What this MCCB carries and where it fits
The Siemens SENTRON 3VM1110-4EE36-0AA2 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, with a TM220 thermal-magnetic overcurrent release set at 100 A continuous (adjustable Ir 70–100 A) and a fixed short-circuit pickup Ii = 10 × In. It belongs to the 3VM1 IEC frame rated 160 A max, in switching capacity class S — meaning it delivers 76 kA at 415 V AC, the standard industrial distribution voltage in much of Europe and Asia. At 240 V AC the interrupting rating climbs to 121 kA, so it handles high-fault conditions on lower-voltage secondary circuits without cascading upstream.
Breaking capacity by voltage — what it means for coordination
The 3VM1110-4EE36-0AA2's interrupting ratings drop as line voltage rises: 121 kA at 240 V, 76 kA at 415 V, 53 kA at 440 V, and 11.9 kA at 500 V AC. That 11.9 kA at 500 V is the limiting figure for selectivity studies — if your upstream transformer or feeder can deliver more than that at 500 V, this breaker will not clear the fault alone. The 76 kA at 415 V is the IEC nameplate rating for class S; it matches the typical 50 kA–85 kA range for industrial switchboards, so it coordinates cleanly with a 100 A MCCB in a main-tie-main arrangement.
Thermal derating and operating range
Rated continuous current Iu is 100 A, and the breaker holds that rating from 40 °C through 50 °C ambient — no derating needed in a typical 40 °C panel. Above 55 °C it steps down: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, 91 A at 70 °C. The operating temperature range is -25 °C to +70 °C; storage range is -40 °C to +80 °C. Maximum power loss is 25 W, which matters for heat buildup in a sealed enclosure.
Termination and panel fit
Main circuit connection uses box terminals, front-connected — standard for panel-mount MCCBs. The front IP40 rating means the breaker face is protected against tools and small wires, but the body is not sealed; mount it inside a distribution cabinet, not in a washdown zone. No auxiliary contacts are included (0 CO contacts), and no motor drive or neutral conductor retrofit is offered on this variant.