What the ratings mean for fit
The 3VA2163-6HN36-0JH0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling, which simplifies panel thermal budgeting. Its 3-pole construction and line-protection design make it a straight fit for feeder or main breaker duty in a 3-phase distribution panel. Breaking capacity is the headline: 242 kA at 240 V AC, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V. That 242 kA figure at 240 V means it can interrupt fault currents up to that level without cascading upstream — critical for high-fault installations like transformer secondaries or large motor control centers. At 690 V the capacity drops to 3.7 kA, so verify the available fault current at that voltage level before specifying. Dimensions: 86 mm deep, 105 mm wide, 181 mm high. The 105 mm width is standard for a 3-pole MCCB in this class — fits most DIN-rail or panel-mount footprints without requiring a wider sub-feed section.
Built-in accessories and wiring
Factory-fitted with 2 auxiliary switches plus 1 trip alarm switch (HQ type) and a shunt trip release (STL). The auxiliary switches provide status feedback for PLC or indicator lamps; the shunt trip allows remote tripping from an E-stop or safety relay. No undervoltage release is included — if you need UVR for machine safety circuits, that would be a separate order. The basic switch is order code 3VA2163-6HN36-0AA0, which means the breaker core is a standard line-protection unit; the -0JH0 suffix adds the auxiliary and shunt-trip options. Power loss is 4 W maximum — negligible for thermal coordination inside a sealed enclosure.