It occupies 2 module spaces on a DIN rail, making it a compact choice for a final-circuit protective device in a distribution board.
The 20 A rating with a C characteristic means the device is designed to trip instantaneously at 5 to 10 times the rated current (100 to 200 A), which suits loads with moderate inrush, such as small motor circuits or lighting banks.
Deployment Context
The 2-module width (approx. 36 mm) means it fits alongside other modular devices in a row; plan for adequate heat dissipation when grouping multiple RCBOs — the manufacturer's derating guidelines apply above 40 °C ambient.