SENTRON 3VA1 MCCB — 16 A, 3-Pole, Line Protection with UVR
It carries a continuous current rating of 16 A at 40 °C, derating to 15 A at 60 °C and above — the thermal curve stays flat through 55 °C, so no derating penalty in a typical 50 °C panel ambient. Three-pole configuration, fitted with a TM240 thermal-magnetic release. Breaking capacity is the headline here: 187 kA at 240 V AC, 121 kA at 415 V, 75.6 kA at 440 V, and still 17 kA at 500 V and 690 V.
Width 76.2 mm (3 in), depth 70 mm, height 130 mm. Standard 3-pole MCCB footprint. Rated insulation voltage 800 V, so it can sit in a 690 V distribution bus without derating the insulation path.