Tron FNQ-12 Time Delay Fuses

Description:

The Tron FNQ-12 Time Delay Fuse is used in electrical protection systems for providing supplemental overcurrent protection in control circuits, transformers, relays, and industrial equipment. Commonly installed in motor control panels, electrical cabinets, lighting circuits, and power distribution systems requiring time-delay fuse protection for inrush current conditions. Maintenance teams and electricians use this part for fuse replacement, electrical repairs, preventative maintenance, and restoration of protected circuits.

Applications:

The Tron FNQ-12 Time Delay Fuse is commonly used in industrial electrical applications including control transformers, relay circuits, instrumentation panels, and motor control equipment where reliable circuit protection and tolerance of temporary startup currents are essential. The FNQ series is designed as a midget time-delay fuse for circuits with inrush current conditions.

Technical Specifications:

• Manufacturer: Bussmann / Eaton
• Series: Tron FNQ
• Model / Part number: FNQ-12
• Product type: Time-delay midget fuse
• Current rating: 12 A
• Voltage rating: 500 VAC
• Fuse class: Midget cartridge fuse
• Fuse speed: Time delay / slow blow
• Interrupting rating: 10 kA RMS symmetrical at 500 VAC
• Dimensions: 13/32" diameter x 1-1/2" length
• Body material: Fibre tube construction
• End caps: Nickel-plated brass
• Function: Provides supplemental overcurrent protection while allowing temporary inrush currents
• Application: Control transformers, relays, lighting circuits, and industrial electrical equipment
• Mounting: Cartridge fuse holder installation
• Standards: UL 248-14, CSA, CE
• Application environment: Industrial control panels, electrical cabinets, and power distribution systems

Common Replacements:

• Bussmann / Eaton FNQ-12 Tron 12A Time Delay Fuse
• Cooper Bussmann FNQ-12 Midget Fuse
• Equivalent 12A 500VAC Time Delay Midget Cartridge Fuse