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Overcurrent protection for low-power current transformer SIPROTEC 7SJ81

Overcurrent protection for low-power current transformer SIPROTEC 7SJ81

The SIPROTEC 7SJ81 provides 4 low-power current transformer inputs and optionally 3 low-power voltage transformer inputs. With the same low-power current transformer (LPCT) a wide range of primary rated line currents can be covered. Objects with rated currents in the range of 20 A to 2500 A can be protected when using low-power current transform­ers.