MCCB for line protection — 20 A, 4-pole, TM210 release
Its breaking capacity reaches 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V — high enough to handle most industrial fault levels without cascading upstream.
The 20 A rating holds steady from 40 °C through 50 °C, then derates to 19 A at 60 °C and 70 °C — useful when the breaker sits inside a warm enclosure near other heat sources. Dimensions are 130 mm height, 101.6 mm width, 70 mm depth — fits standard panel cutouts for 4-pole MCCBs in the 20 A class.