The Siemens SENTRON 3VA1163-6GE42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated at a continuous 63 A, with a TM220 thermal-magnetic overcurrent release. It's designed for line protection in distribution panels, and the 63 A rating holds from 40 °C up to 50 °C ambient before derating begins — at 55 °C it's still 62 A, 60 °C drops to 61 A, and at 70 °C it's 58 A. That means in a warm enclosure you lose very little headroom.
Breaking capacity by voltage level
This MCCB delivers 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at both 500 V and 690 V. The steep drop above 440 V is typical for a frame this size — at 690 V the 17 kA still covers most industrial motor branch circuits, but if your fault current at that voltage exceeds 17 kA you need a higher-rated frame. At 240 V the 220 kA rating is exceptionally high, suitable for large transformer secondaries or high-capacity busway feeds.
Panel integration and physical fit
The breaker measures 130 mm high, 101.6 mm wide, and 70 mm deep. The 4-pole width (101.6 mm) is standard for a 63 A frame — verify the mounting footprint matches your existing DIN-rail or panel-mount cutout. Front protection is IP40, so it's suitable for enclosed distribution boards but not for washdown environments. Power loss is 17.3 W maximum, which matters for thermal budgeting inside a sealed enclosure.
What the TM220 release means for coordination
The TM220 designation indicates a thermal-magnetic release with a fixed thermal pickup and adjustable magnetic trip. This is the standard line-protection variant — no electronic trip unit, no communication function, no ground-fault monitoring. For selective coordination studies, the fixed thermal curve and magnetic threshold are documented in the Siemens 3VA manual. The insulation voltage rating is 800 V, so the breaker can be used in 690 V systems with adequate clearance.