Q1. What does "1:1 ratio" mean, and why is it used in an isolation transformer?
A 1:1 winding ratio means the input and output voltages are identical ā in this case, both 120V. The transformer is not used to change voltage but to achieve complete electrical isolation between the supply and the load. This breaks any direct conductive path between the input AC line and the output circuit, eliminating shock hazards caused by ground-to-energized-conductor faults. It is a standard safety measure in medical, industrial, and marine power distribution systems.
Q2. Can this 8 kVA isolation transformer be configured for voltages other than 120V?
Yes. While the default configuration is 120V in and 120V out, both primary and secondary voltages are customizable. Supported options include 110V, 120V, 208V, 220V, 230V, and 240V on each side, covering both isolation-only (1:1) and voltage-converting (step-up/step-down) configurations. Please specify your required voltage pairing when ordering.