Bussmann NBB Series Fast-Acting Current-Limiting Fuse, 1500V
The Bussmann NBB Series, from Eaton Bussmann, is a fast-acting, current-limiting fuse line rated 1500V and built in a single-barrel body for reliable overcurrent protection. This family is available in amp ratings from 25A to 125A (25A, 35A, 40A, 50A, 70A, 80A, and 125A), giving specifiers a wide range of options while every fuse in the series shares the same 1500V rating, fast-acting response, and current-limiting construction. The non-indicating design keeps the NBB series consistent with standard Bussmann fuse styling across the full amp rating lineup.
Key Features
- Amp Rating Range: Available in 25A, 35A, 40A, 50A, 70A, 80A, and 125A ratings, so the correct fuse can be matched to the circuit's load requirements.
- Fast-Acting Response: Fast-acting element design responds quickly to overcurrent conditions to help protect connected equipment.
- Current-Limiting Construction: Current-limiting operation reduces let-through energy, helping protect downstream conductors and equipment during a fault.
- High Voltage Rating: Rated 1500V, suited for higher-voltage electrical distribution and equipment protection applications.
- Single-Barrel Body: 1-barrel construction consistent across the NBB series lineup.
- Non-Indicating Design: Standard non-indicating fuse body with no blown-fuse indicator window.
Technical Specifications
- Voltage Rating: 1500V
- Fuse Indicator: Non Indicating
- Packaging Type: Standard
- Product Length Depth: 2.5 in
- Product Width: 12 in
- Product Height: 2.5 in
- Product Weight: 2.1 lb
- Compliances: Contact factory
Typical Applications
- Industrial Power Distribution Systems
- Motor and Feeder Circuit Protection
- Switchgear and Panelboard Overcurrent Protection
- High-Voltage Electrical Equipment Protection
- Commercial and Industrial Electrical Installations
Why Bussmann?
Bussmann by Eaton is a long-trusted name in circuit protection, and the NBB series reflects that with a durable single-barrel body, fast-acting and current-limiting performance, and a 1500V rating built for demanding electrical systems. With amp ratings spanning 25A to 125A in one series, electrical professionals can standardize on the NBB line for consistent, code-compliant overcurrent protection across multiple circuit sizes.
Manufacturer Resources
Product Specs
- Packaging Type:
- Standard
- Department:
- Electrical
- Fuse Indicator:
- Non Indicating
- Product Length Depth:
- 2.5 in
- Product Weight:
- 2.1 lb
- Voltage Rating:
- 1500V
- Product Width:
- 12 in
- Compliances:
- Contact factory
- Product Height:
- 2.5 in
- Product Type:
- Fuse
- Series:
- NBB
- Amperage Rating:
- 25A - 125A
- Product Group:
- Fuses
- Product Subgroup:
- Other Fuses