10
Federal Signal
signaling.fedsig.com
Leads connected to the terminals shall be insulated for the appropriate voltage, and this insulation shall extend to within
1 mm of the metal of the terminal throat.
The G-SND terminal block is supplied with two conductors per pole. The terminal block allows for easy supply-in and
loop-out wiring to connect sounders in series.
Tools needed:
•
3.0 mm A/F hexagon key
•
No. 1 Phillips
®
screwdriver
•
Wire stripper
Wiring the Ex de Models
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.
To wire the Ex de models:
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).
NOTE:
When using more than one single or multiple strand lead, 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.
3.
To connect wires, press the button on the terminal block with a Phillips screwdriver and insert the wire into the
round opening. Release the button to make the connection.
4.
Follow the instructions starting below for your line voltage and continue to Step 5 on page 8. Refer to Figure 6 on
page 6 for the voltage selector switch and the tone chart on page 9.
Figure 8 Connections for DC or AC Ex d e sounder
Alt04
Alt03
Alt01
L1/+
L2/-
Alt02
Alt04
Alt03
Alt01
L1/+
L2/-
Alt02
220-240 Vac operation (no remote switching of tones)
a.
Connect the line (hot) power-source wire to the position marked L1/+ on the terminal block.
b.
Connect the neutral (common) power-source wire to the position marked L2/- on the terminal block.
c.
Connect the ground wire to the position marked Alt01 on the terminal block.
120 Vac operation (no remote switching of tones)
a.
Connect the line (hot) power-source wire to the position marked L1/+ on the terminal block.
b.
Connect the neutral (common) power-source wire to the position marked L2/- on the terminal block.
c.
Connect the ground wire to the position marked Alt01 on the terminal block.
