Product Brochure

Every GCM plug and connector is
equipped with two (2) sets of red and
green LEDs to help indicate multiple
potentially hazardous wiring condi-
tions. The LEDs have been oriented
approximately 180° apart so they’re
visible from any angle.
A combination of one, both, or no
lighted LEDs at all will indicate any
one of the seven (7) different wiring
conditions listed below.
LED
Indication
GREEN LED
Properly wired and
grounded
RED LED
Open ground or
reversed polarity
NO LED
Open hot or open
neutral or hot and
ground reversal
** These devices have been listed by UL as a circuit test suitable for
determining ground continuity and power status only.**
GREEN AND RED LEDs – Hot and ground
reversal (250V models only)