ABB F204 A-125/0.5 four pole Type A residual current circuit breaker with 125 A rated current and 500 mA residual operating current for commercial and industrial electrical protection.
£1,823.58
The ABB F204 A-125/0.5 is a premium four-pole Residual Current Circuit Breaker (RCCB) designed to provide dependable protection against earth leakage faults in commercial, industrial and three-phase electrical installations. As part of the trusted ABB F200 series, it safeguards both people and electrical equipment by automatically disconnecting the supply whenever hazardous residual currents are detected.
Featuring Type A residual current detection, the F204 A-125/0.5 detects both sinusoidal AC and pulsating DC residual currents, making it suitable for modern electrical systems incorporating electronic equipment, power supplies, automation controls, EV infrastructure and variable speed drives.
With a 125 A rated current, 500 mA residual operating current and a four-pole configuration, this RCCB is ideally suited to higher-load three-phase distribution boards, industrial machinery, commercial buildings and infrastructure projects requiring reliable earth fault protection.
Residual Current Circuit Breakers continuously monitor the balance of current flowing through live conductors and neutral. If an earth leakage fault occurs, the RCCB disconnects the circuit rapidly, helping reduce the risk of electric shock, equipment damage and electrical fire.
The ABB F204 A-125/0.5 combines dependable residual current protection with ABB's proven engineering, making it suitable for demanding electrical installations where long-term reliability, safety and compliance are essential.
| Current | 125 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | F200 |
| Model | F204 A-125/0.5 |
| Manufacturer part number | 2CSF204101R4950 |
| Product type | Residual Current Circuit Breaker (RCCB) |
| Rated current | 125 A |
| Residual operating current | 500 mA |
| Residual current type | Type A |
| Number of poles | 4 |
| Rated operational voltage | 230 / 400 V AC |
| Frequency | 50 / 60 Hz |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 4 kV |
| Rated conditional short-circuit current | 10 kA |
| Maximum surge current | 0.25 kA |
| Mounting type | DIN rail |
| Protection rating | IP2X |
| Dimensions (H × W × D) | approx. 85 × 72 × 69.5 mm |
| Weight | approx. 500 g |
It provides residual current protection by disconnecting electrical circuits when earth leakage currents are detected, helping protect people and electrical installations.
Type A RCCBs detect both alternating sinusoidal and pulsating DC residual currents, making them suitable for installations containing modern electronic equipment.
The ABB F204 A-125/0.5 has a 125 A rated current.
This model provides a 500 mA residual operating current for dependable earth leakage protection.
The device is designed for standard DIN rail mounting inside electrical distribution boards and industrial control panels.
ABB F200 residual current circuit breakers are trusted worldwide by electrical contractors, panel builders and maintenance engineers for reliable earth leakage protection, robust construction and long operational life.
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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...