Bussmann Time Delay Midget Fuse FNM Series 10A 250V Dual Element Non-Indicating Ferrule End

Bussmann Time Delay Midget Fuse FNM Series 10A 250V Dual Element Non-Indicating Ferrule End

Professional-Grade Compact Circuit Protection for Control Applications

The Bussmann Time Delay Midget Fuse FNM Series delivers superior electrical protection and circuit safety for control circuits, instrumentation, and small motor applications. This compact time-delay fuse features dual element construction designed for electrical contractors, industrial facilities, and commercial installations, providing the reliable overcurrent protection and industry-leading safety that electrical professionals demand for space-constrained applications.

Professional Features & Benefits

Time Delay Protection

• Dual Element Construction - Provides time delay characteristics to handle motor starting currents and temporary overloads while clearing short circuits quickly
• 10 Ampere Rating - Precisely calibrated for control circuit protection with reliable overcurrent response
• Compact Midget Design - Space-saving 1.44" x 0.39" x 0.39" dimensions ideal for control panels and tight installations
• Ferrule End Connections - Secure ferrule-to-ferrule connection ensures reliable electrical contact and easy installation

Safety & Standards Compliance

• 10 kAIC Interrupt Rating at 125VAC - High fault current clearing capability for safe circuit protection
• CE Marked Compliance - Meets European safety standards for international installations
• Non-Indicating Design - Professional appearance with reliable operation indication through circuit monitoring

Technical Specifications

Amperage Rating: 10A | Voltage Rating: 250V | Interrupt Rating: 10 kAIC at 125VAC, 200 AIC at 250VAC | Dimensions: 1.44" H x 0.39" W x 0.39" D | Weight: 0.2 lb | Element Type: Dual Element | Connection: Ferrule End x Ferrule End | Construction: Nickel-plated bronze endcap | Indicator: Non-indicating | Compliance: CE Marked

Installation & Setup

1. Verify power is OFF and use proper lockout/tagout procedures before installation
2. Inspect fuse holder for proper size compatibility and clean contact surfaces
3. Insert fuse with ferrule ends making secure contact in fuse holder terminals
4. Ensure proper fuse holder mounting and secure connections per NEC requirements
5. Verify circuit protection coordination with upstream and downstream devices
6. Test installation with appropriate electrical testing equipment before energizing

Professional Applications

Ideal for:

• Control Circuit Protection - Motor control circuits, relay circuits, and automation system protection
• Instrumentation Circuits - Measurement and monitoring equipment protection in industrial facilities
• Small Motor Protection - Fractional horsepower motor protection with time delay characteristics
• Lighting Control Circuits - Lighting contactor and control system protection
• Panel Board Applications - Control panel and electrical enclosure circuit protection
• Industrial Machinery - Machine control circuit protection and equipment safety systems
• Commercial Buildings - HVAC control systems and building automation protection
• Power Distribution - Secondary circuit protection in electrical distribution systems

Dual Element Time Delay Advantage

The dual element design provides superior selective coordination by allowing temporary overloads while quickly clearing dangerous short circuits. This time delay characteristic prevents nuisance tripping during motor starting or equipment energization while maintaining fast fault clearing for electrical safety and equipment protection.

Why Choose Bussmann Quality?

Bussmann's commitment to electrical safety excellence ensures every midget fuse meets rigorous quality standards with CE marking compliance, reliable overcurrent protection, and professional-grade construction. The nickel-plated bronze endcaps provide superior corrosion resistance and electrical conductivity for long-term reliability in demanding electrical installations.