What this breaker is built for
The Siemens 3VA1196-5ED42-0AA0-ZD00 is a 4-pole IEC frame 160 circuit breaker with a 55 kA breaking capacity at 415 V (class M), fitted with a TM210 thermal-magnetic trip unit. Overload protection is fixed at Ir = 16 A, and short-circuit protection is set at Ii = 20 × In (320 A). The N conductor is unprotected, and the unit includes a nut keeper kit for DC Power OEM applications in China. This is a line-protection breaker sized for distribution panels where high fault current capacity is needed without adjustable trip settings.