ABB F204 A S-40/0.5 four-pole Type A selective residual current circuit breaker rated at 40 A with 500 mA sensitivity for three-phase electrical distribution systems.
£318.68
The ABB F204 A S-40/0.5 is a premium four-pole selective residual current circuit breaker (RCCB) designed to provide dependable earth fault protection in commercial, industrial and infrastructure electrical installations. As part of the trusted ABB F200 RCCB series, it protects people and equipment by detecting residual current faults while offering selective time-delayed operation for improved discrimination with downstream protective devices.
This Type A selective RCCB detects alternating residual currents and pulsating DC residual currents generated by modern electrical equipment. Its 40 A rated current and 500 mA residual operating current make it ideal for upstream protection where coordinated tripping helps maximise system availability.
Featuring a compact four-pole DIN rail mounted design, the F204 A S-40/0.5 is engineered for three-phase electrical distribution systems requiring dependable protection, robust construction and selective operation. It is suitable for demanding industrial environments, switchboards and control panels.
Residual current circuit breakers continuously monitor the balance between live conductors and the neutral conductor. If earth leakage is detected, the RCCB disconnects the circuit to help reduce the risk of electric shock, electrical fires and damage to connected equipment.
The selective operating characteristic of the ABB F204 A S-40/0.5 provides delayed tripping compared with downstream RCCBs, improving discrimination and helping maintain continuity of service by isolating only the affected section of an installation.
| Current | 40 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | F200 RCCB Series |
| Model | F204 A S-40/0.5 |
| Manufacturer Part Number | 2CSF204201R4400 |
| EAN | 8012542784906 |
| Product type | Residual Current Circuit Breaker (RCCB) |
| Residual current type | Type A |
| Operating characteristic | Selective |
| Number of poles | 4P |
| Rated current | 40 A |
| Rated residual operating current | 500 mA |
| Rated operational voltage | 230 / 400 V AC |
| Rated 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 | 5 kA |
| Protection rating | IP20 terminals |
| Mounting type | DIN rail |
| Terminal type | Screw terminals |
| Neutral terminal position | Right |
| Dimensions (H × W × D) | 85 × 70 × 69 mm |
| Weight | Approx. 360 g |
| HS Code | 85363030 |
| Country of Manufacture | Italy |
The ABB F204 A S-40/0.5 provides selective residual current protection for three-phase electrical installations, helping isolate earth leakage faults while coordinating with downstream RCCBs.
The 500 mA residual operating current is the earth leakage level at which the RCCB is designed to disconnect the circuit.
Type A RCCBs detect alternating residual currents and pulsating DC residual currents generated by modern electronic equipment.
A selective RCCB provides intentional time-delayed operation to improve discrimination with downstream residual current devices, helping reduce unnecessary upstream power interruptions.
The RCCB mounts directly onto a standard DIN rail within distribution boards, switchboards and electrical control panels.
ABB F200 series residual current circuit breakers are trusted worldwide by electrical contractors, panel builders and industrial engineers for dependable earth fault protection, reliable operation and long service life.
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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...