The Siemens 3VA1116-6ED36-0KC0 is a 3VA1 IEC frame 160 molded case circuit breaker with a 160 A fixed rating and a 70 kA breaking capacity at 415 V (class H). It is a 3-pole unit configured for line protection with a TM210 thermal-magnetic trip unit — the overload protection is fixed at Ir = 160 A, and the short-circuit protection is fixed at Ii = 10 × In. The breaker includes an integrated shunt trip (STL) rated for 220–250 V DC or 208–277 V AC, plus two HQ auxiliary switches. Connection is via clamp terminals.
What the ratings mean for panel fit
The 70 kA Icu at 415 V puts this breaker in the high-breaking-capacity class (H) for the 3VA1 frame. That SCCR matters when coordinating downstream with a transformer or a large motor branch circuit where fault current can exceed 50 kA — it avoids cascading failure upstream. The TM210 trip unit means the thermal element is sized for a 160 A continuous load; there is no adjustment range on Ir or Ii, so the breaker is a fixed-drop-in replacement for a 160 A branch. The shunt trip allows remote tripping from an E-stop or safety PLC, common in conveyor or pump panel layouts.
Deployment context
This breaker mounts on a DIN rail or directly to a backplate in an IEC-style panel. The clamp connection accepts copper or aluminum conductors without lug kits, saving install time. The two HQ auxiliary switches provide independent status feedback for the open/closed position — one can feed a PLC input for remote indication, the other can lock out a contactor coil.