Safety Ground/ Ferrite Bead; Ac Supply Wiring - Simplex 4007-9101 Installation Manual

• In areas of high lightning activity, or in areas that have large power surges, use the 2081- 9027 or the 2081-9044 Transient Suppressor on monitor
points.
• Wires must not be run through elevator shafts.
• Only system wiring can be run together in the same conduit. When powering remote units using relay contacts, power for these circuits must be
provided by a PL power supply listed for fire-protective signaling use. An end-of-line (EOL) relay must be used to supervise the auxiliary power circuit.
• Connect the output of the EOL relay to cause a trouble. Wire in series with the EOL resistor on an available initiating device circuit (IDC) or individual
addressable module (IAM).

3.3.1 Safety ground/ ferrite bead

Correct operation and protection against transient energy in accordance with UL 864 and ULC-S527 require the connection of safety ground wire to
cabinet chassis. Connect the safety ground before wiring any other circuits to the panel. Ferrite beads must be attached to the incoming AC power line
as shown in Figure 8: Safety ground and ferrite bead on page 9. Wrap the line leg twice through a ferrite bead, and the neutral leg of the power
line twice through the other ferrite bead.
NOTE:
The ferrite bead should be installed as close as possible to where power enters the panel.

3.3.2 AC supply wiring

Adhere to the following guidelines when wiring AC Power. See
bead to the AC power wires.
• The AC power must be wired from a dedicated circuit breaker or fuse, rated no more than 20 A, in accordance with NFPA-72, NEC, and local codes.
• Before handling the AC feed, verify that it is not live using a voltmeter. Make sure the circuit is de-energized and tagged to prevent injury.
• The AC supply wiring must be 14 AWG minimum to 12 AWG maximum.
• Connect a 12 AWG copper ground wire from safety ground in the electrical distribution panel to the panel safety ground stud.
• Input voltage:
- 120 VAC, 50/60 Hz.
- 240 VAC, 50/60 Hz.
No configuration settings required to select.
Page 9
Fig 7: EOL relay diagram
Fig 8: Safety ground and
ferrite bead
Safety ground/ ferrite bead
4007ES and 4007ES Hybrid Fire Alarm Systems Installation Manual
on page 9 for information about attaching the ferrite
579-1102 Rev H