Overview
The Bussmann FNA-1-1/2 time delay fuse is a precision cartridge fuse engineered for AC circuits requiring supplemental protection against overcurrent with delayed response characteristics. Rated 1.5 A with dual-element, non-indicating construction and ferrule-end terminals, it delivers 200 kAIC at 250 Vac and 10 kAIC at 125 Vac. This model is supplied in a box of 10 units, ideal for maintenance, replacement, and system integration in industrial control and electronic equipment applications.
Key Features
- Silver-plated pin for reliable electrical signal activation
- Melamine tube construction with nickel-plated endcaps for durability and long service life
- Dual-element time-delay design permits close sizing on control transformers and relays
- Compact midget form factor (ferrule end × ferrule end) suitable for tight mounting spaces
- Box of 10 fuses for convenient stock rotation and field replacement
Technical Specifications
See specification table below for rated amperage, voltage, interrupt capacity, and dimensional data.
Typical Applications
Circuits with high inrush currents and supplemental protection for inductive circuits up to 250Vac. Common uses include:
- Control transformer protection
- Relay and solenoid circuits
- Motor start protection
- Electronic equipment supplemental circuits
- Industrial automation panels
Compatibility & Replacements
Compatible With
- Standard 5AG/AB midget fuse holders and clips
- Industrial control panels and electronics requiring supplemental fuse protection
- Circuits rated up to 250VAC maximum
- Inductive load applications (motors, solenoids, transformers)
Replaces / Drop-In Replacement For
- FNA1.5, FNA 1.5 Amp, FNA-1.5, FNA 1.5A, FNA1.5A, FNA-1.5A, FNA 1-1/2, FNA 1-1/2A
- Fusetron FNA-1-1/2 equivalent models
- Cooper Bussmann FNA-1-1/2 legacy designation
Works With
- Universal fuse blocks and panel mounts rated for 5AG cartridge fuses
- UL-listed supplemental protection circuits per UL 198G
- Standard electrical distribution and control systems
