Rated 63 A with 500 mA sensitivity, Type A (pulsating DC and AC earth leakage), it fits 2-pole (2P) circuits on a DIN rail, occupying 4 modular pitches of 9 mm each (72 mm wide). It is designed for AC networks at 50/60 Hz, with operational voltage 230/415 V AC and insulation voltage 500 V AC.
63 A rated current means this block is sized for a 63 A MCB partner — suitable for main incomer or heavy sub-feed circuits in a distribution board. 500 mA sensitivity is a delayed or high-threshold earth leakage setting, typically used where the installation has high natural leakage (long cable runs, power electronics upstream) to avoid nuisance tripping. Type A detection covers sinusoidal AC and pulsating DC residual currents — the standard for most modern electronic loads. Voltage-independent tripping means the RCD operates without needing a power supply; it uses the fault energy itself to trip, so it works even if the neutral is lost.
The block is IP20 (finger-safe) but IP40 when installed in a modular enclosure — standard for distribution boards. The trip indicator gives local visual confirmation of a residual fault.