EATON PXF-40/4/03-B interruttore differenziale, 40A, 4 poli, 300mA, tipo B 300300

The EATON PXF-40/4/03-B is a Type B residual current device that responds to AC, pulsating DC, and smooth DC residual currents, making it suitable for circuits with rectifiers or frequency converters. Its 300 mA sensitivity and 40 A rated current suit it to industrial distribution boards where higher leakage levels are expected.

Highlights

• Rated residual operating current: 300 mA
• Rated current: 40 A, 4-pole
• Type B tripping for AC, pulsating DC, and smooth DC residual currents
• Rated voltage: 230/400 V AC, 50/60 Hz
• DIN rail mounting, 4 modules wide

In daily use

The PXF-40/4/03-B mounts on a standard DIN rail and occupies 4 modules (70 mm). The front face includes a test button and a position indicator for quick status checks. Terminals accept solid or stranded conductors from 1.5 to 35 mm².

Full specifications

• Series: PXF
• Rated residual operating current (IΔn): 300 mA
• Rated current (In): 40 A
• Number of poles: 4
• RCD type: B
• Rated voltage (Un): 230/400 V AC
• Rated frequency: 50/60 Hz
• Short-circuit withstand capacity (Inc): 10 kA
• Surge current withstand capacity: 3 kA
• Degree of protection: IP20 (terminals), IP40 (front)
• Operating temperature range: -25 to +40 °C
• Terminal capacity: 1.5 - 35 mm² (solid/stranded)
• Tripping characteristic: Instantaneous
• Standards compliance: IEC/EN 61008-1, IEC/EN 61008-2-1
• Module width: 4 modules (70 mm)
• Test button: Yes
• Indicator: Position indicator (ON/OFF)

Final note

The PXF series is engineered for reliable residual current protection in commercial and industrial installations, with Type B sensitivity covering a wide range of fault current waveforms.