Technical Parameters
Electrical Ratings
Rated Current: 400 A
Utilization Category: gG (general purpose protection for overloads and short circuits)
Rated Voltage: 500 V AC (typical application voltage for low‑voltage systems)
Breaking Capacity: High Rupturing Capacity suitable for up to approx. 80 kA short‑circuit currents at rated voltage
Fuse Size / Type: Size 2 “C2” (NH2 / flat knife fuse link style) used in compatible fuse holders
Standards Compliance: Designed to meet IEC/EN 60269 series for low‑voltage HRC fuse links
Functional Summary
Type: High Rupturing Capacity Fuse Link
Current Rating: 400 A
Voltage Rating: up to 500 V AC
Protection Category: gG (general purpose)
Breaking Capacity: ~80 kA class for robust fault interruption
Usage & Application
The ABB OFAFC2GG400 is suitable for:
Protection of distribution circuits in industrial, commercial and utility systems
Use in NH‑type fuse holders / switch‑fuse disconnectors
Motor feeders, transformer protection, cable trains, and general overload/short‑circuit safeguarding
Backup protection ahead of circuit breakers
The ABB OFAFC2GG400 is a high‑quality HRC (High Rupturing Capacity) fuse link designed to protect electrical circuits and equipment from overload and short‑circuit conditions. It is part of ABB’s OFAFC2 series of general‑purpose low‑voltage fuse links with a gG utilization category, meaning it provides full protection for both overloads and short circuits in distribution and industrial installations.