It is rated for 63 A continuous current, 30 mA residual sensitivity, and 400 V AC supply voltage. Type B detection means it responds to AC, pulsating DC, and smooth DC fault currents — essential on circuits with variable-frequency drives, UPS systems, or PV inverters where pure AC-sensing RCCBs would miss a DC fault. The short-time delay (selective / S-type characteristic) prevents nuisance tripping from transient surges or inrush currents, so it coordinates downstream with standard RCCBs in a distribution panel.
Snap-on DIN rail mount for standard 4-pole modular enclosure width. The 63 A rating suits main incoming or sub-main protection in commercial or industrial sub-distribution boards where both AC and DC residual risks exist.