The Siemens SENTRON 3VA2110-6JQ42-0AA0 is a 4-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Its breaking capacity peaks at 242 kA at 240 V and holds at 187 kA through 415–440 V, then drops to 121 kA at 500 V and 3.7 kA at 690 V. The line-protection design means the thermal-magnetic trip curve is tuned for cable and busbar protection rather than motor or generator circuits — pair it with a separate overload relay if feeding a motor load.
The 4-pole width (140 mm) matches the common 4-module MCCB slot; verify the busbar pitch and lug kit if retrofitting into a panel originally built for a different brand.
Ground-fault and communication capability
This variant includes ground-fault monitoring via summation current formation on L + N conductors and has a communication function for remote trip indication and power monitoring. No undervoltage release or trip indicator on this order code.