The Siemens 3VA2163-5HL36-0DL0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Breaking capacity hits 187 kA at 240 V AC, dropping to 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The UVR drops the breaker if control voltage falls below the dropout threshold — common in emergency-stop circuits or undervoltage protection schemes. The trip alarm gives a discrete signal when the breaker trips on fault, not just when manually opened.
Integration notes
The 3-pole body fits standard Siemens SENTRON 3VA2 mounting accessories — busbar kits, rear terminals, and door-coupling rotary handles share the same frame as other 3VA2 63 A variants. The auxiliary switch set (2 + 1 trip + 1 electrical alarm) occupies the left-side accessory slot; the undervoltage release fits the right-side slot.