Operator Interfaces, Switches & Relays


Improving earth leakage protection for your motors

November 2006 Operator Interfaces, Switches & Relays

In line with industrial standards and demands, the modern electronic motor protection relay needs to improve the manner in which earth leakage protection is provided.

The setting of the earth leakage sensing level on the NewElec MA range of motor protection relays can now be set from 50 to 250 mA with trip time delays that may be adjusted from 100 to 1000 ms.

In addition, the NewElec MA range earth leakage sensing design also filters out harmonics. This provides a more stable platform to enhance both safety and less likelihood of nuisance trips.

For more information contact Luc Dutrieux, NewElec, +27 (0) 12 327 1729, [email protected] or visit www.newelec.co.za



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