What this 3VA1 breaker carries
The Siemens 3VA1216-4EE42-0AA0-ZD00 is a 4-pole IEC molded-case circuit breaker on the 3VA1 frame, sized for 160 A continuous current with an interrupting rating of 36 kA at 415 V — that is the 'S' breaking capacity class, meaning it handles standard industrial fault levels without cascading upstream. Overload protection is adjustable via the TM220 thermal-magnetic trip unit: Ir from 112 A to 160 A, matching the conductor or load requirement. Short-circuit protection is fixed at Ii = 10 × In (1600 A magnetic pickup), so it clears bolted faults fast but rides through motor inrush.
The 4-pole body occupies roughly 140 mm of rail width — plan your gland plate and busbar takeoff accordingly. A nut keeper kit is included for DC Power OEM applications in China, which simplifies captive-fastener assembly during panel build.
Because it is a current-production part with a configurable suffix (the ZD00 OEM variant), lead times and pricing vary by configuration and quantity.