ZX Fire Alarm Control Panels
MORLEY-IAS
Installation Manual
Document No. 996-174-000-1, Revision: 01
Page 9
3.4 External
Connections
BEFORE INSTALLATION: Refer to Ratings / Type label located on the inside of the panel.
3.4.1 Mains Power Input
3.4.1.1
ZX1Se / ZX2Se Arrangement
The ZX1Se and ZX2Se Fire Alarm Control Panels receive power from either a 230V, 50Hz (or
120V, 60Hz-power supply
1
). The current flows through an EMI filter to the transformer. The
transformer converts the input mains voltage to a safe extra-low voltage (SELV). All of these
components are mounted to the chassis.
The incoming power feed cable Ground or Earth (Green or Green/Yellow) wire must be
connected to the terminal block protective earth connection – middle terminal.
Connect the neutral (Blue/Black) wire to the terminal marked ‘N’ and connect the Phase or Live
(Brown/Red) wire to the terminal marked ‘L’. The terminal block contains an integral fuse.
Open and lock out the
circuit breaker before
connecting any wiring. Do
not power the system until
the installation is
complete.
RE
L
A
Y 2
RELAY 2
COM
N/C
N/O
ISOLATE
ELSEWHERE
F1 T 2A H 250V
N
L
ISOLATE
ELSEWHERE
N
L
Fuse
Blue
Brown
Green/Yellow
Ferrite
Large
Affix cable tie
around wires
below ferrite
Maintain separation
between the 120/230V and
the low voltage wiring. Do
not route in the same
trunking and keep apart in
the enclosure.
For EMC Compliance, fit
the supplied Ferrite
Absorber (large) as shown
in the diagram.
Figure 5 – Mains Input Arrangement – ZX1Se / ZX2Se
The panel shall be supplied with AC mains power via a readily-accessible, disconnect device
(‘isolation’ switch) to facilitate servicing and be provided with suitable earth fault protection
incorporated in the building installation wiring. The minimum cross-sectional area of the
mains cable should be 0.75mm and the supply should be fused with a 5A HRC anti-surge fuse.
3.4.1.2 ZX5Se
Arrangement
The ZX5Se Fire Alarm Control Panel receives power from a 230V, 50Hz (or a 120V, 60Hz power
supply
1
). The current flows through an EMI filter and a chassis mounted fuse, to the transformer.
The transformer converts the input mains voltage to a safe extra low voltage. All of these
components are mounted to the chassis.
The incoming power feed cable Ground or Earth (Green or Green/Yellow) wire must be
connected to the terminal block protective earth connection – middle terminal.
Connect the neutral (Blue/Black) wire to the terminal marked ‘N’ and connect the Phase or Live
(Brown/Red) wire to the terminal marked ‘L’.
1
With the appropriate transformer fitted.
