AEG FI-Schutzschalter FN440/A300 4P Typ A 40A 300mA RCCB

The AEG FI-Schutzschalter FN440/A300 is a high-quality residual current circuit breaker (RCCB) designed for reliable protection against electric shock and fire hazards. With 4 poles, Type A sensitivity, and a rated current of 40A, this device is ideal for commercial and industrial applications where AC and pulsating DC residual currents may occur.

Advantages

This RCCB offers robust protection with a rated residual operating current of 300mA, ensuring safety in circuits with high leakage currents. Its compact 4-module design fits standard DIN rail enclosures, saving space in distribution boards. The device complies with IEC/EN 61008-1 standards, guaranteeing performance and reliability.

Suitable for

• Commercial buildings requiring Type A RCCB protection
• Industrial installations with mixed AC and pulsating DC loads
• Upgrades of existing distribution boards to meet modern safety standards

Key specifications

• Product Type: Residual Current Circuit Breaker (RCCB)
• Number of Poles: 4-Pole
• Rated Current (In): 40 A
• Rated Residual Operating Current (IΔn): 300 mA
• Type of Residual Current: Type A (AC and pulsating DC)
• Rated Voltage (Un): 400 V AC
• Rated Frequency: 50/60 Hz
• Rated Conditional Short-Circuit Current (Icn): 10 kA
• Mounting Type: DIN Rail
• Modular Width: 4 Modules (70 mm)
• Degree of Protection: IP20 (Terminals)
• Operating Temperature Range: -25°C to +55°C
• Terminal Type: Screw Terminals
• Standards: IEC/EN 61008-1
• Tripping Characteristic: Instantaneous

Recommendations

For optimal safety, pair this RCCB with a compatible MCB or RCBO from the same series. Ensure proper installation by a qualified electrician.