The Siemens 3VA1110-6EF36-0CC0 is a 3-pole IEC frame 160 MCCB with a 70 kA interrupting capacity at 415 VAC — class H on the 3VA1 platform. That 70 kA rating means it can safely clear a fault up to that level without cascading upstream, which matters when you're coordinating downstream feeders in a panel. The thermal-magnetic trip unit is TM240 with ATAM, adjustable overload protection from 70 A to 100 A and short-circuit pickup from 5 to 10 times In. It ships with an undervoltage release (UVR) rated 120-127 V AC 50/60 Hz and two HQ auxiliary switches, all terminated with clamp connections.
What the Ratings Mean for Fit
The 70 kA @ 415 V breaking capacity (class H) places this breaker in the high-interrupting tier of the 3VA1 family. In a typical 400 V industrial panel, that gives you headroom for high-fault installations like transformer secondaries or large motor control centers where the available fault current exceeds 50 kA. The adjustable overload band (70-100 A) lets you dial in the exact motor FLA or feeder load without swapping trip units — useful when the BOM calls for 100 A but the actual draw is 85 A. The UVR drops the breaker on loss of control voltage, which is standard for emergency-stop chains or undervoltage protection schemes in European-style panels.
Panel Integration
Clamp connections on the line and load terminals accept copper conductors without lug kits — saves a step during panel build. The two HQ auxiliary switches provide form-C contacts for status feedback to a PLC or SCADA, and the UVR coil is wired separately to a 120-127 V AC control circuit. Mounts on a standard DIN rail or direct panel surface via the 3VA1 mounting base.