What this MCCB carries and where it fits
The Siemens 3VA1163-5GE46-0AA0 is a 4-pole SENTRON molded case circuit breaker rated at a continuous 63 A, with a TM220 thermal-magnetic overcurrent release designed for line protection. The interrupting capacity is 187 kA at 240 V AC, stepping down to 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V — figures that govern selectivity coordination downstream. The 63 A rating holds flat from 40 °C through 50 °C, then derates to 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C; if the panel ambient runs above 50 °C, size the upstream feeder for the derated value, not the nameplate.
Physical fit and panel integration
The 3VA1163-5GE46-0AA0 measures 130 mm high, 101.6 mm wide, and 70 mm deep. The 4-pole width (101.6 mm) is the critical dimension for DIN-rail or mounting-plate space — verify the existing panel layout has that slot free. Front-face protection class is IP40, meaning tools and fingers are kept out but the breaker is not sealed against washdown; it belongs in an enclosed panel, not exposed to hose spray. Power loss at rated current is 17.3 W maximum. In a densely packed enclosure, that heat must be factored into the thermal budget.
Sourcing and compliance
The 3VA1163-5GE46-0AA0 is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time. Compliance documentation for this series covers RoHS, REACH, and the relevant IEC/UL standards for molded case circuit breakers. The front IP40 rating and the 800 V rated insulation voltage align with standard requirements for industrial panel installation.