Why Choose the ABB F204 B-125/0.3-L Residual Current Circuit Breaker?
The ABB F204 B-125/0.3-L is a professional 4 pole residual current circuit breaker (RCCB) designed to protect electrical installations against earth fault currents while providing enhanced protection for applications containing power electronic equipment. As part of the trusted ABB F200 Type B series, it delivers dependable protection for commercial, industrial and specialist installations.
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 10 ms delayed High Immunity operating characteristic improves resistance to nuisance tripping while maintaining excellent protection against dangerous earth leakage currents. It is particularly suitable for installations containing variable speed drives, frequency converters, UPS systems and EV charging infrastructure.
With a 125 A rated current, 300 mA residual operating current and 4 pole configuration, the ABB F204 B-125/0.3-L is ideal for higher load three phase distribution systems where advanced residual current protection and fire protection are required.
Key Advantages
- Professional 4 pole RCCB for commercial and industrial installations.
- 125 A rated current for higher load applications.
- 300 mA residual current sensitivity for fire protection and fault protection.
- Type B protection for AC, pulsating DC and smooth DC residual currents.
- 10 ms delayed High Immunity operating characteristic reduces nuisance tripping.
- Suitable for installations with drives, inverters, UPS systems and EV charging equipment.
Key Features
- ABB F200 Type B RCCB series.
- F204 B-125/0.3-L model.
- 125 A rated current.
- 300 mA residual operating current.
- 4 pole configuration.
- Type B earth leakage protection.
- 10 ms delayed High Immunity operation.
- 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 reduce the risk of electric shock while protecting electrical installations against insulation faults.
The ABB F204 B-125/0.3-L is designed for applications where smooth DC fault currents may be generated by electronic equipment. Its wide frequency detection range and high immunity characteristics provide dependable protection while maintaining excellent system availability.
Typical Applications
- Variable frequency drive installations.
- Industrial automation systems.
- EV charging infrastructure.
- UPS and inverter systems.
- Renewable energy installations.
- Commercial and industrial three phase distribution systems.
