Bussmann 12BFGHA71 Medium Voltage Back-Up Fuse-Link, 71A 12kV
The Bussmann 12BFGHA71 is a medium-voltage air fuse-link engineered for back-up protection of primary-side transformers. Rated 71A at 12kV AC, this cylindrical fuse-link measures 359 x 76.2 mm and uses a silver fusible element for consistent, accurate time-current performance. Manufactured to British Standard (BS) requirements and fitted with a striker for positive blown-fuse indication, it is built for bolt-on installation in fuse switch combination units, fuse bases, and fuse switches.
Key Features
- Dimensions: Cylindrical body measuring 359 x 76.2 mm for standard medium-voltage fuse mountings.
- Rated Performance: 71A continuous rating at 12kV AC for dependable primary-side transformer protection.
- Silver Element: Silver fusible element delivers stable, repeatable time-current characteristics.
- Bolt-On Construction: Bolt-on cylindrical design suited to fuse switch combination units, fuse bases, and fuse switches.
- Back-Up Class: Class back-up fuse-link intended for coordination with upstream and downstream protective devices.
- Interrupt Rating: 40 kAIC interrupt rating supports use in high fault-current medium-voltage systems.
- With Striker: Integrated striker provides mechanical/visual indication when the fuse-link has operated.
- Element Resistance: 10.6 ohms resistance rating for consistent element performance.
Certifications & Compliance
- Manufactured to British Standard (BS) requirements
- Rated for 50 Hz AC operation
Technical Specifications
- Application: Protection of primary side transformers | used in fuse switch combination units, fuse bases and fuse switches
- Barrels: 1
- Class: Class back-up
- Compliances: Contact factory
- Construction Type: Bolt-on
- Element: Silver
- Fuse Shape: Cylindrical
- Installation Technique: Air
- Interrupt Rating: 40 kAIC
- Packaging Type: Standard
- Product Height: 80 mm
- Product Length Depth: 390 mm
- Product Weight: 4200.26192 g
- Product Width: 270 mm
- Rated Frequency Max: 50 Hz
- Rated Frequency Min: 50 Hz
- Release Characteristic: Other
- Resistance: 10.6 ohms
- Standard: British Standard
- Utilization Category: Other
- Voltage Type: AC
- With Striker: Yes
Typical Applications
- Protection of Primary-Side Transformers
- Fuse Switch Combination Units
- Fuse Bases and Fuse Switches
- Medium-Voltage Distribution Systems
- Industrial and Utility Electrical Protection
Why Bussmann?
Bussmann builds this 12BFGHA71 fuse-link with a silver element, bolt-on construction, and a 40 kAIC interrupt rating for reliable back-up protection in medium-voltage systems. Compliance with British Standard (BS) requirements and an integrated striker support code-compliant, serviceable protection.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 71 A
- Barrels:
- 1
- Class:
- Class back-up
- Compliances:
- Contact factory
- Construction Type:
- Bolt-on
- Element:
- Silver
- Fuse Indicator:
- With Striker
- Fuse Shape:
- Cylindrical
- Installation Technique:
- Air
- Interrupt Rating:
- 40 kAIC
- Packaging Type:
- Standard
- Performance Cat According To Iec 60282 1:
- Back-up
- Product Height:
- 80 mm
- Product Length Depth:
- 390 mm
- Product Weight:
- 4200.26192 g
- Product Width:
- 270 mm
- Rated Frequency Max:
- 50 Hz
- Rated Frequency Min:
- 50 Hz
- Release Characteristic:
- Other
- Resistance:
- 10.6 ohms
- Standards:
- British Standard
- Utilization Category:
- Other
- Voltage Rating:
- 12 kV
- Voltage Type:
- AC
- With Striker:
- Yes
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse