The Siemens 3VA2010-5HL36-0KA0 is a 3-pole molded case circuit breaker from the SENTRON 3VA series, rated for line protection at 100 A continuous current (Iu) with an ETU320 electronic trip unit. It delivers 187 kA breaking capacity at 240 V AC — that figure drops to 121 kA at 415 V and 440 V, 79 kA at 500 V, and 3.4 kA at 690 V, so the voltage class of your distribution determines whether this breaker clears a fault without cascading upstream.
Breaking capacity and thermal derating
At 40 °C ambient the breaker carries its full 100 A; no derating needed up to 50 °C. Above that, it steps down: 96.25 A at 55 °C, 92.5 A at 60 °C, 88.75 A at 65 °C, and 85 A at 70 °C. If your panel runs hot — say near a drive cabinet or in a non-climate-controlled enclosure — factor that curve into the load schedule. The shunt trip (STL) release (order code 3VA9688-0BL33) is built in, so you can remotely trip the breaker from an emergency-stop circuit or a PLC output without adding external undervoltage gear. No auxiliary contacts are included — those are ordered separately if you need status feedback.
Physical fit and panel integration
Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep. That width is standard for a 3-pole 100 A frame in the 3VA platform — it occupies one 105 mm module on the DIN-rail or panel-mount footprint. Depth of 86 mm means it clears most 200 mm deep enclosures with room for wiring gutters.