Siemens 3VA1 IEC frame 160, breaking capacity class S, 3-pole, 20A fixed thermal-magnetic, 36kA Icu @ 415V, line protection TM210, FTFM, nut keeper kit for DC Power OEM in China.
The thermal-magnetic trip unit is fixed: overload protection Ir is set at 20 A (non-adjustable), and the short-circuit protection Ii is fixed at 16 x In (320 A instantaneous pickup).
The nut keeper kit (included per the order-code suffix) is intended for DC Power OEM builds in China — it retains the terminal nuts during vibration or transport, a detail that matters if the breaker ships as part of a pre-wired assembly rather than a loose spare.
The Icu (ultimate breaking capacity) is 36 kA at 415 V AC, class S on the IEC frame 160 platform.
This part is sourced to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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