SENTRON 3VA2163-5JQ32-0CA0 — 63 A MCCB with ETU560 and UVR
The Siemens SENTRON 3VA2163-5JQ32-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection. It carries a continuous current Iu of 63 A at 40 °C, holding that rating through 50 °C before derating to 60.6 A at 55 °C and 53.6 A at 70 °C. Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 4.25 kA at 690 V — giving it strong SCCR headroom for most industrial distribution panels. The ETU560 electronic trip unit handles the overcurrent protection logic. An undervoltage release (UVR) is integrated as the auxiliary release design, and the part includes a communication function for integration into higher-level monitoring or control schemes. The supplied basic switch is order code 3VA2163-5JQ32-0AA0; the integrated auxiliary trip is 3VA9608-0BB24.
Panel fit and integration
Dimensions are 181 mm height, 105 mm width, and 86 mm depth — a standard SENTRON 3VA frame size that mounts in common distribution panel footprints. The 3-pole form factor fits 3-phase line protection duty. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Maximum power loss is 6.5 W.
Key ratings and what they mean
The 63 A rating at 40 °C is the continuous current the breaker carries without tripping under normal conditions — sized for a 63 A feeder or as a main breaker in a sub-panel. The 187 kA breaking capacity at 240 V means it can safely interrupt a fault current up to that level without welding contacts or rupturing the case, which is critical for high-available-fault-current installations like large transformer secondaries. The ETU560 trip unit provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves — not a fixed thermal-magnetic, so coordination studies can be fine-tuned.