The Siemens 3VA2163-5MN32-0CL0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for motor protection, carrying 63 A continuous at 40 °C and holding that rating through 50 °C — only dropping to 60.48 A at 55 °C and 56.7 A at 70 °C, so it handles warm enclosures without derating prematurely. Breaking capacity hits 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 17 kA at 690 V, which covers most industrial service-entrance and feeder applications where high fault current is expected. The ETU350M electronic trip unit enables phase-failure detection and adjustable protection curves, with an undervoltage release (UVR) built in.
The 3-pole frame accepts plug-in or fixed mounting; the undervoltage release (UVR) and auxiliary switch block are factory-integrated, so no field wiring of separate accessories is needed for the basic protection and signaling functions.
Electrical environment and approvals
Maximum power loss is 75 W.