CAT II series

The second series of CAT instruments utilizes the latest technological enhancements for safe and fast testing, with unique technical capabilities for additional diagnostics of circuit breakers. Sophisticated design ensures efficient and reliable operations in high-voltage substations and industrial environments.

CAT35 CAT64A CAT65 CAT66 CAT124A CAT125 CAT126
Main contacts timing channels 3 6 6 6 12 12 12
Preinsertion resistor contacts timing channels 3 6 6 6 12 12 12
Auxiliary contacts timing channels 6 6 6 6 6 6 6
Coil control yes yes yes yes yes yes yes
Coil current measurement channels 4 4 4 4 4 4 4
Analog input channels 4 4 4 4 4 4 4
Transducer input channels 3 3 3 3 3 3 3
Thermal printer (built-in) OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL
“First trip” test yes yes yes yes yes yes yes
Contact resistance measurement 200 A no 200 A 500 A no 200 A 500 A
Dynamic resistance measurement 200 A no 200 A 500 A no 200 A 500 A

YES-YES, NO-NO, OPTIONAL-OPTIONAL

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