SENTRON 3VA2325-8KQ32-0AA0 — 250 A MCCB with Communication and Ground-Fault
The Siemens SENTRON 3VA2325-8KQ32-0AA0 is a 3-pole molded case circuit breaker rated for 250 A continuous current at 40–70 °C, with an adjustable overcurrent trip range from 375 A to 3000 A. Its interrupting capacity reaches 440 kA at 240 V, 330 kA at 415 V, and 52.5 kA at 690 V — numbers that matter when coordinating downstream fault levels in a distribution panel. This breaker includes a communication function and ground-fault monitoring via summation current formation on the L-conductor, making it suitable for networked power distribution where remote trip indication and earth-leakage visibility are required.
Lifecycle and Sourcing
The 3VA2325-8KQ32-0AA0 is listed as current production. For BOM-line commitment, availability and current pricing are confirmed at quote time against an RFQ through independent distribution.
Dimensions and Panel Fit
At 248 mm high, 138 mm wide, and 110 mm deep, this MCCB occupies a standard 3-pole molded-case footprint. The 110 mm depth (4.33 in) is a key dimension for enclosure depth clearance — verify the panel's back-can depth before committing the cutout.
Key Ratings and What They Mean
The 250 A continuous rating holds flat across 40–70 °C ambient (no derating needed in a warm enclosure). The adjustable trip range of 375–3000 A covers most feeder and main applications; the 3000 A maximum sets the short-time withstand capability, not the continuous load. Interrupting capacity of 440 kA at 240 V and 330 kA at 415 V gives headroom for high-fault installations (e.g., near large transformers). At 690 V the rating drops to 52.5 kA — still adequate for most 690 V motor circuits but verify against the available fault current.