing characteristics.
- Type K: Complies with ANSI requirements for fast-blowing characteristics.
- Type XA: High-speed expulsion fuse link, suitable for applications requiring high system protection at the expense of differentiation.
Voltage and Current Ratings
Available voltage ratings range from 15 kV to 72 kV, with current ratings from 1 A to 100 A.
Voltage Classification: 15, 25, 46, 72 kV
Current-Time Characteristics: T, K, XA
Type of Fuse Link End: B, U, D, BR
Current Classification: 1, 2, 3, 4, 5, 6, 7.5, 8, 10, 12, 15 Amperes (corresponding to 20, 25, 30, 40, 50, 60, 65, 75, 80, 100 Amperes respectively)
Cross-Reference Table for Expulsion Fuse Links
| Eaton | Eaton Bussmann series (UL Type K) | Eaton Bussmann series (EEI-NEMA Type K) | S&C | Protelec-MT | ELEMSA | ELECTRAMEX |
|---|---|---|---|---|---|---|
| 25KBR3 | FL3K3 | 265003R1 | 15/27EFU-3 | 2066A3 | EF 27K-3 | |
| 25KBR5 | FL3K5 | 265005R1 | 15/27EFU-5 | 2066A4 | EF 27K-5 | |
| 25KBR6 | FL3K6 | 265006R1 | 15/27EFU-6 | 000258 | EF 27K-6 | |
| 25KBR7.5 | FL3K8 | 265008R1 | 15/27EFU-8 | 2066A5 | EF 27K-8 | |
| 25KBR10 | FL3K10 | 265010R1 | 15/27EFU-10 | 2066A6 | EF 27K-10 | |
| 25KBR12 | FL3K12 | 265012R1 | 15/27EFU-12 | 2066A7 | EF 27K-12 | |
| 25KBR15 | FL3K15 | 265015R1 | 15/27EFU-15 | 2066A8 | EF 27K-15 | |
| 25KBR20 | FL3K20 | 265020R1 | 15/27EFU-20 | 000269 | EF 27K-20 | |
| 25KBR25 | FL3K25 | 265025R1 | 15/27EFU-25 | 2066A9 | EF 27K-25 | |
| 25KBR30 | FL3K30 | 265030R1 | 15/27EFU-30 | 000273 | EF 27K-30 | |
| 25KBR40 | FL3K40 | 265040R1 | 15/27EFU-40 | 2066AA | EF 27K-40 | |
| 25KBR50 | FL3K50 | 265050R1 | 15/27EFU-50 | 000277 | EF 27K-50 | |
| 25KBR60 | FL3K65 | 265065R1 | 15/27EFU-65 | 2068A1 | EF 27K-65 | |
| 25KBR75 | FL3K80 | 265080R1 | 15/27EFU-80 | 000282 | EF 27K-80 | |
| 25KBR100 | FL3K100 | 2650100R1 | 15/27EFU-100 | 000285 | EF 27K-100 |
Solid fuse links with 100 A rating are also available in universal and round head versions for expulsion fuse holders. They are ordered similarly, by adding 'S', for example, 15SB...
Dimensions (mm)
1-50 Amperes:
Double cable: 125 (4.92) length, Ø10 (0.39) diameter
Universal: 125 (4.92) length, Ø19 (0.75) diameter
Fixed round head: 10.5 (0.41) diameter
Removable round head: Ø7.5 (0.29) diameter
60-100 Amperes:
Double cable: 125 (4.92) length, Ø11 (0.43) diameter
Universal: 125 (4.92) length, Ø19 (0.75) diameter (Adjustable in assemblies from 65-100 A only)
Fixed round head: Ø19 (0.75) diameter
Removable round head: Ø19 (0.75) diameter
Dimension Table:
| Type | A (mm) | Type | A (mm) | Type | Color | Type | Color |
|---|---|---|---|---|---|---|---|
| 15 kV | 533 (21") | 46 kV | 787 (31″) | XA | Rosa | T | Verde |
| 25 kV | 660 (26") | 72 kV | 1016 (40") | K | Amarillo |
Note: Type BR is similar to the round head shown, except the head is secured by a 6.3 mm UNF thread. For dimensions of 50-100 A expulsion fuse links, consult Bussmann series specialist engineers.
Color coding for correct installation and/or replacement: XA - Rosa, T - Verde, K - Amarillo.
Current-Time Characteristics - Type "T" Fuse Links
Curves corresponding to minimum fuse times with positive current variations.
Current-Time Characteristics - Type "K" Fuse Links
Curves corresponding to minimum fuse times with positive current variations.
Leadership in Circuit Protection
Eaton offers a comprehensive range of solutions for every application in circuit protection. Eaton provides:
- Solutions to reduce arc flash energy for personnel and equipment safety.
- Cost-effective and simple solutions for selective coordination requirements.
- Experienced and proven solutions to meet national and local standards.
- Proven selective coordination combinations: breaker/breaker, breaker/fuse, and fuse/fuse.
- A "one-stop-shop" for design problems, backed by professional expertise and an unparalleled product line.
Eaton aims to provide the most suitable solution for your application, understanding that decision-makers seek innovative products and a strong commitment to customer success.
Commercial Assistance
For product and Bussmann series service inquiries:
Monday to Friday, 8:00 AM to 6:00 PM (Central Mexico Time).
Toll-free number: 01800-8-FUSEMX (387369)
Switchboard: +52 1 55 5804-8200
Application Engineering
Technical support is available for all customers, provided by qualified engineers offering technical and application support.
Monday to Friday, 8:00 AM to 6:00 PM (Central Mexico Time).
Toll-free number: 01800-8-FUSEMX (387369)
Email: ventasbussmannmexico@eaton.com
Contact Information
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
Division Bussmann
Poniente 148 #933
México, 02300
México
Eaton.com/bussmannseries
© 2019 Eaton. All Rights Reserved. Printed in Mexico. Publication No. 10857. January 2019.
Eaton and Bussmann are registered trademarks of Eaton in the US and other countries. Use of Eaton's trademarks requires prior written consent from Eaton.
For information on Eaton's Bussmann series products, call 01800-8-FUSEMX(387369) or visit Eaton.com/bussmannseries.
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