The Siemens SENTRON 3VA2163-5JQ32-0JA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection. It carries a continuous current rating of 63 A across the full ambient range from 40 °C through 70 °C — no derating needed up to that ceiling. Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The adjustable thermal-magnetic trip is set between 95 A minimum and 756 A maximum (the latter is the short-circuit release; the 63 A frame governs continuous load).
What the ratings mean for panel integration
The 63 A continuous rating is the number that governs your load schedule — this breaker is sized for a 63 A feeder or a large motor branch circuit. The 187 kA at 240 V is the interrupting rating you need for a high-fault service entrance; at 415/440 V the 121 kA still covers most industrial distribution. The 3.7 kA at 690 V is a reminder that this frame is not intended for 690 V primary protection — at that voltage the breaker is only good for low-fault sub-circuits. The adjustable trip range (95 A to 756 A) lets you coordinate with downstream devices without swapping the breaker body. Physical footprint: 181 mm tall, 105 mm wide, 86 mm deep. This is a standard-size SENTRON 3VA2 frame — it fits existing 3VA panel cutouts and busbar arrangements without modification. The shunt trip release (STL) is factory-installed, so you don't need to add a separate undervoltage or shunt accessory in the field.