Why Choose the ABB F204 A S-100/0.3 Residual Current Circuit Breaker?
The ABB F204 A S-100/0.3 is a high-performance 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 helps protect people, equipment and installations by detecting residual current faults and disconnecting the circuit when leakage current exceeds the rated threshold.
This Type A selective RCCB detects alternating residual currents and pulsating DC residual currents generated by modern electrical equipment. Its 100 A rated current and 300 mA residual operating current make it suitable for upstream protection in three-phase distribution systems where selective coordination with downstream residual current devices is required.
With its four-pole DIN rail mounted design, screw terminal connections and compact modular housing, the F204 A S-100/0.3 is ideal for professional switchboards, distribution boards and control panels requiring reliable residual current protection with delayed selective tripping behaviour.
Key Advantages
- Selective four-pole RCCB for three-phase electrical installations.
- 100 A rated current for higher-load commercial and industrial systems.
- 300 mA residual current sensitivity for installation-level earth fault protection.
- Type A residual current detection for AC and pulsating DC residual currents.
- Selective time-delayed tripping improves discrimination with downstream RCDs.
- DIN rail mounting for distribution boards, switchboards and control panels.
Key Features
- ABB F200 residual current circuit breaker series.
- Four-pole (4P) RCCB configuration.
- 100 A rated operational current.
- 300 mA rated residual operating current.
- Type A selective residual current protection.
- Suitable for 480 V AC electrical systems.
- DIN rail mounting with screw terminal connections.
- Compact four-module width for professional panel layouts.
Selective Earth Fault Protection for Three-Phase Distribution
Residual current circuit breakers continuously monitor the current balance between live conductors and neutral. If earth leakage is detected, the RCCB disconnects the protected circuit to help reduce the risk of electric shock, electrical fire and damage to connected equipment.
The selective operating characteristic of the ABB F204 A S-100/0.3 provides intentional delayed tripping, helping improve coordination with downstream residual current devices. This supports continuity of service by allowing downstream protection to operate first where appropriate.
Typical Applications
- Commercial electrical distribution boards.
- Industrial switchboards and control panels.
- Three-phase power distribution systems.
- Upstream residual current protection.
- Building services and plant room installations.
- Electrical systems requiring selective RCD coordination.
