Overview
The Ferraz Shawmut A220984 is a Protistor cylindrical fuse engineered for industrial AC power distribution. Rated at 80A with a 690V AC operating voltage, this current-limiting fuse offers dependable overcurrent and short-circuit protection for motor circuits, transformers, and power distribution equipment in heavy-duty industrial environments.
Key Features
- Current-limiting design—reduces fault damage and arcing time to minimize equipment stress
- 690V AC rated—suitable for three-phase industrial power systems
- 80A nominal current rating—sized for mid-to-high amperage branch circuits
- Clip-on (cartridge) mounting—standard form factor for easy installation in common fuse holders
- Ceramic body construction—sand-filled design ensures consistent thermal performance
- Silver-plated ferrules—ensures low contact resistance and reliable connection
Technical Specifications
- Manufacturer: Ferraz Shawmut (Mersen)
- Part Number: A220984
- Series: Protistor / GRB
- Rated Current: 80 A
- Voltage Rating: 690V AC
- Current Type: AC
- Fuse Type: Industrial cylindrical (D08/80 form factor)
- Interrupting Rating (I.R.): 80 kA
- Body Material: Ceramic
- Ferrule Material: Silver-plated copper
- Filling: Sand-filled
- Mounting Style: Cartridge / Clip-on holder
- Operating Temperature Range: −20°C to +70°C
- Certifications: UL/CSA (tri-national fuse standard 248)
Typical Applications
- Three-phase motor branch circuit protection (480V/600V systems)
- Power distribution equipment and switchgear
- Transformer primary and secondary protection
- Industrial cable and feeder circuit protection
- Equipment fault current limitation and control
- Heavy industrial manufacturing and processing plants
Compatibility & Replacements
Compatible With
- Three-phase industrial power distribution systems (480V, 600V, 690V AC)
- Standard cartridge fuse holders rated for 690V, 80A minimum
- DIN rail-mounted and bolt-down fuse disconnects
- Motor starter and contactor protection circuits
- Any IEC 60269 Type gB or gR-compliant fuse base
Replaces / Drop-In Replacement For
- Older Gould Shawmut industrial fuses in the same footprint and rating
- Equivalent Mersen Protistor models at 80A/690V AC
- Other UL-listed 80A/690V AC cylindrical fuses (verify base compatibility before ordering)
Works With
- Standard industrial fuse holders and clips for 14×51 mm cartridges
- Three-phase power distribution equipment and switchboards
- Industrial control panels and motor control centers
- IEC 60947 and NFPA 70 (NEC) compliant installations
- Ferraz/Mersen Advisor and FS-series fuse bases
