Figure 1
The 12C6 part of Amperite Figure 1 is a single-winding, variable wattage current transformer. This transformer is made up of two sets of six helically wound coils in series, each containing between 100 and 200 turns of 24 gauge wire. The transformer is quite small, measuring just 11 mm x 18 mm. Its core is made using a new high permeability ferrite material, giving it superior performance at low power levels, as well as excellent linearity and wide frequency response. Unlike some other designs, the 12C6 does not require a filter before the actual current transformer for accuracy. Its size makes it ideal for use in applications where space is limited, such as space heaters, or in current regulation or current protection circuits.