Description
The Bussmann FNQ-R-20 is a 20-ampere, Class CC time delay fuse engineered to deliver dependable overcurrent and short-circuit protection in HVAC, motor control, and industrial control panel applications. As part of Bussmann’s trusted FNQ-R series, this fuse combines a compact 13/32″ x 1-1/2″ form factor with superior current-limiting performance, making it an ideal replacement or upgrade for demanding electrical protection needs.
The FNQ-R series is specifically designed to handle the high inrush currents associated with motor starting and transformer energizing, thanks to its built-in time delay element. This prevents nuisance tripping during normal startup while still providing fast, reliable response to genuine fault conditions.
Key Features
- 20-ampere continuous current rating
- 600V AC voltage rating
- Class CC current-limiting fuse with time delay
- Compact 13/32″ x 1-1/2″ body dimensions
- Designed for motor branch circuit and control circuit protection
- Suitable for use in Class CC fuse holders and fuse blocks
- Resists nuisance tripping during motor and transformer inrush
- UL Listed and CSA Certified
Typical Applications
- HVAC motor control panels and equipment
- Control circuit and transformer protection
- Industrial control panels
- Branch circuit protection for small motors
- Supplementary protection in commercial and light industrial systems
Why Choose the Bussmann FNQ-R Series?
Bussmann’s FNQ-R series fuses are recognized throughout the HVAC and electrical trades for their consistent performance and long service life. The Class CC rating ensures these fuses can only be installed in properly rated holders, preventing the use of lower-rated fuses and enhancing overall system safety. The time delay characteristic makes them especially well-suited for protecting inductive loads where instantaneous-acting fuses would cause unnecessary downtime.







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