M54128L - EARTH LEAKAGE CURRENT DETECTOR
M54128L Features
* q lmprovement of ability against unwanted tripping due to Iightning -surge.
* Adopt the two times counting system.
* lmprovement of ability against needless action due to lightningimpulse. q lt is a possible that cope with lEC owing to mode change.
* Adopt the 1.5 times count
