Staco Energy Variable Transformers 1020CBT 120/240VAC Single Phase 0.98KvA 15SecStaco Energy Variable Transformers 1020CBT 120 240VAC Single Phase 0. 98kVA 15Sec The Staco Energy 1020CBT is a single phase variable transformer designed for applications requiring smooth and adjustable voltage control. With a capacity of 0. 98kVA and 15 second rated overload, it is suitable for test benches, power regulation, and industrial systems. Key Specifications Brand: Staco Energy Model: 1020CBT Input Voltage: 120 240 VAC Phase: Single Phase