ABB F204 A-125/0.03 four pole Type A residual current circuit breaker with 125 A rated current and 30 mA residual operating current for commercial and industrial electrical protection.
£2,028.07
The ABB F204 A-125/0.03 is a premium 4 pole residual current circuit breaker (RCCB) engineered to provide dependable protection against earth leakage faults in commercial, industrial and infrastructure electrical installations. As part of the trusted ABB F200 Series, it delivers reliable protection for people and electrical systems by disconnecting the supply whenever dangerous residual current is detected.
With a 125 A rated current and a highly sensitive 30 mA rated residual operating current, this RCCB is ideal for high-capacity three-phase installations requiring enhanced personnel protection. Its Type A operating characteristic detects both alternating sinusoidal residual currents and pulsating DC residual currents, making it suitable for modern electrical systems incorporating electronic equipment.
Designed for DIN rail mounting, the ABB F204 A-125/0.03 combines compact dimensions, robust construction and compatibility with ABB accessories. Its proven reliability and long service life make it an excellent solution for electrical distribution boards, switchgear assemblies and industrial control panels.
Residual current circuit breakers continuously monitor the balance between outgoing and returning current. If an earth leakage fault occurs, the RCCB disconnects the electrical supply almost instantly, helping protect personnel against electric shock while reducing the risk of equipment damage and electrical fires caused by insulation failure.
The ABB F204 A-125/0.03 is particularly suited to installations containing electronic equipment, variable speed drives, UPS systems, LED lighting and automation equipment where Type A residual current protection is recommended.
| Current | 125 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | F200 RCCB Series |
| Model | F204 A-125/0.03 |
| Product ID | 2CSF204101R1950 |
| Product type | Residual Current Circuit Breaker (RCCB) |
| Rated current | 125 A |
| Rated residual operating current | 30 mA |
| Residual current type | Type A |
| 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 |
| Maximum surge current | 0.25 kA |
| Protection rating | IP2X |
| Mounting type | DIN rail |
| Mounting position | Any |
| Neutral terminal position | Right |
| Dimensions (H × W × D) | approx. 85 × 72 × 69.5 mm |
| Weight | approx. 0.50 kg |
| Standards | IEC/EN 61008 |
It provides residual current protection by disconnecting the electrical supply whenever earth leakage is detected, helping protect people and electrical installations.
The 125 A rating is the maximum continuous current the RCCB is designed to carry under normal operating conditions.
A 30 mA residual operating current provides enhanced protection against electric shock and is commonly specified where personnel protection is required.
Type A RCCBs detect alternating sinusoidal residual currents together with pulsating DC residual currents produced by many modern electronic devices.
It is designed for DIN rail mounting inside commercial, industrial and infrastructure electrical distribution boards and switchgear.
ABB F200 Series residual current circuit breakers are trusted worldwide by electricians, panel builders and industrial engineers for dependable earth leakage protection, outstanding build quality and long-term 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...