








🛡️ Stay Shock-Safe, Stay Ahead!
The Schneider Electric Residual Current Circuit Breaker Active 9 IID 4P 40A 30mA Type A (A9Z21440) is a high-performance safety device designed for 4-pole power systems. With a robust 40A rated current and ultra-sensitive 30mA leakage detection, it offers superior personal and fire protection. Certified to European EN 61008 standards and crafted by Schneider Electric, this compact, hand-operated breaker ensures reliable, long-lasting electrical safety for both commercial and personal use.












| ASIN | B00DE3XVEM |
| Batteries | Nonstandard Battery batteries required. |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 543,264 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,220 in Circuit Breakers |
| Colour | 40 amps |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,782) |
| Date First Available | 13 Jun. 2013 |
| Included Components | Residual current circuit breaker FI circuit breaker ACTI9 |
| Item Package Quantity | 1 |
| Item Weight | 373 g |
| Item model number | A9Z21440 |
| Manufacturer | Schneider Electric |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | A9Z21440 |
| Plug profile | DIN Rail Mount |
| Power Source | Hand-operated |
| Product Dimensions | 5.4 x 8.2 x 9.5 cm; 373 g |
| Size | 4 Polig |
| Style | Residual current circuit breaker |
| Usage | Commercial and personal use |
| Voltage | 500 Volts |
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