It carries no overload or short-circuit protection — this is a pure isolating and switching device, not a circuit breaker.
The 100 A continuous rating at 800 V insulation voltage (Ui) and 690 V AC / 600 V DC operational voltage (Ue) means this switch disconnector handles full-load motor branch circuits up to that current class. The 2 kA limited short-time withstand (1 s and 0.5 s) tells you it's designed to ride through downstream faults without welding contacts — but it must be backed by an upstream protective device that clears faults above that level. The 4-pole configuration with busbar connection on front terminals suits it for main incoming or distribution panels where a neutral pole is switched alongside the three phases.
Deployment context
The front terminal arrangement for busbar connection means it's designed for horizontal or vertical busbar systems in distribution boards, not for cable entry from the rear. The IP40 front protection is suitable for indoor panel installation where no washdown or dust ingress is expected.