SENTRON 3VA1150-5EE46-0AA0 — 4-pole MCCB, 50 A, 187 kA SCCR
The interrupting rating hits 187 kA at 240 V AC, dropping to 121 kA at 415 V and 75.6 kA at 440 V; at 500 V and 690 V it holds 17 kA. That SCCR headroom makes it a strong candidate for high-fault industrial distribution where selectivity with upstream breakers matters.
Rated current holds flat at 50 A from 40 °C through 50 °C, then drops to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. In a sealed panel with limited airflow, plan for the 70 °C derated value unless you can keep the ambient below 50 °C.
The breaker measures 101.6 mm wide, 130 mm tall, and 70 mm deep — a 4-pole footprint that fits standard SENTRON panel cutouts. Spring-cage terminals accept typical panel wiring; the depth of 70 mm (2.76 in) leaves room for rear busbar connections in a standard distribution cabinet.