EN
UZK24.262/-E1, UZO24.262/-E1 Installation Manual
Product Description
The UZK24.262 battery module utilizes 2 non-spillable maintenance-free VRLA lead-acid batteries.
The battery module includes the connector module UZW24.100 which provides an auto-resettable
fuse, temperature sensor and terminals for paralleling of a battery extension module.
The auto-resettable fuse is suitable for balancer currents up to 2.5A. It protects the center-tap wire
between the battery module and the DC-UPS control unit.
The use of the sensor board enables to monitor and charge the two batteries individually and
precisely, which extends the service life of the batteries and makes the use of matched replacement
batteries unnecessary. The use of the sensor board signal connections is optional, the DC-UPS will
also function without the sensor board installed.
The UZK24.262 is compatible with most of the PULS DC-UPS control units and enables all the
benefits of the PULS 1-Battery-Concept. It can be ordered as UZK24.262 (including batteries) or as
UZO24.262 (comes without batteries; to be procured by customers).
For increase of battery capacity, UZK24.262-E1 (with batteries) and UZO24.262-E1 (comes without
batteries) are the perfect match.
Intended Use
This device is designed for installation in an enclosure and is intended for commercial use, such as in
industrial control, process control, monitoring and measurement equipment or the like. Do not use this
device in equipment where malfunction may cause severe personal injury or threaten human life.
Installation Instructions
This device does not contain serviceable parts, except the fuse or replacement battery. If malfunction
should occur during installation or operation, first check the fuse and battery for proper functionality. If
the unit is damaged or if the malfunction continues, immediately turn power off and send device to the
factory for inspection.
Do not install the battery fuse until the installation work is complete.
Replacement fuses must be of the same type or an UL listed fuse with the same nominal value and
characteristics.
Do not store batteries or battery modules at temperatures higher than 25°C or performance and
lifetime may change.
Before initial use, check the last charging which is marked on the battery. If it is older than 9 month,
replace the battery.
Do not store batteries longer than 9 months without charging or performance and lifetime may change.
Every 9 months or whenever the open circuit voltage (OCV) falls below 25.2V, the battery module
should be charged. Apply a charging voltage of 27.6V (at
25°C) for 72 hours. Batteries with an OCV
below 24V should be disposed.
Do not short-circuit the battery poles or power wires and always check correct battery polarity.
Mount the device onto a flat surface. Do not install the battery module upside down.
Install the device in a cool area inside an enclosure providing protection against electrical, mechanical
and fire hazards. Ensure sufficient ventilation by following the requirements of the EN 50272-2.
The device is designed for pollution degree 2 areas in controlled environments.
No condensation or
frost allowed.
The enclosure of the device provides a degree of protection of IP00.
Do not use batteries other than the original batteries supplied by the manufacturer to avoid conflicts
with agency approvals.
The maximum surrounding air temperature is +5
0°C (+122°F). The operational temperature is the
same as the ambient or surrounding air temperature and is defined 2cm below the device. Charging is
allowed up to +5
0°C.
Frequ
ently charging below +5°C reduces the lifetime of the battery.
The device is designed to operate in areas between 5% and 95% relative humidity.
Do not use wires smaller than 6mm
2
(AWG 10) or longer than 2m (7ft) to avoid voltage drops on the
connection between the battery module and the DC-UPS.
Connect the sensor board signals to the DC-UPS by using control wires with a minimum wire size of
0.5mm
2
(AWG 20) and the center tap with a minimum wire size of 1mm
2
(AWG 17).
Instructions for replacement and disposal of batteries:
Batteries need to be replaced periodically. The time interval depends on the ambient temperature in
which the battery is used and on the number and depth of discharge cycles. In a typical application it
is recommended to replace the batteries at least every 2 years. Disconnect battery fuse before
replacing the batteries.
Always dispose batteries through a recycling organization. Optionally, batteries can be returned to the
supplier or the battery manufacturer. Batteries must be completely discharged before recycling.
CAUTION: The unit contains wet cell batteries. Ventilation of the installation room in accordance with
the rules of Canadian Electrical Code, part 1 is required if used in Canada.
Instructions for replacing and installing batteries:
ATTENTION! Disconnect battery fuse before replacing the battery
1)
Loosen screw of battery holder with only one turn.
2)
Remove Insulating caps from the battery terminals.
3)
Unscrew the battery terminals.
4)
Slide the mounting bracket sideways and take the mounting bracket off.
5)
Remove the battery (if applicable).
6)
Insert the new battery.
7)
Fix it again with the mounting bracket and make sure that the lock washer lies between the
screw head and mounting bracket.
8)
Screw the mounting bracket with tightening torque: 2Nm (18 lb.inch).
9)
Do not over-tighten screws of the terminal bolts of the battery. Recommended tightening
torque: 2,5Nm (22 lb.inch).
10) Insert battery fuse.
Technical Data
All values are typical figures unless otherwise noted.
Voltage
DC 24V
Nominal battery capacity
26Ah
Battery current
Max. 50A
Discharge current
Max. 7.5A
Charging current
Max. 2.5A
Balancer current
Recommended charging
voltage
27.8V
27.5V
27.15V
26.8V
At +
10°C
At +
20°C
At +3
0°C
At +
40°C
Self-discharge rate
3% / month
At +20°C
Battery fuse
2*40A
ATOF
®
287 040 from
Littelfuse.
Temperature sensor
PT1000
Temperature range
-
10°C to +50°C
For charging
-
15°C to +50°C
For discharging
Storage temperature range
-
20°C to +50°C
Max. wire size (litz wire)
10mm
²
For power terminals
Wire size AWG
AWG 22-8
For power terminals
Maximum wire diameter
5.2mm
For power terminals
Wire stripping length
12mm / 0.5inch
For power terminals
Tightening torque
2.3Nm / 20lb.inch For power terminals
Max. wire size (litz wire)
1.5mm²
Sensor board terminals
Wire size AWG
AWG 26-14
Sensor board terminals
Maximum wire diameter
1.5mm
Sensor board terminals
Wire stripping length
5mm / 0.25inch
Sensor board terminals
Tightening torque
0.45Nm / 4lb.inch Sensor board terminals
Cable length
0.2m
1m
UZK(O)24.262
UZK(O)24.262
–E1
Size
(wxhxd)
359x214x167mm UZK24.262 incl.
UZW24.100
359x214x128mm UZK24.262
–E1
Weight
per module
10kg / 22lb
UZK24.262/-E1
0.7kg / 1.54lb
UZO24.262/-E1
Mechanical Dimensions
All dimensions in mm
Hole Pattern for Wall Mounting
All dimensions in mm
