SENTRON 3VA2163-5HN36-0JA0 — 63 A MCCB with shunt trip, line protection duty
The Siemens 3VA2163-5HN36-0JA0 is a 3-pole SENTRON molded case circuit breaker rated for 63 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Breaking capacity runs 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. That 187 kA at 240 V gives serious fault-clearing headroom for low-voltage distribution where available fault current runs high. The design is line protection (not motor or generator protection), so it's sized for feeder and main breaker roles in switchboards and panelboards. This variant includes a shunt trip release (STL) for remote tripping — useful in emergency-stop circuits or automated load shedding where a control signal needs to open the breaker independently of overcurrent conditions. No undervoltage release, no ground-fault monitoring, and no communication function on this order code; it's a straightforward thermal-magnetic line protection breaker with a remote-trip coil added. Dimensions are 105 mm wide by 181 mm tall by 86 mm deep — standard SENTRON 3VA frame size for 63 A. Mounts in a panel or enclosure on a mounting plate; the 3-pole footprint matches other 3VA breakers in the same current class, so a panel laid out for a 3VA1110-5ED36-0AA0 will accept this physically, though the ratings and accessories differ.
Breaking capacity and selectivity planning
The 187 kA at 240 V is the headline number, but the 121 kA at 415 V is the more common coordination figure for 400 V class distribution. At 690 V the breaking capacity drops to 3.7 kA — that's still adequate for most 690 V systems where fault current is typically lower, but verify against your transformer impedance and cable run. The 63 A rating holds steady through 70 °C ambient, so no temperature derating curve to apply in a warm panel.
Panel integration notes
Mounts on a standard SENTRON 3VA mounting plate in a switchboard or enclosure. The 105 mm width fits alongside other 3VA breakers for multi-pole or multi-feeder layouts. Shunt trip wiring requires a control voltage source — verify polarity and voltage rating per the release specification before energizing. No communication module or auxiliary contacts are included on this base variant; add them separately if remote status indication is needed.