Its TM210 thermal-magnetic release means the thermal element handles overloads and the magnetic element handles short-circuit events, with a fixed magnetic trip threshold set at 210 A (10× the 20 A frame). The interrupting capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, 76 kA at 440 V, and still 17 kA at 500 V and 690 V. The 20 A continuous rating holds flat from 40 °C through 55 °C (no derating needed in a warm enclosure), then drops to 19 A at 60 °C and above.
Panel integration and wiring notes
The TM210 release is non-interchangeable; if the application needs a different trip curve or rating, you step to a different 3VA variant rather than swapping the trip unit in the field.
Electrical ratings that govern the selection
Maximum rated operational voltage with DC is 600 V, so this 4-pole breaker can also serve in DC combiner boxes or battery circuits if the poles are series-connected per the Siemens manual. No undervoltage release, no shunt trip, no ground-fault monitoring, and no communication module are fitted on this variant — it is a straight thermal-magnetic line-protection device with auxiliary contacts only.