These older Thermo KeyTek models offer lower costs and some options not available on our ECAT systems.

Part # Description Options Ind. Max V/I
587-1 IEEE 587 tester with 277v/16a coupler S1/S3 (ring) 6kV3kA
801-5 IEC 1000-4-5 & CCITT with 277v/16a coupler M801-5 6kV/3kA
S/S21 Plug-in converts a 587-Plus to an 801+ 10X700 6kV/3kA
S3B Bi-wave surge to 5kA 1.2X50 6kV/5kV