ABB F204BS-125/0.5 4 pole Type B selective residual current circuit breaker with 125 A rated current, 500 mA sensitivity and delayed operation for advanced industrial electrical protection.
£6,958.74
The ABB F204BS-125/0.5, also known as F204 B S-125/0.5-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 residual current 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 operating characteristic helps support discrimination with downstream devices, reducing unwanted tripping and improving continuity of service across larger electrical installations.
With a 125 A rated current, 500 mA residual operating current and 4 pole configuration, the ABB F204BS-125/0.5 is ideal for higher load three phase distribution systems where advanced Type B protection, fire protection and dependable fault protection are required.
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-125/0.5 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.
| Current | 125 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | F200 Type B |
| Model | F204 B S-125/0.5-L |
| Product ID | 2CSF204823R4950 |
| EAN | 8012542731238 |
| Product type | Residual Current Circuit Breaker (RCCB) |
| Rated current | 125 A |
| Rated residual operating current | 500 mA |
| Residual current type | Type B |
| Operating characteristic | Selective delayed |
| Number of poles | 4 |
| Rated voltage | 230/400 V AC |
| Frequency | 50 / 60 Hz |
| Standards | IEC/EN 61008-1, IEC/EN 61008-2-1, IEC/EN 62423 |
| Mounting type | DIN rail |
| Product net width | approx. 72 mm |
| Product net height | approx. 85 mm |
| Product net depth | approx. 75 mm |
| Built-in depth | approx. 69 mm |
| Weight | approx. 0.50 kg |
| HS Code | 85363030 |
| Country of Manufacture | Germany |
It provides selective Type B residual current protection for commercial and industrial electrical installations where smooth DC fault currents may occur.
The ABB product ID is 2CSF204823R4950.
This version provides 500 mA residual current sensitivity, commonly used for fault protection and fire protection applications.
Type B protection detects AC residual currents, pulsating DC residual currents and smooth DC residual currents, making it suitable for installations with drives, inverters, UPS systems and other power electronic equipment.
Selective delayed operation helps coordinate protection with downstream devices, reducing nuisance tripping and improving continuity of service in larger electrical installations.
ABB F200 Type B residual current circuit breakers are trusted by electrical contractors, OEMs and industrial engineers for dependable protection in demanding installations containing modern power electronic equipment.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...