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I recall a custoemr's plant where a bank of these was driving materail handling conveyors in a dusty packaging hall, and they needed something that wouldn't trip thermal overloads under a heavy payload when ambient temps climbed in summer.
The cast iron housing on these YE3s is what it does—it sheds heat better than rolled steel and holds up to debris kicked up from production lines, and for a few facilities we've seen them in, that IP55 rating handles washdown cycles without a problem so long as the seals aren't compromised.
You're looking at 380V to 460V across 50 or 60 Hz, power runs form 0.75kW up to 315kW, and the speed options are 750, 1000, 1500, or 3000 rpm depending on your pole count (2, 4, 6, or 8). Basically, most buyers go with the 4-pole 1500 rpm for pump or fan work since it's a sweet spot for direct online starting.
We typically have these in stock for teh 0.75-30kW range, but for larger frames give or take 20 working days on lead time since they're built to order—though if you need a COA with HPLC purity data for the insulation side, our company can pull that from the batch record.
Actually, one thing to know is these aren't great for variable frequency drive appliction without an inverter-duty rating—they'll run on a VFD, but you'd want to derate the power by about 10% or so to avoid overheating at low speeds.
