Wiring The Ex De Models; 24 Vdc Models; Figure 12 Connections For Dc Or Ac Ex De Beacons - Federal Signal Global Serie Instrucciones De Instalación Y Mantenimiento

Installation and Maintenance Instructions

Wiring the Ex de Models

CIRCUIT BOARD DAMAGE: The DC beacons are polarity
sensitive, and MAY BE DAMAGED by incorrect electrical
hookup. When connecting the DC beacon to the voltage
supply lines, POLARITY MUST BE OBSERVED. In addition,
damage will result if the voltage rating of the particular model
is exceeded by more than 10 percent.
To wire the Ex de beacon:
1. Unscrew the four M4 socket-head cap screws and remove the
terminal box cover.
2.
Strip the wire insulation 8 mm to 9 mm (0.33 in).
When using more than one single or multiple strand lead,
NOTE:
the connection into either side of any terminal must be joined
in a suitable manner, e.g. two conductors into a single insulated
crimped bootlace ferrule.

24 Vdc Models

a. See Figure 12. Connect the positive (+) power source wire to
the terminal block pole marked
b. Connect the negative (
block pole marked

Figure 12 Connections for DC or AC Ex de beacons

18
L2/-
L1/+ L2/-
A
L1/+ L2/-
Model G-LED Global Series LED Beacon
/+.
L1
) power source wire to the terminal
▬
.
L3/Alt+ Aud+ Aud-
L3/Alt+ Aud+ Aud-
A