Why aren't 200v rated motors for use on 208v common?

[Electric-Light]

The common standard low voltages are:

240/120 split single ph
240 Delta
208Y/120
480Y/277
600Y/347 in Canucka

Motors are always rated at about 96% of nominal voltage, but it seems like 208v ones are rated at 208v. Why is this?

Common motor ratings are 115(for 120v), 230(for 240v), 265(for 277v PTAC compressors and such), 460(for 480v) and 575(Canadia)

Some motors are rated 208-230v, but not usually 200-230. I've never seen one rated 200-230 or 208-240. They're usually 208-230.

 

[Jraef]

There are indeed 200V rated motors. but the "cheap way out" for a motor mfr is to design the motor for 220V +- 15%. That's what they call the 208-230V motors, because they can accept 187 - 253V which covers the range and they only have to build one motor design.

 

[Electric-Light]

There are indeed 200V rated motors. but the "cheap way out" for a motor mfr is to design the motor for 220V +- 15%. That's what they call the 208-230V motors, because they can accept 187 - 253V which covers the range and they only have to build one motor design.

Many are from Japanese manufacturers like Sanyo, Daikin etc, where nominal voltage is 200v.