The Siemens SENTRON 3VA2440-6HL32-0KH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 400 A at 40 °C and holding that rating through 50 °C before a gentle thermal derating curve begins — 384 A at 55 °C, 376 A at 60 °C, 368 A at 65 °C, and 360 A at 70 °C. This means the breaker delivers its full nameplate current across the typical panel ambient range; the derating only matters if you are packing it into a sealed, high-temp enclosure. Breaking capacity is the headline here: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 40 kA at 690 V. The overcurrent release is an ETU320 electronic trip unit — adjustable thermal-magnetic or fully electronic depending on the variant, here configured for line protection.
Panel integration — dimensions and mounting
Dimensions: 248 mm height, 138 mm width, 110 mm depth. Maximum power loss is 63.5 W — relevant for thermal management inside a sealed enclosure.
As a Siemens SENTRON product, the 3VA2440-6HL32-0KH0 carries the standard compliance suite: CE marking for the European market, UL/CSA listings for North America (verify the specific UL file number for your jurisdiction), and RoHS/REACH declarations available through Siemens Industry Online Support.