Siemens 3VA1 IEC frame 400 circuit breaker, 3-pole, breaking capacity class H Icu=70kA @ 415V, TM240 ATAM, In=400A, overload protection Ir=280A...400A, short-circuit protection Ii=5...10 x In, nut keeper kit for DC Power OEM in China.
The TM240 ATAM trip unit gives you an adjustable overload protection range Ir=280 A to 400 A (the In=400 A rating), so you dial in the exact continuous current for your load — a 300 A feeder gets Ir=300 A, not a fixed value. Short-circuit protection Ii is adjustable from 5 to 10 times In, meaning 2000 A to 4000 A magnetic pickup.
The 3VA1340-6EF32-0AA0-ZD00 has a breaking capacity class H with Icu=70kA at 415 V, which is the maximum short-circuit current it can safely interrupt.
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
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