Schneider Electric A9Z21440 Residual Current Circuit Breaker (RCCB) 2P 40A 30mA AC Type White

The Schneider Electric A9Z21440 is a high-quality Residual Current Circuit Breaker (RCCB) designed for reliable protection against earth faults in residential and commercial electrical installations. With 2 poles, a rated current of 40 A, and a rated residual current of 30 mA, it ensures safety and compliance with international standards.

Advantages

This RCCB offers robust protection with a rated conditional short-circuit current of 6 kA and a rated residual breaking capacity of 500 A. Its compact design (72 mm x 91 mm x 73 mm) and clip-on mounting on DIN rail make installation easy. The wide operating temperature range from -40 to 85 °C ensures performance in extreme conditions.

Suitable for

• Residential electrical panels
• Commercial buildings
• Industrial control systems
• Protection against indirect contact and fire hazard due to earth faults

Key specifications

• Product Type: Residual Current Circuit Breaker (RCCB)
• Number of Poles: 2P
• Rated Current (In): 40 A
• Rated Residual Current (IΔn): 30 mA
• Residual Current Type: AC type
• Network Type: AC
• Rated Operational Voltage (Ue): 230 V AC 50/60 Hz
• Rated Impulse Withstand Voltage (Uimp): 4 kV
• Rated Conditional Short-Circuit Current (Inc): 6 kA
• Rated Residual Breaking Capacity (IΔm): 500 A
• Mounting Mode: Clip-on
• Mounting Support: DIN rail
• Number of 9 mm Pitches: 4
• Operating Temperature: -40 to 85 °C
• Storage Temperature: -40 to 85 °C
• IP Protection Level: IP20 (terminals), IP40 (enclosure)
• Electrical Durability: 10000 cycles
• Mechanical Durability: 20000 cycles
• Standards: EN/IEC 61008-1
• Colour: White
• Weight: 370 g
• Dimensions (W x H x D): 72 mm x 91 mm x 73 mm

Recommendations

For optimal safety, always use this RCCB in conjunction with a compatible MCB or RCBO. Ensure proper installation by a qualified electrician according to local regulations.