What this MCCB carries
The 3VA1163-5EF36-0AC0: Interrupting capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. That 187 kA figure at 240 V is high for a 63 A frame — it handles heavy fault-current scenarios common in industrial switchgear without cascading upstream. The TM240 overcurrent release is a thermal-magnetic type, fixed at 63 A. No undervoltage release, no ground-fault monitoring, no communication function — this is a straight line-protection breaker. Two HQ auxiliary switches ride along for status feedback.
Panel fit and integration
Dimensions: 130 mm high, 76.2 mm wide, 70 mm deep. The 76.2 mm width (3 inches) is standard for a 3-pole MCCB in this class — it occupies one 3-inch mounting slot in a SENTRON distribution panel or switchboard. Depth of 70 mm leaves room for rear busbar connections without crowding the gland plate. Power loss is 17.3 W maximum — modest for a 63 A breaker, so thermal management inside a sealed enclosure is straightforward. Insulation voltage rated 800 V, giving headroom for 690 V systems. Operating temperature range -25 °C to 70 °C; storage range -40 °C to 80 °C. The storage limit governs handling and warehousing, not running conditions.