It carries a 160 A continuous rating at 40 °C, with the full thermal derating curve available: still 160 A at 50 °C, 158 A at 55 °C, and 150 A at 70 °C. That derating profile means you can run it near its nameplate in most ventilated enclosures without oversizing. Breaking capacity is the headline here: 75.6 kA at 240 VAC, 52.5 kA at 415 VAC, 32 kA at 440 VAC, and 11.9 kA at 500/690 VAC. That 75.6 kA at 240 V gives strong selectivity headroom on the secondary side of a 480 V–208Y/120 V transformer — a common panel feed scenario.
Accessories and integration
The basic switch variant is 3VA11163EF320AA0. The auxiliary and alarm switches give status feedback to a control system or SCADA input.
The depth is shallow enough that it clears most standard gland plates and backpanel wiring troughs.