ABB F204 AC-25/0.5 L four pole Type AC residual current circuit breaker with 25 A rated current and 500 mA residual operating current for commercial and industrial electrical protection.
£192.74
The ABB F204 AC-25/0.5 L is a premium 4 pole residual current circuit breaker (RCCB) designed to provide dependable protection against earth leakage faults in commercial, industrial and infrastructure electrical installations. Part of the proven ABB F200 Series, it delivers reliable protection for people and electrical systems while meeting recognised international safety standards.
Featuring a 25 A rated current and a 500 mA rated residual operating current, this RCCB is designed for three-phase electrical distribution systems where dependable earth fault protection and enhanced fire protection are required. The Type AC operating characteristic detects alternating sinusoidal residual currents, helping reduce the risk of electric shock and insulation-related electrical fires.
The L variant incorporates a left-hand neutral terminal configuration, making it suitable for switchboards requiring this wiring arrangement. Its compact DIN rail design, high-quality construction and compatibility with ABB accessories make it an excellent choice for professional electrical installations.
Residual current circuit breakers continuously monitor the balance between outgoing and returning current. If an earth leakage fault occurs, the RCCB disconnects the supply almost instantly, helping protect personnel against electric shock while reducing the likelihood of electrical fires caused by insulation failure.
The ABB F200 Series is trusted worldwide for dependable residual current protection, robust construction and long operational life. The F204 AC-25/0.5 L is well suited to three-phase distribution boards and industrial installations requiring a left-hand neutral configuration.
| Current | 25 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | F200 RCCB Series |
| Model | F204 AC-25/0.5 L |
| Product ID | 2CSF204023R4250 |
| Product type | Residual Current Circuit Breaker (RCCB) |
| Rated current | 25 A |
| Rated residual operating current | 500 mA |
| Residual current type | Type AC |
| Rated operational voltage | 230 / 400 V AC |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50 / 60 Hz |
| Number of poles | 4 |
| Operating characteristic | Instantaneous |
| Rated conditional short-circuit current | 10 kA |
| Rated service short-circuit breaking capacity | 1 kA |
| Maximum surge current | 0.25 kA |
| Protection rating | IP2X |
| Mounting type | DIN rail |
| Neutral terminal position | Left |
| Dimensions (H × W × D) | 85 × 70 × 69 mm |
| Weight | Approx. 0.36 kg |
| Standards | IEC/EN 61008 |
It provides residual current protection by disconnecting the electrical supply when an earth leakage fault is detected, helping protect people and electrical installations.
The 25 A rating is the maximum continuous current the RCCB is designed to carry during normal operation.
The 500 mA sensitivity is commonly specified for equipment and fire protection applications where higher residual current thresholds are required.
This RCCB detects alternating sinusoidal residual currents, making it suitable for standard AC electrical circuits.
The L designation indicates that the neutral terminal is positioned on the left-hand side to suit installations requiring this wiring arrangement.
ABB F200 Series residual current circuit breakers are trusted by electricians, panel builders and industrial engineers worldwide for dependable earth leakage protection, robust construction and long-term operational reliability.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...