Control Transformers CPT Series Introduction CIC’s CPT Series low-voltage single-phase control transformers are resin-cast for Class-A insulation. They are compact, economical, and easy to install. Suitable for use in machine tools as a control power transformer, this product can also be installed in low-voltage control panels as an auxiliary power source or as a potential transformer (voltage transformer) for measuring. Specifications • Standard: IEC or IEEE Wiring Diagrams • Phase: Single-Phase • Frequency: 50 or 60 Hz • AC/BIL: 3/- kV • Resin-cast for Class-A insulation. • Conformance with UL safety requirements and regulations. • Terminal covers included for protection against electrical shocks. • Highly resistant to moisture, heat, and dust — appropriate for use at highly polluted locations. • Both the primary and secondary windings can be connected either in series or parallel to provide or produce different voltages. • Other standards and specifications upon request. Selection Table * PT: Potential Transformer ** CTR: Control Transforme