What this breaker is and what the ratings mean for fit
The Siemens 3VM1110-4EE42-0AA0 is a 4-pole molded case circuit breaker from the 3VM1 family, built on an IEC frame 160. Its headline rating is Icu = 36 kA at 415 V AC — that is the maximum short-circuit current it can safely interrupt at that voltage without damage. For a buyer specifying panel protection, that 36 kA at 415 V puts it in breaking capacity class S, meaning it is sized for commercial and light industrial distribution boards where the prospective fault current stays under that threshold. The thermal-magnetic release is TM220: overload protection Ir is adjustable from 70 A to 100 A (set at 100 A as In), and the magnetic short-circuit pickup Ii is fixed at 10 × In, so it trips instantaneously at 1000 A. The N conductor is unprotected — the neutral pole is switched but not monitored for overcurrent, which is standard for 4-pole line protection where the neutral is not a load-carrying conductor.
Compliance and documentation
RoHS compliant since 01-06-12. REACH Article 33 duty to inform applies: the part contains Lead (CAS-No. 7439-92-1) above 0.1% w/w, per the current candidate list. Export control is AL: N / ECCN: N, so no special licensing is required for cross-border shipment. Packaging dimensions are 150.00 × 119.00 × 116.00 mm, single piece per unit.