we 77Supply. Connection terminals 11, 12. Rated voltage. 198 253 V AC ; 45 65 Hz. Power consumption approx. 3.5 VA. Input. Connection terminals 1Pepperl+Fuchs Process Automation WE 77EX-2 115V. Switch Isolator, 2 Channel, 1 Form C, OutputChannel, 110-115VAC, 129200. Mfr. Part #: WE 77EX