The Siemens 3VA4160-6ED34-0AA0 is a 3-pole SENTRON molded-case circuit breaker rated 60 A at 40 °C ambient, with a TM210 thermal-magnetic trip unit designed for system protection — meaning it handles branch-circuit fault interruption and overload protection in a distribution panel, not motor-starting duty with high inrush. At 600 Y/347 V it still holds 25 kA. It's a straight-ahead overcurrent protector for a fixed-load feeder or a lighting panel where you don't need selectivity tuning.
Thermal derating — real panel ambient, not the nameplate
At 50 °C it's 58 A; at 60 °C it's 55 A; at 70 °C it's 53 A. Front protection is IP40 — sealed against tools and fingers, not against dust ingress. In a cement plant or grain-handling environment, mount it in a gasketed enclosure; the breaker itself won't keep cement dust out of the mechanism. That covers unheated warehouses and outdoor cabinets in most climates, but the derating curve is the binding limit once the breaker is loaded.
Maximum power loss is 13.9 W at rated load. That's low enough for dense panel layouts, but if you're stacking five of these in a row, account for the heat in the enclosure sizing calculation.