Schneider Electric R9R22440 Fehlerstrom-Schutzschalter 3P+N 40A 30mA

Electrical faults can lead to dangerous leakage currents that standard circuit breakers cannot detect. The Schneider Electric R9R22440 residual current circuit breaker (RCCB) provides essential protection against electric shock and fire risks by instantly disconnecting the circuit when a residual current of 30 mA is detected. This 3-pole + neutral device is rated for 40 A and is suitable for residential, commercial, and industrial applications.

Who is it for

This RCCB is ideal for electricians, panel builders, and facility managers who need reliable earth leakage protection for three-phase circuits with neutral. It is commonly used in distribution boards to protect people and equipment in homes, offices, workshops, and light industrial environments.

Main features

• Type A residual current protection: detects AC and pulsating DC residual currents
• Rated residual current: 30 mA for personal protection
• Rated current: 40 A, suitable for many branch circuits
• 3P+N configuration: protects all three phases and neutral
• DIN rail mounting: easy installation in standard distribution boards
• Compact design: occupies 4 modules (72 mm width)
• High breaking capacity: 6 kA short-circuit withstand
• Wide operating temperature range: -25°C to +60°C
• Complies with IEC 61008-1 standard

Specifications

• Device type: Residual current circuit breaker (RCCB)
• Number of poles: 3P+N
• Rated current (In): 40 A
• Rated residual current (IΔn): 30 mA
• Residual current type: Type A
• Rated voltage: 230/400 V AC
• Frequency: 50/60 Hz
• Short-circuit breaking capacity (Icn): 6 kA
• Mounting: DIN rail
• Width in modules: 4 (72 mm)
• Degree of protection: IP20 (terminals), IP40 (enclosure)
• Operating temperature: -25°C to +60°C
• Standards: IEC 61008-1
• Connection: screw terminals
• Terminal capacity: flexible up to 35 mm², rigid up to 50 mm²
• Electrical durability: 10,000 cycles
• Mechanical durability: 20,000 cycles

Tips

Always test the RCCB regularly using the test button to ensure proper operation. For circuits with electronic loads that may produce smooth DC residual currents, consider a Type B RCCB. Install in a dry, dust-free enclosure to maintain the specified IP rating.