It's the part you grab when you need a manual disconnect that doubles as an isolation point — the toggle gives positive break indication, and it's certified for isolation per EN/IEC 60947-3.
The 50 A rating in AC-22A and AC-23A utilisation categories means it handles both resistive and moderately inductive loads — think distribution panels, motor disconnects on smaller drives, or heater banks. Short-time withstand (Icw) of 900 A for 1 s tells you it can ride through a fault long enough for an upstream breaker to clear, which matters for selectivity coordination. The making capacity of 1.28 kA alone jumps to 150 kA when paired with an upstream circuit breaker — that's the real-world number for panel design.
Terminals accept crimp lugs from 2.5 to 120 mm² (copper or aluminium) or busbar connectors — so it's ready for both cable and busbar distribution in a panel. The contact position indicator and visible break (toggle) give a clear visual check during lockout/tagout.