What this MCCB is and where it fits
The Siemens SENTRON 3VA2010-6JQ36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, designed for line protection in distribution panels and motor control centers. It carries a breaking capacity of 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V — the 690 V figure is the weak point to watch if your system runs at that voltage; the breaker still interrupts but at a much lower fault level. The 100 A rating holds flat across ambient temperatures from 40 °C to 70 °C, so no derating curve to calculate in a warm enclosure. Ground-fault monitoring uses summation current formation on the L-conductor, and the unit includes a communication function for integration with upstream monitoring systems.
Panel fit and dimensions
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep. That 86 mm depth is the dimension to check against your gland plate clearance or enclosure door — it's not a shallow unit. The 105 mm width is standard for a 3-pole MCCB in this class; it'll fit a typical DIN-rail or panel-mount footprint without surprises.
Key ratings at a glance
Continuous current: 100 A (adjustable from 20 A to 100 A full-scale). Insulation voltage rated at 800 V. Maximum power loss is 13.5 W — negligible for thermal budgeting in a panel. Operating temperature range is -25 °C to 70 °C; storage from -40 °C to 80 °C. No undervoltage release or trip indicator fitted on this variant.