Megger PSI410 Phase Sequence Indicator Megger 1001 612 The Megger PSI410 phase rotation indicator provides rapid indication of correct phase sequence utilising a three bi coloured LED display and a specific audible tone Clockwise rotation is indicated by clockwise rotating green LEDs with a continuous tone and counter clockwise rotation has counter clockwise rotating red LEDs and a warbling tone Fused test leads croc clips and prods are provided the prods are insulated to leave less than
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