What this 100 A MCCB does for a panel
The Siemens 3VA2110-8JQ36-0AA0 is a 3-pole SENTRON molded case circuit breaker rated for 100 A continuous current, sized for line protection in distribution panels. Its interrupting capacity hits 440 kA at 240 V and still delivers 330 kA at 415 V — meaning it can handle high-fault scenarios downstream of a large transformer without cascading failure. The 800 V rated insulation voltage gives headroom for 480 V or 600 V class systems.
Interrupting capacity across the voltage range
Interrupting capacity is not a single number on this breaker — it varies with system voltage. At 240 V the 3VA2110-8JQ36-0AA0 clears 440 kA; at 415 V and 440 V it holds 330 kA; at 500 V it drops to 220 kA; at 690 V it still manages 52.5 kA. The 100 A rating holds steady from 40 °C through 70 °C ambient — no derating needed across that span.
Panel fit and integration
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep — a standard SENTRON 3VA footprint that fits existing panel cutouts and busbar layouts. It includes a communication function for integration into monitoring or energy-management systems, and the ground-fault monitoring version uses summation current formation on the L-conductor. No undervoltage release or trip indicator is fitted on this variant.