Why Choose the ABB F204 B-125/0.5-L Residual Current Circuit Breaker?
The ABB F204 B-125/0.5-L is a professional 4 pole residual current circuit breaker (RCCB) designed to protect electrical installations against earth fault currents while providing advanced protection for circuits containing power electronic equipment. As part of the trusted ABB F200 Type B series, it delivers dependable residual current protection for commercial, industrial and specialist applications.
This RCCB features Type B residual current protection, enabling detection of alternating residual currents, pulsating DC residual currents and smooth DC earth fault currents. The High Immunity delayed operating characteristic helps reduce unwanted nuisance tripping while maintaining reliable earth leakage protection in demanding electrical environments.
With a 125 A rated current, 500 mA residual operating current and 4 pole configuration, the ABB F204 B-125/0.5-L is ideal for higher load three phase distribution systems where advanced residual current protection, fault protection and improved service continuity are required.
Key Advantages
- Professional 4 pole RCCB for commercial and industrial installations.
- 125 A rated current for higher load applications.
- 500 mA residual current sensitivity for fault protection and fire protection applications.
- Type B protection for AC, pulsating DC and smooth DC residual currents.
- High Immunity delayed operation helps reduce nuisance tripping.
- Suitable for installations with drives, inverters, UPS systems and power electronics.
Key Features
- ABB F200 Type B RCCB series.
- F204 B-125/0.5-L model.
- 125 A rated current.
- 500 mA residual operating current.
- 4 pole configuration.
- Type B earth leakage protection.
- High Immunity delayed operating characteristic.
- Compact DIN rail mounting design.
Advanced Type B Earth Leakage Protection
Residual current circuit breakers continuously monitor current flowing through live conductors and disconnect the electrical supply when dangerous earth leakage currents are detected. This helps protect electrical installations against insulation faults while improving safety in demanding environments.
The ABB F204 B-125/0.5-L is designed for applications where smooth DC fault currents may be generated by electronic equipment. Its Type B detection and delayed High Immunity characteristic make it suitable for installations with variable frequency drives, rectifiers, UPS systems, inverters and other power electronic loads.
Typical Applications
- Variable frequency drive installations.
- Industrial automation systems.
- UPS and inverter systems.
- Renewable energy and power conversion equipment.
- Higher load commercial distribution boards.
- Industrial three phase electrical distribution systems.
