It's rated 63 A at 230/400 V AC, 50 Hz, with a 500 mA type AC residual trip — meaning it detects sinusoidal AC fault currents only, not pulsed DC or smooth DC. That 500 mA threshold is a higher trip level than the typical 30 mA or 100 mA units, so it's suited for circuits where nuisance tripping from normal leakage (long cable runs, industrial heaters, VFD line filters) would be a problem — think sub-distribution boards or feeder circuits, not socket-outlet final circuits that need 30 mA personal protection.
Snaps onto DIN rail (REG profile) and occupies three width units (about 54 mm). Installation depth is 70 mm — check your enclosure depth before committing. Mounting position is any, which helps when you're cramming gear into a tight panel. IP20 rating applies only when the distribution board is installed with connected conductors — it's an open-back device, not a standalone enclosure.