Line protection MCCB — 20 A, 3-pole, TM210 release
Interrupting capacity reaches 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V — enough for high-fault panelboards and distribution subfeeds where SCCR headroom matters. IP40 on the front suits clean indoor panel environments; the operating range spans -25 °C to 70 °C, with derating starting at 55 °C (19.2 A at 55 °C, dropping to 18 A at 70 °C).
The 3-pole form factor with 3 auxiliary switches occupies the same cutout as other SENTRON 3VA frame breakers, so a swap from a lower-rated sibling (e.g., a 10 A variant) requires no panel rework as long as the bus bars and lug kit match the 20 A rating.
Above 55 °C, derate linearly to 18 A at 70 °C. Interrupting capacity at 415 V (32 kA) is the figure most relevant for European 400 V distribution; the 240 V rating (52.5 kA) applies to North American split-phase or 240 V delta feeds.