It's not going to hit the efficiency numbers you'd see from a three-phase motor, that's the main thing you need to know upfront—single-phase inherently has a ceiling around 82% for the larger models, and the smaller ones dip to about 66%. But what it does is deliver starting torque that's 2.2 to 3 times the nominal, which is actually better than most single-phase options for getting a compressor or pump spinning from a dead stop.


So you're looking at a YC series motor built for 220V, 50Hz, with a cast iron housing and 100% copper windings—it's not a lightweight plastic unit. The totally enclosed design keeps dust and debris out, which matters if it's going into a workshop or near a gearbox. We've got 2-pole, 4-pole, and 6-pole versions, so you can match the RPM to whatever you're driving, roughly 3000, 1500, or 1000 rpm give or take.

Power factor runs from 0.74 on the smaller end up to 0.95, and it uses y-δ starting to manage the inrush current—basically a capacitor start, capacitor run setup that keeps teh noise low. Most buyers go with the 4-pole 1.5KW for pumps, but we've had people order the 7.5KW for bigger gearbox application without issues.

Anyway, the mounting dimensions follow IEC standerds, so swapping out an old motor usually takes a few hours. One detail you wouldn't think to ask: the terminal box is positioned on top, not the side, which makes wiring easier if your conduit comes form above. It's not suited for continuous-duty variable speed applications—that's not what this does.


We carry stock on the common sizes (0.37KW to 3KW typically), but the 5.5KW and 7.5KW may need a lead time of 20 days or so—confirm before ordering. COA and CCC certifcation are available per batch, and we can do OEM/ODM on the nameplate or paint color if your volume justifies it.