What this 3VA1 breaker carries
The Siemens 3VA1332-5GF42-0AA0-ZD00 is a current-production IEC frame 400 molded case circuit breaker from the 3VA1 series, rated for 320 A continuous and breaking 55 kA at 415 V (class M). The TM240 thermal-magnetic trip unit gives an overload adjustment range Ir = 224 A to 320 A, and the instantaneous short-circuit pickup Ii is set between 5 and 10 times In — so you can dial the protection band to match the cable and load without swapping trip blocks. Four-pole construction with 100 % N-conductor protection means the neutral pole is fully rated and trips with the phase poles — essential for TN-S or TN-C-S systems where an open neutral cannot be tolerated.
Where it fits in the panel
The 3VA1 frame mounts on a standard DIN rail or can be screw-fixed to a backplate; the nut keeper kit (included per the order-code suffix) simplifies DC Power OEM builds in China by retaining hardware during transport and vibration. At 55 kA Icu @ 415 V, this breaker coordinates cleanly with downstream 25 kA or 36 kA MCCBs in a selective system — the high interrupting capacity lets it serve as the main or tie breaker without cascading upstream.
Sourcing and lifecycle
This order code is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.