Unmarked leads 3 phase motor

Thread Starter


Joined Dec 20, 2020
The label reads
S# 311P872
Fr K56
Type A
Ser GJ72
Type FS
Ser factor 1.15
Code J
Hrs. Cont
Insulation Class B*
RPM 1425/1725
Hz 50/60
Volts 208-240/440-480
Ph 3
Amp 4.7/2.35
HP 1 1/2

I assume the illegible smaller label is the wiring diagram.
This motor was used to power a small air compressor,
I wired this motor over 10 years ago. Some of the wire labels were missing then.
I have no clue how I went about wiring the motor originally. I had wired my small machine shop and
barn for 3 phase.
The wires are all black and used the scheme of 1T 1P through 6T 6P.
A tree pulled down my power line and in process of upgrading my electrical system here I stand.
I find many posts about identifying leads of all versions of 6 lead motors and 1 instruction for 12 lead delta but this I have not found the answer.