It carries a 10 A rated current (at 50 °C) and a 30 mA earth-leakage sensitivity, with a curve B trip characteristic and a 10 kA breaking capacity at 230 V AC. The thermal-magnetic trip unit handles both overload and short-circuit protection, while the integrated earth-leakage detection covers ground faults.
The 10 A rated current sets the continuous load capacity — this RCBO is sized for lighting or general-purpose socket circuits drawing up to 10 A. The 30 mA earth-leakage sensitivity provides personal protection against indirect contact and is the standard threshold for socket-outlet circuits in many residential and commercial installations.
The toggle control provides ON/OFF indication, and the device can be padlocked with a 4 mm padlock. It is designed as an outgoer in the distribution board.
The A9D37810 is certified to BS EN 61009-1, the harmonized standard for RCBOs covering both overcurrent and residual current protection. The IP20 protection degree confirms it is touch-proof but not water-resistant — install inside a suitable enclosure. The tropicalisation class 2 indicates it can withstand higher humidity and temperature cycling typical of tropical climates.