What this 3VA2110-5HL36-0AD0 is and what it does
The Siemens SENTRON 3VA2110-5HL36-0AD0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, designed for line protection in distribution panels. It carries a rated insulation voltage of 800 V and delivers a breaking capacity of 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 — so the interrupting rating drops sharply above 500 V, which is the figure to check if your fault current is on a 690 V bus.
Key ratings and what they mean for fit
The 100 A continuous rating holds flat across the full ambient range from 40 °C to 70 °C — no derating curve to calculate for warm enclosures. The 3-pole design with three auxiliary switches (HQ type) gives you one spare signaling contact beyond the standard alarm and trip-indicator pair, useful for remote status on a PLC input. Power loss is 10 W maximum, which matters for thermal budgeting in a densely packed panel.
Physical fit and panel integration
Dimensions are 86 mm deep, 105 mm wide, and 181 mm tall — a standard MCCB footprint that drops into most SENTRON distribution blocks and panel-mount cutouts without re-drilling. The supplied basic switch is order code 3VA21105HL360AA0; the auxiliary switch assembly is pre-configured as three HQ switches, so no separate ordering for that function.