Circuit breaker 3VM1120-3EE42-0AA0 — 25 kA @ 415 V, 4-pole, TM220
The Siemens 3VM1120-3EE42-0AA0 is a 4-pole IEC frame 160 circuit breaker from the 3VM1 series, rated for line protection with a thermal-magnetic TM220 trip unit. Its 25 kA breaking capacity at 415 V (class N) means it can safely interrupt fault currents up to that level without upstream cascading — a key coordination point for panel builders sizing the main breaker. Overload protection is adjustable from 14 A to 20 A (Ir), and short-circuit protection is fixed at 16 x In (320 A). The N conductor is unprotected, so this breaker is intended for 3-phase + N systems where the neutral is not switched or protected — typical in European-style distribution panels. The nut keeper kit is included, simplifying DIN-rail or panel-mount installation in enclosures where captive hardware saves assembly time.
Lifecycle and compliance
RoHS compliant since 01-06-12. REACH Article 33 disclosure: lead (CAS-No. 7439-92-1) above 0.1% w/w in the current candidate list. No export restrictions (AL: N / ECCN: N).