The Siemens 3VA2225-5JP42-0AJ0 is a 4-pole IEC frame 250 molded-case circuit breaker with a 55 kA interrupting capacity at 415 V (class M). It carries an ETU550 electronic trip unit configured for LSI protection — overload (L) adjustable 100–250 A, short-time (S) 0.6–10× In, and instantaneous (I) 1.5–10× In. The neutral conductor protection is adjustable from OFF to 100% of phase rating. Two auxiliary changeover switches and one trip alarm switch are factory-installed. This is the variant you spec when the panel needs full selectivity downstream of a 250 A feeder and the fault current at the board is in the 55 kA range.

Siemens 3VA2225-5JP42-0AJ0 Circuit Breaker, 250A, 55kA @ 415
Siemens 3VA2 IEC frame 250, breaking capacity class M, Icu=55kA @ 415V, 4-pole, ETU550 LSI, In=250A, overload Ir=100A...250A, short-circuit Isd=0.6..10x In, Ii=1.5..10x In, N conductor adjustable, 2 AUX + 1 alarm switch.
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Frequently asked questions
How do I get current pricing and availability for 3VA2225-5JP42-0AJ0?
Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels.
What is the closest alternative to 3VA2225-5JP42-0AJ0 in this component family?
Within the 3VA2 IEC frame 250 family, the closest alternative would be a variant with a different ETU type or accessory configuration. No pin-compatible drop-in exists; verify the trip unit and auxiliary switch count against your BOM before substituting.
What compliance documentation does this brand provide for 3VA2225-5JP42-0AJ0?
Siemens provides RoHS, REACH, and UL/IEC compliance documentation for the 3VA2 series. Specific certificates are available on request with the RFQ.