What it is and what it does
The Siemens 3VA1163-6GD42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current across a 4-pole configuration, designed for line protection in distribution panels. The TM210 thermal-magnetic trip unit handles overload and short-circuit response without external control wiring — it's a self-contained overcurrent release, so no auxiliary power or communication module is needed for basic protection. Rated insulation voltage is 800 V, and the front face carries IP40 protection, meaning it's sealed against tools and small solids but not water spray; keep it inside a panel enclosure.
Breaking capacity — what the numbers mean for your line
This MCCB's interrupting capacity varies sharply with system voltage: 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. That 220 kA figure at 240 V means it can safely clear a fault current that high without welding contacts or rupturing the case — useful for high-fault service entrances or transformer secondaries. At 690 V the 17 kA rating is still substantial but demands coordination with upstream devices; don't assume the 220 kA number applies across all voltages. The 63 A continuous rating holds steady from 40 °C up to 50 °C, then derates to 58 A at 70 °C — so if the panel runs hot, you lose 5 A of headroom.
Physical fit and panel integration
The 3VA1163-6GD42-0AA0 measures 70 mm deep, 101.6 mm wide, and 130 mm tall. That 70 mm depth is shallow enough to clear most standard 200 mm deep enclosures with room for wiring gutters. The 101.6 mm width (4 inches) fits a standard 4-pole MCCB footprint on the DIN rail or panel-mount plate. No undervoltage release, no ground-fault monitoring, and no communication function on this variant — it's a straight thermal-magnetic breaker with no add-on accessories installed from the factory.