Why Choose the ABB F204 B-125/0.03 Residual Current Circuit Breaker?
The ABB F204 B-125/0.03, also listed as F204 B-125/0.03-L, is a professional 4 pole residual current circuit breaker (RCCB) designed to protect people and electrical installations against earth fault currents. As part of the trusted ABB F200 series, it provides advanced residual current protection for commercial, industrial and specialist electrical systems.
This RCCB features Type B residual current protection, allowing detection of alternating residual currents, pulsating DC residual currents and smooth DC earth fault currents. This makes it particularly suitable for modern installations containing power electronics, variable speed drives, inverters, UPS systems and equipment that may generate DC residual currents.
With a 125 A rated current, 30 mA residual operating current and 4 pole configuration, the ABB F204 B-125/0.03 is ideal for higher load three phase distribution boards, industrial control panels, machinery circuits and installations requiring advanced Type B earth leakage protection.
Key Advantages
- Professional 4 pole RCCB for three phase electrical installations.
- 125 A rated current for higher load commercial and industrial circuits.
- 30 mA residual current sensitivity for additional protection against electric shock.
- Type B residual current protection for AC, pulsating DC and smooth DC fault currents.
- Suitable for installations with drives, inverters, UPS systems and power electronics.
- DIN rail mounting for straightforward installation in distribution boards and control panels.
Key Features
- ABB F200 residual current circuit breaker series.
- F204 B-125/0.03-L model designation.
- 125 A rated current.
- 30 mA residual operating current.
- 4 pole configuration.
- Type B earth leakage protection.
- Designed for smooth DC residual current detection.
- Compact modular format for DIN rail installation.
Advanced Type B Earth Leakage Protection
Residual current circuit breakers monitor the current balance between conductors and disconnect the supply when a residual earth leakage fault is detected. This helps reduce the risk of electric shock and supports safer operation of electrical installations.
The ABB F204 B-125/0.03 provides Type B residual current detection, making it suitable for applications where smooth DC fault currents may occur. This is especially important in installations with power electronics, variable frequency drives, rectifiers, UPS systems and renewable energy equipment.
Typical Applications
- Commercial electrical distribution boards.
- Industrial control panels.
- Higher load three phase power distribution systems.
- Variable speed drive and inverter installations.
- UPS, rectifier and power electronics circuits.
- Installations requiring Type B residual current protection.
