Bussmann NNB-R Neutral Dummy Fuse

Secure Your Panel’s Neutral Connection with Precision Engineering

The Bussmann™ NNB-R Neutral Dummy Fuse is a specialized safety component designed to provide reliable blanking for unused neutral fuse positions in electrical distribution panels. Engineered to exacting standards, it ensures system integrity while preventing accidental contact with live terminals.

Key Features

• Safety Compliance: Meets IEC/EN 60269 standards, providing certified isolation for open neutral fuse holders.
• Secure Fit: Precision-engineered for seamless integration with Bussmann NH fuse bases, eliminating vibration or accidental dislodgement risks.
• Durable Construction: Flame-retardant thermoplastic housing withstands high temperatures (up to 125°C) and harsh industrial environments.
• Clear Identification: Bright red color and embossed “NNB-R” labeling enable quick visual confirmation in crowded panels.
• Error Prevention: Blocks incorrect fuse insertion in neutral lines, reducing short-circuit hazards.

Applications

Ideal for:

• Industrial control panels
• Power distribution cabinets
• Renewable energy systems
• Data center switchgear
• Retrofit installations requiring neutral isolation

Technical Specifications

• Rated Voltage: 500V AC/DC
• Dimensions: Standard NH fuse footprint (89mm x 60mm)
• Material: Thermoplastic (UL 94 V-0 rated)
• Color: Red
• Compatibility: Designed for NH fuse holders (e.g., Eaton, ABB, Siemens)

Why Choose Bussmann?
As a global leader in circuit protection, Bussmann delivers rigorously tested components trusted by engineers worldwide. The NNB-R exemplifies our commitment to safety, durability, and effortless maintenance.

Note: For optimal safety, pair with Bussmann NH fuse bases. Always de-energize panels before installation.

Simplify compliance. Eliminate risk. Protect your system.