![Schneider A9Z21240 Residual Current Circuit Breaker iID, 2P, 40A, 30mA, Type A [Energy Class B]](https://m.media-amazon.com/images/I/51R7ce5oKsL.jpg)







⚡ Stay protected, stay ahead — power safety redefined!
The Schneider A9Z21240 Residual Current Circuit Breaker iID is a high-performance 2-pole, 40A device with 30mA ground fault sensitivity, designed to provide advanced electrical safety in both commercial and personal settings. Featuring IEC/EN and VDE certifications, it offers reliable fault detection, easy tool-free installation on DIN rails, and clear mechanical indicators for instant status checks. Its modular design supports auxiliary modules for enhanced monitoring, making it a smart, future-proof choice for modern electrical protection.






| Manufacturer | Schneider Electric |
| Part Number | A9Z21240 |
| Product Dimensions | 10.5 x 8.6 x 5 cm; 222 g |
| Item model number | A9Z21240 |
| Size | 40 Ampere |
| Colour | 40 Amps |
| Style | 2-pin |
| Voltage | 230 Volts |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Measurement System | Metric |
| Plug profile | DIN Rail Mount |
| Certification | iec, ma |
| Special Features | Maximum temperature: -25 - 60 °C., Nominal intensity: 40 A. |
| Usage | Commercial and personal use |
| Included Components | Residual current circuit breaker FI switch ACTI9 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 222 g |
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