Eaton PXF-40/4/05-A Residual Current Circuit Breaker (RCCB), 4-Pole, 40 A, 50 mA, Type A 236779

Electricians and panel builders install the Eaton PXF-40/4/05-A in distribution boards to protect circuits against earth leakage currents. This 4-pole RCCB interrupts the supply when a residual current of 50 mA is detected, reducing the risk of electric shock and fire. It is suitable for industrial and commercial installations where reliable fault-current protection is required.

Key specifications

• Rated current: 40 A
• Number of poles: 4
• Rated residual current: 50 mA
• Residual current type: A
• Rated voltage: 230/400 V AC
• Rated frequency: 50/60 Hz
• Mounting: DIN rail
• Module width: 4 modules
• Short-circuit withstand capacity: 10 kA
• Surge current withstand capacity: 250 A (8/20 µs)
• Terminal capacity: 1.5 – 35 mm²
• Operating temperature: -25 to +40 °C

Why choose it

The PXF-40/4/05-A provides dependable residual current protection in a compact 4-module housing. Its Type A tripping characteristic ensures detection of AC and pulsating DC residual currents, making it suitable for modern electrical loads.

Ideal use cases

• Protection of three-phase circuits in industrial control panels
• Earth leakage protection for commercial buildings
• Retrofit or new installations requiring 50 mA sensitivity

Good to know

The device is designed for DIN rail mounting and accepts solid or stranded conductors from 1.5 to 35 mm². It operates reliably within a temperature range of -25 °C to +40 °C.