The S802U-K15: Availability is confirmed at quote time through independent distribution channels. Submit an RFQ for current pricing and lead time — this is not a surplus or last-time-buy situation, so the supply chain is the normal factory-to-distributor pipeline.
The S800 platform is designed for selective coordination downstream of a larger MCCB or upstream of smaller MCBs. The K-curve's magnetic trip threshold (typically 8–12× In) means it rides through the starting current of a small motor or a heavily inductive solenoid without nuisance tripping, but clears a bolted fault faster than a B- or C-curve breaker at the same ampacity. For a data-center cooling pump or a compressor feeder, that's the right balance — you don't want a nuisance trip on a soft start, but you do want fast clearing on a phase-to-phase fault.