What this MCCB brings to the panel
The Siemens SENTRON 3VA2163-5JP32-0AC0 is a 3-pole molded case circuit breaker rated for 63 A continuous current at 40 °C. It carries a 187 kA interrupting rating at 240 V, dropping to 121 kA at 415 V and 440 V, then to 79 kA at 500 V, and 4.25 kA at 690 V — so it handles high-fault utility feeds at common distribution voltages without cascading upstream. The ETU550 electronic trip unit gives you adjustable long-time and short-time pickup and delay plus instantaneous protection, with a communication function for remote monitoring. It's a line-protection version, meaning it's set up for feeder or main breaker duty, not motor circuit protection.
Mounting and integration
This breaker measures 105 mm wide, 181 mm tall, and 86 mm deep — a standard 3-pole MCCB footprint that bolts into a SENTRON panelboard or a standalone enclosure. IP40 on the front means it's protected against tools and small wires entering from above, but it's not sealed against washdown; mount it inside a cabinet if the environment is dusty or wet. The 2 auxiliary switches (HQ type) give you position feedback for PLC or status lamp wiring without adding a separate accessory block.