What the ratings mean for fit
The Siemens SENTRON 3VA1163-6EF32-0DH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 63 A. Its breaking capacity scales with system voltage: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V. These are the maximum fault currents the breaker can safely interrupt at each voltage level — critical for verifying selectivity and SCCR headroom in the distribution panel. The thermal derating is minimal up to 50 °C (full 63 A), then drops to 60.48 A at 55 °C and 56.7 A at 70 °C, so a panel ambient above 50 °C requires a de-rate check against the connected load. The breaker includes an undervoltage release (UVR) as the auxiliary release design, and the auxiliary contact configuration is 2 auxiliary switches plus 1 trip alarm switch HQ. This means the breaker can signal its status and trip condition back to a PLC or control system without an add-on module. The front face carries IP40 protection — suitable for enclosed panel mounting, not for washdown environments.
Integration and deployment context
The 3VA1163-6EF32-0DH0 mounts on a DIN rail or panel-mount base in a distribution or motor control center. Dimensions are 130 mm height, 76.2 mm width, and 70 mm depth — a standard 3-pole MCCB footprint that fits most SENTRON panelboards. The operating temperature range is -25 °C to 70 °C, with storage from -40 °C to 80 °C. The latching endurance is rated at 15,000 cycles, which governs mechanical life in frequent-switching applications.