What this MCCB carries and where it fits
The Siemens SENTRON 3VA1010-4ED36-0BH0 is a 3-pole molded case circuit breaker rated for a continuous current Iu of 100 A, with a TM210 thermal-magnetic overcurrent release and line protection profile. Its interrupting capacity reaches 121 kA at 240 V AC and 75.6 kA at 415 V AC, which means it can clear high-fault currents on industrial distribution panels without cascading upstream — a key spec for main or feeder breaker duty in 400 V class switchgear. The 800 V rated insulation voltage (Ui) confirms it is suited for 690 V line-to-line systems where the 11.9 kA rating applies. The breaker includes an undervoltage release (UVR) as the integrated auxiliary trip, plus a 2 auxiliary switch + 1 trip alarm switch HQ configuration. The trip indicator is present, giving a local visual flag on the front face after a fault event. The front panel carries IP40 protection, suitable for enclosed panel mounting where the breaker is not directly exposed to washdown or dust ingress.
Thermal derating and panel integration
The 100 A rating holds flat from 40 °C to 50 °C ambient, then derates to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C. In a sealed enclosure with multiple breakers ganged, the 55 °C column is the realistic continuous limit unless forced ventilation is added. The operating temperature range spans -25 °C to 70 °C, with storage from -40 °C to 80 °C. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a 3-pole MCCB footprint that fits standard Siemens SENTRON mounting bases and busbar systems.