What the ratings mean for fit
The Siemens SENTRON 3VA2110-5HL36-0JC0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to that ceiling. That flat thermal curve is unusual; most MCCBs start derating above 40 °C. For the panel builder, it means the 100 A rating holds in a warm enclosure without oversizing the frame. Interrupting capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. At 415 V — common for European industrial distribution — the 121 kA rating covers most transformer-fed fault levels without requiring current-limiting fuses upstream. The steep drop to 3.7 kA at 690 V means this frame is not intended for 690 V main feeders; it is a line-protection device for 400 V class systems. Dimensions are 181 mm high, 105 mm wide, 86 mm deep. The 105 mm width for a 3-pole 100 A frame is standard for Siemens SENTRON MCCBs; it fits the same panel cutout and DIN-rail footprint as other 3VA2 frames. The 86 mm depth leaves clearance for rear-connected busbars or a shunt-trip wiring channel.
Built-in accessories and lifecycle
This breaker ships with a shunt trip (STL) release and two HQ-rated auxiliary switches integrated — no separate add-on modules to order or install. The shunt trip allows remote tripping from a PLC or emergency-stop circuit; the auxiliary switches provide status feedback (open/closed/tripped) to the control system. There is no undervoltage release, no ground-fault monitoring, and no communication function on this variant.
Deployment context
Designed for line protection in 400 V class distribution panels — feeding downstream branch circuits, motor control centers, or sub-distribution boards. The 100 A frame with 187 kA interrupting capacity at 240 V makes it suitable for high-fault service-entrance applications where the available short-circuit current is substantial. Mounts on a DIN rail or panel-mount plate in a standard enclosure; the 86 mm depth keeps the breaker within typical 200 mm deep cabinet profiles.