What this breaker carries
The Siemens 3VA1125-5ED42-0AA0-ZD00 is a 4-pole IEC frame 160 molded-case circuit breaker rated for 25 A continuous, with a fixed thermal-magnetic trip (TM210) and a short-circuit protection pickup of 12.8 x In. The interrupting capacity sits at 55 kA at 415 V — breaking capacity class M — which means it clears high-fault currents in a 400 V distribution panel without cascading upstream. The neutral conductor is unprotected on this variant, and it ships with a nut keeper kit for DC Power OEM applications in China.