Table 4 - Technical Specification
POWER SUPPLY SPECIFICATION: BF562-3 (24 V DC, 3 A)
Mains supply voltage (a.c.):
230
V
∿
, 50/60
Hz. Rated current: 0.8
A r.m.s.
Maximum output current:
3
A
Output current / power rating:
2.6
A continuous ‘
I
max a’ if DIP Switch 3 OFF (DOWN) #2
2
A continuous ‘
I
max a’ if DIP Switch 3 ON (UP)
Taking a load current greater than ‘Imax a’ will temporarily reduce the battery charge current
3 A ‘
I
max b’, battery charger turned off via CONN6
‘
I
min’ = 0
mA
Output voltage:
20 V (‘V min’) to 30 V (‘V max’) ± 2%
≤
320 mV ripple pk-pk
Battery characteristics:
Discharge cut-off: 21
V ± 2%
Float charge voltage: 27.3
V ± 1% @ 20
°
C
Battery temp. compensation: -36
mV / °K
Maximum approved VRLA battery size:
Up to 2 x 17
Ah
Battery charge capacity (C):
7 Ah up to 17 Ah (battery charged to 80% of capacity in 24 hrs)
Maximum internal battery resistance ‘Ri max’:
1.5
Ω if
DIP Switch 2 OFF (DOWN) #2
0.6
Ω
if DIP Switch 2 ON (UP)
CONNECTIONS
Mains Input (CONN1):
Mains supply input terminals: Live, Neutral & Earth. 1
mm
2
to 2.5
mm
2
cable size.
Supply Output (CONN3):
Output for auxiliary equipment. 1
mm
2
cable size,
<30
m cable length (screened cable must be used).
Battery Connector (CONN7): Connection to the VRLA batteries. 1
mm
2
cable size.
Fault Relay (CONN4):
Isolated changeover relay output, rated 1
A @ 30
Vd.c., 1
mm
2
cable size <30
m cable length (screened cable must be used).
CONN4 should not be used for compliance with EN
50131-6, PL2 provides serial data for all fault signals.
Battery Charge Inhibit (CONN6): Connect to 0
V to inhibit battery charger. 1
mm
2
cable size.
CONF Input / Output (CONN6): For OEM use.
PL2:
Serial Data Connector. Protocol available via C-TEC Technical. Optional BF423 configurator tool available at
c-tec.com
.
PL3:
Battery Thermistor Connector. Optional BF322 PSU Remote Battery Temperature Sensor available at
c-tec.com
.
PHYSICAL
Dimensions:
404
mm (W) x 404
mm (H) x 110
mm (D)
Weight / Construction:
5 kg (without batteries) / Metal lid and base
Enclosure finish:
RAL7035 textured
FITMENT & OPERATING CONDITIONS
Five mounting holes are provided for Ø4-5 mm CSK screws. Mount
≤
2 m on a vertical surface. Wall condition, construction and in-service weight
must be considered when choosing screw fixings. For compliance with EN 54-4 the PSU must be closely coupled with the CIE. The PSU enclosure
has an IP30 rating (to EN 60529) and is designed for indoor use only. The components are selected to operate within their specification when the
environmental conditions outside the enclosure comply with class 3k5 of the latest edition of IEC 721-3-3. Temperature range: -10
o
C to +40
o
C.
Maximum humidity: 95% non condensing.
CERTIFICATES & DECLARATION OF PERFORMANCES to EU No. 305/2011, CPR (Certificates and DoPs are available for download at
c-tec.com
)
VdS Approval No.: G220016
LPCB Certificate No.: 176p
Declaration of Performance: DOP0000063
CPR Certificate No.: 2831-CPR-F2657
EN 54-4:1997 + A1:2002 + A2:2006
FIRE ALARM
ancillaries
Approved Document No. DFU0056230 Rev 6
Manufacturer: Computionics Limited (C-TEC), Challenge Way, Martland Park, Wigan, Lancashire WN5 0LD.
www.c-tec.com
Niederlassung Deutschland: C-TEC Germany Limited, Virchowstr. 32, D-33332 G
ϋ
tersloh.
www.c-tec-germany.de
2 of 2
E&OE. No responsibility can be accepted by the manufacturer or distributors of these power supplies for any misinterpretation of this instruction, or
for the compliance of the system as a whole. The manufacturers policy is one of continuous improvement and we reserve the right to make changes
to product specifications at our discretion and without prior notice.
Important Note about Batteries: This PSU complies with EN 54-4 and therefore must monitor and report battery
resistance faults when batteries are fitted. The battery resistance fault threshold is directly related to the ability of
the batteries to deliver the rated current to the load.
VRLA battery resistance varies with manufacturer quality, battery age (from date of manufacture, particularly if left
uncharged during shipping or storage), temperature, size and state of charge. It is not uncommon for so called “new”
batteries to be in excess of six months old if the supply chain is not properly managed. It is therefore important to fit
good quality, new batteries that have not been shelf soiled during shipment
or storage. VRLA battery resistance naturally increases in cold environments
and may make marginally usable batteries at room temperature unusable
at low temperatures. Careful siting of the product may alleviate some of
the natural limitations of VRLA batteries. Smaller batteries have a higher
resistance than larger batteries as shown in Table 3 right.
VRLA battery life is typically rated at 20°C. Raising the temperature by 10°C
will halve the expected usable life of a VRLA battery. Operating at 40°C
will therefore lead to only a quarter of the expected life. High temperature
also degrades battery life during shipping and storage.
#1 Additional tamper protection required
#2 Non-certified setting
INDICATORS
3 x Front Panel Indicators:
(Green Steady LED) - The Supply Output (CONN3) is healthy and within range
(Amber Steady LED) - A fault is present on the PSU
(Amber LED) - A fault with an auxiliary unit (user-definable), 20 to 30
V, 3.5 to 7
mA.
2 x Power Supply PCB LEDs:
Hazardous Voltages Present (Red Steady LED)
PSU Status (Amber Flashing LED), see Table 1 - PSU Status LED (Fig.1)
VRLA
Battery
T
ypical Battery Resistance
(single battery, x2 for 24 V systems)
12 V, 2 Ah
280 m
Ω
12 V, 3.2 Ah
100 m
Ω
12 V, 7 Ah
85 m
Ω
12 V, 17 Ah
65 m
Ω
12 V, 38 Ah
58 m
Ω
Table 3 - Battery Resistance
