ABB F204 B-125/0.5-L 4 pole Type B residual current circuit breaker with 125 A rated current, 500 mA sensitivity and delayed high immunity operation for advanced industrial electrical protection.
£6,326.90
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.
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.
| Current | 125 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | F200 Type B |
| Model | F204 B-125/0.5-L |
| Product ID | 2CSF204523R4950 |
| EAN | 8012542730439 |
| Product type | Residual Current Circuit Breaker (RCCB) |
| Rated current | 125 A |
| Rated residual operating current | 500 mA |
| Residual current type | Type B |
| Operating characteristic | Delayed High Immunity |
| Number of poles | 4 |
| Rated voltage | 230/400 V AC |
| Frequency range | 50 / 60 Hz |
| Standards | IEC/EN 61008-1, IEC/EN 61008-2-1, IEC/EN 62423 |
| Protection rating | IP20 terminals, IP40 housing |
| 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 advanced Type B residual current protection for commercial and industrial electrical installations where smooth DC fault currents may occur.
The ABB product ID is 2CSF204523R4950.
This version provides 500 mA residual current sensitivity, commonly used for fault protection and fire protection applications.
Type B RCCBs detect AC, pulsating DC and smooth DC residual currents, making them suitable for variable speed drives, inverters, UPS systems and other power electronic equipment.
It is typically installed on a DIN rail inside commercial distribution boards, industrial switchboards or control panels.
ABB F200 Type B residual current circuit breakers are trusted by electrical contractors, OEMs and industrial engineers for providing 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...