ABB F204 AC-125/0.3 residual current circuit breaker, a 4 pole Type AC RCCB with 125 A rated current and 300 mA residual current sensitivity for electrical distribution and protection applications.
£1,415.27
The ABB F204 AC-125/0.3 is a dependable 4-pole residual current circuit breaker (RCCB) designed to protect electrical installations against earth leakage faults. As part of the trusted ABB F200 series, this device helps improve electrical safety by automatically disconnecting the circuit when residual current exceeds the rated threshold.
Built for commercial, industrial and distribution board applications, the F204 AC-125/0.3 provides robust residual current protection in a compact DIN rail format. Its Type AC operating characteristic is suitable for circuits where sinusoidal alternating residual currents may occur, making it a practical choice for many standard AC electrical systems.
With a rated current of 125 A and a rated residual current of 300 mA, the ABB F204 AC-125/0.3 is suitable for higher-current installations where reliable earth fault protection is required. The 4-pole configuration supports three-phase and neutral circuits in distribution and control panel environments.
Residual current circuit breakers monitor the balance of current flowing through live conductors and disconnect the supply when leakage to earth is detected. This helps reduce the risk of electric shock, insulation fault hazards and damage to electrical systems.
The ABB F204 AC-125/0.3 is designed for use in modern distribution systems where dependable residual current protection is required. Its compact construction, recognised ABB quality and DIN rail format make it suitable for professional electrical panel building and installation work.
| Current | 125 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | F200 |
| Model | F204 AC-125/0.3 |
| Product code | 2CSF204001R3950 |
| Product type | Residual Current Circuit Breaker (RCCB) |
| Rated current | 125 A |
| Rated residual current | 300 mA |
| Residual current type | Type AC |
| Number of poles | 4 |
| Rated voltage | 230/400 V AC |
| Frequency | 50 / 60 Hz |
| Standards | IEC/EN 61008 |
| Degree of protection | IP2X |
| Pollution degree | 2 |
| Mounting type | DIN rail |
| Mounting position | Any |
| Dimensions (H × W × D) | 85 × 72 × 69.5 mm |
| Weight | approx. 0.5 kg |
It is used to provide residual current protection in electrical installations by disconnecting the supply when earth leakage current is detected.
The ABB F204 AC-125/0.3 has a rated current of 125 A.
This model has a rated residual current of 300 mA.
Type AC means the device is designed to detect sinusoidal alternating residual currents in standard AC circuits.
It is typically installed on DIN rail inside distribution boards, control panels and electrical switchgear assemblies.
ABB F200 residual current circuit breakers are trusted by contractors, panel builders and electrical engineers for reliable earth leakage protection in commercial, industrial and building services installations.
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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...