| Item condition | New | 
| Manufacture name | F204 B-40/0.3 Residual Current Circuit Breaker 4P B type 300 mA | 
| Brand | ABB | 
| Categories | RCCB - (Residual Current Breakers) | 
| Harmonized System Code | 8536 3030 00 | 
| Voltage type | AC | 
| Rated current | 40 A | 
| Rated voltage | 400 V | 
| Rated insulation voltage Ui | 440 V | 
| Number of poles | 4 | 
| Leakage current type | B | 
| Selective protection | No | 
| Surge current capacity | 3 kA | 
| Short-time delayed tripping | No | 
| Frequency | 50/60 Hz | 
| Rated impulse withstand voltage Uimp | 4 kV | 
| Packing level 1 | 8012542342359 | 
| Packing level 2 | 8012542343950 | 
| Mounting method | DIN rail | 
| Built-in depth | 69.5 mm | 
| Pollution degree | 3 | 
| Width in number of modular spacings | 4 | 
| Explosion-proof | No | 
| Degree of protection (IP) | IP20 | 
| Connectable conductor cross section solid-core | 1-25 mm² | 
| With interlocking device | No | 
| Ambient temperature during operating | -25-70 °C | 
| Additional equipment possible | Yes | 
F204B-25/0,3 Residual Current Circuit Breaker 4P, 25A,300 mA type B