It carries a TM220 thermal-magnetic release — the first digit (2) indicates the thermal trip adjustment range, the second (20) the magnetic pickup multiplier. Rated 20 A continuously at 40 °C, it derates to 19 A at 60 °C and above, so in a warm enclosure you lose about 5 % headroom.
Breaking capacity by voltage — the real coordination number
This MCCB delivers 187 kA at 240 V, 121 kA at 415 V, 76 kA at 440 V, and 17 kA at 500 V. The steep drop above 440 V means the 500 V figure governs any 480 V or 500 V installation — 17 kA is still adequate for most low-fault industrial panels, but verify your available fault current at the point of installation. The 415 V rating (121 kA) covers the common European 400 V three-phase grid with substantial margin.
Maximum power loss is 12 W, which matters for thermal management in a densely packed enclosure.