It carries a 20 A rated current across the 40 °C to 55 °C ambient range, derating to 19 A at 60 °C and above — so in a warm enclosure you lose 1 A, not a full trip curve shift. The 3-pole construction handles three-phase circuits up to 800 V insulation voltage (rated value). Breaking capacity is the headline here: 220 kA at 240 V AC, 154 kA at 415 V, 121 kA at 440 V, and it still holds 17 kA at 500 V and 690 V.
Switching and accessory fit
The basic switch designation is 3VA11206EF320AA0; the order code suffix -0JH0 adds the shunt trip and the auxiliary switch configuration.
The MCCB measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without surprises.