3UA50-40-1K, Siemens, bimetal thermal overload relay, World Series, type 3UA, rated for 8-12.5 amps, suitable for 3TF30, 3TF31, 3TF40, 3TF41, 3TD40, 3TE40, 3TB40, 3TB41 contactors
Part no.: 3UA50-40-1K
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