Part of the Schneider Electric Acti9 iID series, the A9Z12440 is a modular 4-pole Residual Current Circuit Breaker (RCCB) engineered for reliable earth fault protection in industrial and commercial electrical systems. This device is designed to safeguard personnel and equipment by rapidly disconnecting power when it detects an imbalance in current flow, indicative of an earth leakage fault. Its robust construction and adherence to stringent safety standards make it a critical component for preventing electrical shock and mitigating fire risks.

Technical details

• Series: Acti9 iID
• Poles: 4
• Rated Current (In): 40A
• Rated Residual Current (IΔn): 100mA
• Mounting Type: DIN rail
• Protection Type: Residual Current Circuit Breaker (RCCB)
• Tripping Characteristic: Type AC (sensitive to sinusoidal AC residual currents)
• Breaking Capacity (Icn): 6kA (Verify against manufacturer datasheet for specific voltage rating)

Applications & compatibility

The Schneider A9Z12440 is commonly specified for use in distribution boards and control panels within manufacturing facilities, data centers, and commercial buildings. It provides essential protection for circuits supplying machinery, lighting, and power outlets where the risk of earth faults is present. This RCCB is compatible with standard DIN rail mounting systems, facilitating straightforward integration into existing electrical infrastructure.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider A9Z12440 or contact our technical team for cross-reference assistance with compatible Acti9 components.