The Siemens SENTRON 3VA1163-5ED32-0KA0 is a 3-pole molded case circuit breaker (MCCB) rated 63 A at 40 °C, designed for line protection in distribution panels. It carries a TM210 thermal-magnetic overcurrent release and an integrated shunt trip (STL) auxiliary release for remote tripping. The 187 kA breaking capacity at 240 V gives it headroom for high-fault installations — that rating means it can safely interrupt a short-circuit current up to 187 kA without welding contacts or cascading failure upstream.
Ratings and what they mean for fit
The 63 A rating holds flat from 40 °C through 50 °C, then derates to 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C. That means in a warm enclosure — say 55 °C ambient — you still get 62 A continuous, not a forced downsizing. The 800 V rated insulation voltage (Ui) confirms it is suitable for 480 V and 600 V class systems with margin. Breaking capacity drops with voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V. For a 480 V panel, the 75.6 kA figure is the one that governs SCCR coordination — verify it exceeds the available fault current at the point of installation. Power loss is 17.3 W maximum — relevant for thermal budgeting inside a sealed enclosure with multiple breakers ganged together.
Integration notes
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. The shunt trip (STL) allows remote opening via a control signal, useful for emergency-stop circuits or automated load shedding. No undervoltage release is fitted on this variant.