Why Choose the ABB F204BS-125/0.3L Residual Current Circuit Breaker?
The ABB F204BS-125/0.3L, also known as F204 B S-125/0.3-L, is a professional 4 pole residual current circuit breaker (RCCB) designed to protect electrical installations against earth fault currents in demanding commercial and industrial environments. As part of the trusted ABB F200 Type B series, it provides advanced protection for circuits containing modern power electronic equipment.
This RCCB features Type B residual current protection, enabling detection of alternating residual currents, pulsating DC residual currents and smooth DC earth fault currents. Its selective delayed High Immunity operating characteristic helps reduce unwanted nuisance tripping and supports discrimination between upstream and downstream protective devices.
With a 125 A rated current, 300 mA residual operating current and 4 pole configuration, the ABB F204BS-125/0.3L is ideal for higher load three phase distribution systems where advanced Type B protection, fire protection and improved continuity of service are required.
Key Advantages
- Professional 4 pole RCCB for commercial and industrial installations.
- 125 A rated current for higher load distribution circuits.
- 300 mA residual current sensitivity for fault protection and fire protection applications.
- Type B protection for AC, pulsating DC and smooth DC residual currents.
- Selective delayed High Immunity operation supports improved service continuity.
- Suitable for installations with drives, inverters, UPS systems and power electronics.
Key Features
- ABB F200 Type B RCCB series.
- F204 B S-125/0.3-L model designation.
- 125 A rated current.
- 300 mA residual operating current.
- 4 pole configuration.
- Type B earth leakage protection.
- Selective delayed High Immunity operating characteristic.
- Compact DIN rail mounting design.
Selective Type B Earth Leakage Protection
Residual current circuit breakers monitor the current balance between conductors and disconnect the supply when residual earth leakage current is detected. This helps protect people, equipment and electrical installations against faults caused by insulation failure or leakage to earth.
The ABB F204BS-125/0.3L is designed for applications where smooth DC fault currents may be generated by electronic loads. Its Type B detection and selective delayed characteristic make it suitable for variable frequency drives, rectifiers, UPS systems, inverters and other power electronic equipment.
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.
