Siemens 3VA2140-6HM32-0AA0 — 40 A SENTRON MCCB for Line Protection
Its 242 kA interrupting capacity at 240 VAC handles high-fault scenarios typical at the service entrance or main feeder — the kind of fault current that would weld a smaller MCCB's contacts shut. At 415 V and 440 V it still breaks 187 kA, dropping to 121 kA at 500 V and 3.7 kA at 690 V, so the voltage class of your system determines the available fault current it can safely clear.
Integration — Panel Fit and Mounting
The 3VA2140-6HM32-0AA0 measures 105 mm wide, 181 mm high, and 86 mm deep — a standard footprint for SENTRON 3VA frame sizes.
Poles: 3. Interrupting capacity: 242 kA at 240 VAC, 187 kA at 415/440 VAC, 121 kA at 500 VAC, 3.7 kA at 690 VAC. Insulation voltage: 800 V. Operating temperature: -25 °C to +70 °C. Storage: -40 °C to +80 °C.