Ampac FireFinder II Series User Manual

Page 11
FIREFINDER SERIES II INSTALLATION, COMMISSIONING &
OPERATION
4.8 Power Supplies and AC Mains Installation
Generally the AC Mains will be connected to either a 2 Amp, 5 Amp or 18Amp 27 volt supply. These
supplies will be either mounted in the upper or lower right hand corner of the cabinet with the
Brigade Board mounted above or below. The wiring should enter the cabinet through the nearest
knockout entry hole on that side. See the following diagrams for the actual wiring and fusing details
for each supply.
Common Power Supply Features & Specifications
High efficiency, low working temp.
High efficiency; low ripple noise
Universal AC input/ full range
Soft start with limiting AC surge current
Short circuit/ over load
Built in EMI Filter and PFC Circuit
Remote control on/off (option)
Over voltage protection
Over temp. protection (option)
Input Voltage:
85 to 264 VAC
Tolerance at 27V
+/- 1%
Input Freq
47 to 63Hz.
Load Regulation
+/- 0.5%
PFC
0.95~230VAC
Line Regulation
+/- 0.5%
Power Supply Specifications
Type No
Output
Tolerance
R & N
Efficiency
SP-150-27
27V @ 5.6A
 1%
150mV
84%
4.8.1 Connecting the Mains Earth
All earth cabling shall be terminated to the panel Chassis Earth Terminal in a star configuration.
The earth cable closest to the cabinet body shall have an M4 SPW beneath the lug then an M4 SPW
and M4 nut.
Each additional earth cable shall be terminated with an M4 SPW and M4 nut.
An additional M4 nut and M4 SPW are fitted to the Chassis Earth Terminal for installers to connect
their Mains Earth.
M4 Shake Proof Washer
M4 Shake Proof Washer
CHASSIS EARTH TERMINAL
M4 Nut
Earth Cable
Earth Cable
M4 Nut
M4 Shake Proof Washer *
M4 Nut *
Note:
* Extra M4 Nut and M4 SPW are
provided finger tight on the Earth bolt.
Figure 8: Panel Earthing

Ampac FireFinder II Series Specifications

General

Brand	Ampac
Model	FireFinder II Series
Category	Fire Alarms
Language	English