Home / Products / El Core Transformers / CTR Series Transformers CTR SERIES TRANSFORMERS CONTROL TRANSFORMERS - SINGLE PHASE ( FOR INDUSTRIAL PURPOSE) PRIM : 0,415,440V Type No. Secondary Volts Max. Load Amps. Drawing Ref. CTR - 28 9 - 0 - 9 V 1.0 A11 CTR - 29 - do - 1.5 A12 CTR - 30 - do - 2.0 A14 ...