Siemens 3VA1120-3EF32-0BA0 — SENTRON MCCB, Line Protection with Undervoltage Release
It carries a rated current of 20 A across the ambient temperature range of 40 °C to 55 °C, derating to 19 A at 60 °C through 70 °C (cites:,). The interrupting capacity reaches 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V (cites:,).
The breaker occupies 76.2 mm width, 130 mm height, and 70 mm depth — a standard 3-pole MCCB footprint for 160 A frame sizes (cites:,).
The 3VA1120-3EF32-0BA0 is in active current production (cites:).
As a SENTRON series device, this MCCB is designed to meet IEC 60947-2 and UL 489 standards for molded case circuit breakers. The manufacturer provides a declaration of conformity covering CE marking, RoHS compliance, and REACH registration — documentation is available upon request for quality documentation control.