What it is and what the ratings mean
The Siemens 3VA1116-6EE42-0AA0-ZD00 is a 4-pole IEC frame 160 circuit breaker from the 3VA1 line, rated for line protection with a TM220 thermal-magnetic trip unit. The headline breaking capacity is 70 kA at 415 V (class H), which means it can safely interrupt fault currents up to that level without upstream damage — critical for high-fault panel positions where a standard 36 kA breaker would cascade into the main. Overload protection is adjustable from 112 A to 160 A via the Ir dial; short-circuit pickup is fixed at 10 x In (1600 A). The N conductor is unprotected (solid neutral), so this is a 3-pole protected + 1-pole solid-neutral configuration, typical for 3-phase + N systems where the neutral does not require overcurrent protection.
Where it goes and how it mounts
This breaker snaps onto a standard DIN rail inside a panel or enclosure. The nut keeper kit is included for DC Power OEM applications in China — that kit retains the terminal nuts during wiring, a small detail that saves time when building multiple panels. The 160 A frame and 4-pole footprint need about 4 x 45 mm of DIN width per pole; plan for adequate side clearance to the enclosure wall for cable bending radius on the line and load terminals.
Compliance documentation
As a current-production Siemens 3VA series breaker, this part carries IEC 60947-2 certification for circuit-breaker performance. Siemens provides the standard declaration of conformity (CE), plus RoHS and REACH compliance documentation on request. UL/CSA listings are not stated for this specific variant, likely because the nut keeper kit and DC Power OEM designation target the China market; verify with the order desk if a UL 489 listing is required for your jurisdiction.