The Siemens SENTRON 3VA1020-4ED36-0BH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 20 A continuously at 40 °C and derating to 19 A at 70 °C. Its interrupting capacity hits 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V — so the SCCR you need for a 480 V panel is well covered, and it still holds up on 690 V drives.
The 20 A rating holds flat from 40 °C to 55 °C, then drops 1 A per 5 °C step to 19 A at 70 °C. That thermal curve means you can load it to nameplate in a warm enclosure without derating early — the headroom is built in. The UVR means the breaker drops out on loss of control voltage — standard for safety circuits where you want fail-safe disconnection. No ground-fault monitoring is built in; that's handled externally if needed.
Footprint is 76.2 mm wide, 130 mm tall, 70 mm deep — a standard 3-pole MCCB envelope that drops into most SENTRON or third-party distribution blocks without panel modifications.