ABB F204ACS-40/1 4 pole selective Type AC residual current circuit breaker with 40 A rated current and 1 A sensitivity for commercial and industrial electrical protection.
£239.58
The ABB F204ACS-40/1, also known as F204 AC S-40/1, is a professional 4 pole residual current circuit breaker (RCCB) designed to protect electrical installations against earth fault currents. As part of the trusted ABB F200 selective RCCB series, it provides reliable upstream residual current protection for commercial, industrial and infrastructure electrical systems.
This RCCB provides Type AC residual current protection, making it suitable for detecting alternating sinusoidal residual currents. Its selective S-type operating characteristic introduces a time delay, helping improve discrimination with downstream residual current devices and reducing unnecessary interruption of the wider electrical installation.
With a 40 A rated current, 1 A residual operating current and 4 pole configuration, the ABB F204ACS-40/1 is ideal for upstream protection in three phase distribution boards, industrial switchboards and commercial installations where coordinated earth leakage protection is required.
Residual current circuit breakers monitor the current balance between conductors and disconnect the supply when residual earth leakage current is detected. This helps protect electrical systems against insulation faults and supports safer operation of commercial and industrial installations.
The ABB F204ACS-40/1 provides selective Type AC residual current protection, making it suitable for upstream installation where coordination with downstream devices is important. Its delayed tripping characteristic helps maintain continuity of service by allowing downstream protection to operate first where appropriate.
| Current | 40 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | F200 Selective |
| Model | F204 AC S-40/1 |
| Product ID | 2CSF204901R5400 |
| Product type | Residual Current Circuit Breaker (RCCB) |
| Rated current | 40 A |
| Rated residual operating current | 1 A |
| Residual current type | Type AC |
| Operating characteristic | Selective (S) |
| Number of poles | 4 |
| Rated voltage | 230/400 V AC |
| Frequency | 50 / 60 Hz |
| Standards | IEC/EN 61008, UL 1053 |
| Mounting type | DIN rail |
| Product net width | approx. 70 mm |
| Product net height | approx. 85 mm |
| Product net depth | approx. 69 mm |
| Weight | approx. 0.36 kg |
It is used to provide selective Type AC residual current protection in commercial, industrial and three phase electrical installations.
The ABB product ID is 2CSF204901R5400.
The ABB F204ACS-40/1 has a 40 A rated current.
This model provides 1 A residual current sensitivity, commonly used for upstream fault protection and selective earth leakage protection.
Selective S-type operation introduces a controlled time delay, helping coordinate protection with downstream RCCBs and reducing unnecessary supply interruptions.
ABB F200 selective residual current circuit breakers are trusted by electrical contractors, panel builders and industrial engineers for dependable earth leakage protection, robust construction and coordinated performance across demanding electrical installations.
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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...