What this 3VA1 MCCB delivers
The Siemens 3VA1196-6EE32-0AA0-ZD00 is a 3-pole IEC frame 160 molded case circuit breaker in breaking capacity class H, rated for a 70 kA interrupting capacity at 415 VAC. It ships with a TM220 thermal-magnetic trip unit, ATFM line protection, and a nut keeper kit specified for DC Power OEM applications in China. The overload protection is adjustable from 11 A to 16 A (In=16 A), and the short-circuit protection is fixed at 20 × In — meaning the instantaneous magnetic trip fires at 320 A. That 20× multiplier is typical for motor-starting applications where inrush current must pass without nuisance tripping.
Integration notes
The 3VA1 frame 160 mounts on a DIN rail or panel base and accepts standard Siemens accessory kits (auxiliary switches, shunt trips, undervoltage releases). The nut keeper kit is a mechanical retention feature for high-vibration DC power environments — verify it matches your enclosure's screw-torque limits before final torque-down.