EATON PXF-63/4/03-S/B Residual Current Circuit Breaker, 63A, 4-Pole, 300mA, Type B Selective 300304

The EATON PXF-63/4/03-S/B distinguishes itself with selective tripping and Type B residual current detection, making it suitable for circuits with smooth DC residual currents, such as those with frequency converters or EV charging. Its time-delayed characteristic ensures coordination with downstream RCDs, preventing nuisance tripping and maintaining system availability.

Highlights

• Rated current 63 A, 4-pole, 300 mA residual current
• Type B selective (S/B) for AC, pulsating DC, and smooth DC residual currents
• Selective tripping with time delay for discrimination
• DIN rail mounting, 4 modules wide
• Short-circuit withstand capacity 10 kA

In daily use

Install this RCCB in distribution boards to protect circuits against residual currents while ensuring continuity of supply. Its selective behavior prevents upstream tripping, and the Type B detection covers modern loads with DC components. With a rated voltage of 230/400 V AC and a frequency of 50/60 Hz, it integrates into standard low-voltage installations.

Full specifications

• Number of poles: 4
• Rated current (In): 63 A
• Rated residual current (IΔn): 300 mA
• RCD type: Type B selective (S/B)
• Rated voltage (Un): 230/400 V AC
• Rated frequency: 50/60 Hz
• Short-circuit withstand capacity (Inc): 10 kA
• Mounting type: DIN rail
• Module width: 4 modules (70 mm)
• Degree of protection (terminals): IP20
• Operating temperature range: -25 to +40 °C
• Terminal capacity (solid/stranded): 1.5 - 35 mm²
• Standards: IEC/EN 61008-1
• Tripping characteristic: Selective (time-delayed)
• Residual current waveform detection: AC, pulsating DC, smooth DC
• Electrical life: ≥ 10,000 operations
• Mechanical life: ≥ 20,000 operations

Final note

The EATON PXF-63/4/03-S/B is engineered for reliable residual current protection in demanding electrical installations, where selectivity and Type B detection are essential.