This C6A current transformer is designed for operation line to line system. They are also able to operate for line to ground, or line to neutral at reduced voltage.
The core and coil assembly is encased in a thermoplastic shell and filled with resin.
This C6A current transformer is having stiff plastic case which is the insolated and fire retarded material. No metallic parts are exposed at the secondary terminals.
The C6A is waterproof with rubber grommet to take out 2 wire leads for at least 1-meter length.