ABB F204 B-125/0.03-L 4 pole Type B residual current circuit breaker with 125 A rated current and 30 mA sensitivity for advanced commercial and industrial electrical protection.
£6,668.65
The ABB F204 B-125/0.03, also listed as F204 B-125/0.03-L, is a professional 4 pole residual current circuit breaker (RCCB) designed to protect people and electrical installations against earth fault currents. As part of the trusted ABB F200 series, it provides advanced residual current protection for commercial, industrial and specialist electrical systems.
This RCCB features Type B residual current protection, allowing detection of alternating residual currents, pulsating DC residual currents and smooth DC earth fault currents. This makes it particularly suitable for modern installations containing power electronics, variable speed drives, inverters, UPS systems and equipment that may generate DC residual currents.
With a 125 A rated current, 30 mA residual operating current and 4 pole configuration, the ABB F204 B-125/0.03 is ideal for higher load three phase distribution boards, industrial control panels, machinery circuits and installations requiring advanced Type B earth leakage protection.
Residual current circuit breakers monitor the current balance between conductors and disconnect the supply when a residual earth leakage fault is detected. This helps reduce the risk of electric shock and supports safer operation of electrical installations.
The ABB F204 B-125/0.03 provides Type B residual current detection, making it suitable for applications where smooth DC fault currents may occur. This is especially important in installations with power electronics, variable frequency drives, rectifiers, UPS systems and renewable energy equipment.
| Current | 125 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | F200 |
| Model | F204 B-125/0.03-L |
| Product ID | 2CSF204523R1950 |
| EAN | 8012542988700 |
| Product type | Residual Current Circuit Breaker (RCCB) |
| Rated current | 125 A |
| Rated residual operating current | 30 mA |
| Residual current type | Type B |
| 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 is used to provide advanced residual current protection against earth leakage faults in commercial, industrial and three phase electrical installations.
The ABB product ID is 2CSF204523R1950.
The ABB F204 B-125/0.03 has a 125 A rated current.
Type B protection detects AC residual currents, pulsating DC residual currents and smooth DC residual currents, making it suitable for installations with drives, inverters and electronic power equipment.
It is typically installed on a DIN rail inside distribution boards, switchboards or industrial control panels.
ABB F200 residual current circuit breakers are widely used by electrical contractors, panel builders and industrial engineers for dependable earth leakage protection, robust construction and long term performance across demanding electrical installations.
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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...