Siemens 3VA1032-3ED32-0AA0 — 32 A MCCB for Line Protection
The Siemens 3VA1032-3ED32-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated 32 A continuous, 3-pole, designed for line protection — meaning it sits upstream of a load feeder or distribution panel, not on a specific motor or device. The TM210 thermal-magnetic release gives a fixed thermal trip curve and magnetic short-circuit pickup, so there's no adjustment dial to mis-set during commissioning. Breaking capacity runs 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V — that covers most industrial distribution panels where the available fault current is known and the system voltage lands in that range.
Thermal Derating and Panel Fit
The 32 A rating holds steady from 40 °C up to 50 °C ambient, then drops to 31 A at 55 °C and 60 °C, and 30 A at 65 °C and 70 °C. That's a gentle slope — you don't lose a full breaker size until you're past 65 °C, which is rare inside a ventilated enclosure. Dimensions are 70 mm deep, 76.2 mm wide, 130 mm high — a standard 3-pole MCCB footprint that drops onto a DIN rail or mounts directly to a backplate. Power loss at full load is 10.6 W, so heat buildup in a sealed panel is manageable.