It is considered necessary to set Earth Leakage Protection Relays to 30 mA in industrial environments. These current values are related to protection against direct contact. This type of protection is not applied to main and distribution panels. At these points, panel protection systems (IP) are used for direct contact protection.
The protection against indirect contact and the relay set value for this protection are set to currents above 30 mA, depending on the fault loop impedance value. As a result, a system is created where earth leakage protection systems will not cause unnecessary interruptions to operations.
CIRCUTOR offers complete solutions with its industrial-type earth leakage protection product range.
