Connecting To The Terminal Block; Preparing To Wire The Ex D Flameproof Models; Figure 9 Disengaging A Terminal Block Spring Clamp - Federal Signal Global G-SND Manual De Instalación Y Mantenimiento

Installation and Maintenance Instructions

Connecting to the Terminal Block

The terminal block for all models uses a spring clamp connection
to engage the wire. To disengage the clamp, insert the tip of the
screwdriver into the small openings near the top and press down. Insert
the stripped wire into the larger opening and remove the screwdriver to
engage the wire clamp.

Figure 9 Disengaging a terminal block spring clamp

Preparing to Wire the Ex d Flameproof Models

SHOCK HAZARD: To avoid electrical shock hazards, do not
connect wires when power is applied. Failure to observe this
warning may lead to serious injury or death.
CIRCUIT BOARD DAMAGE: The DC sounders are polarity
sensitive, and MAY BE DAMAGED by incorrect electrical hookup.
When connecting the DC sounder 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.
This section has wiring instructions for the flameproof models
G-SND 24 Vdc, 120 Vac, 220-240 Vac.
The maximum wire gauge is 2.5 mm (12 AWG). The wire must
2
be rated 85 °C or higher. Use only stranded cable to terminate the
sounder. The cross-sectional area of the primary earth (ground) must
equal the cross-sectional area of the phase conductor.
Model G-SND Global Series Sounder
15