Integrator's terse spec recap
The Siemens SENTRON 3VA1032-3ED36-0DH0 is a 3-pole molded case circuit breaker (MCCB) rated for 32 A continuous at 40 °C. Its interrupting capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — figures that govern the available fault current it can safely clear without upstream coordination failure. At 500 V and 690 V the rating drops to 7.5 kA, so verify the system voltage against the fault level before committing the BOM line. The breaker includes a built-in undervoltage release (UVR) and a trip indicator, plus two auxiliary switches and one trip alarm switch (HQ configuration). Rated insulation voltage is 800 V. Maximum power loss is 13.1 W. Deployment context: this MCCB mounts in a standard panel enclosure on a DIN rail or direct-mount plate. The 70 mm depth, 76.2 mm width, and 130 mm height fit a compact 3-pole footprint — check gland-plate clearance if retrofitting into a densely packed panel.
Thermal derating and operating range
The 32 A rating holds from 40 °C through 50 °C. At 55 °C it derates to 31 A, at 65 °C to 30 A, and at 70 °C to 30 A. Operating ambient range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. If the panel ambient exceeds 50 °C, the continuous load must be reduced accordingly.