The TM220 thermal-magnetic trip unit provides overload protection adjustable from 280 A to 400 A (Ir) and a fixed short-circuit pickup at 10 x In (Ii = 4000 A). This is a standard motor-circuit or feeder breaker; the 400 A frame suits main incomer or large subfeed duty in industrial distribution.

Siemens 3VA1340-4EE32-0AA0-ZD00 Circuit Breaker, 400A, 36kA
Siemens 3VA1 IEC frame 400 circuit breaker, 3-pole, breaking capacity class S, Icu=36kA @ 415V, TM220 line protection, ATFM, In=400A, overload Ir=280A...400A, short-circuit Ii=10 x In, nut keeper kit for DC Power OEM in China.
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Frequently asked questions
Where can I buy 3VA1340-4EE32-0AA0-ZD00 and get a price?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial response.
What are the key ratings of this circuit breaker?
It is a 3-pole IEC frame 400 breaker with 36 kA breaking capacity at 415 V (class S), TM220 thermal-magnetic trip, overload protection adjustable from 280 A to 400 A, and fixed short-circuit pickup at 10 x In.