Battery Range Summary
Seismic Stand Configuration
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RESERVE
POWER
The PowerSafe® DDm range offers an
Features and Benefits
Benefits of the Steel Container Design
ideal solution for large capacity valve
• 100% “out of the box” initial battery capacity
regulated lead acid battery requirements.
• Proven VRLA AGM technology
• Ease of installation. Simply set up rack and
install modules
PowerSafe DDm’s steel container design
• Up to 2000 Ah in a single cell
• Uniform and consistent compression
• Stand design allows for maximum heat
• “Designed-in” thermal management allows
maximum air flow
concept, with its integral racking system,
provides a cost effective battery system
with a compact, quick and simple
installation process.
The PowerSafe DDm battery system’s
cutting-edge technology incorporates an
enhanced cell design with thick positive
plate for long life and a superior racking
system. The welded/epoxy, dual pillar
seal design provides a high integrity seal
dissipation
• Certified to 1997 UBC Zone 4 to six high on
DDm125 sizes and eight high on all other
sizes
• Module design. 2 and 4 volt modules
available
• System can be configured 2, 3, 4 or 6 cells
wide in single cell modules; 2, 4 or 6 cells
wide in 2-cell modules for maximum flexibility
• Easy installation
• Top termination supplied as standard
• Clear flame retardant safety shields allow for
easy visual inspection without removal
and the large copper pillar design
enhances high rate performances.
Cells are encased in dedicated
protective steel containers that maintain
constant and uniform compression for
the life of the cell. The easy to assemble
racking system provides total flexibility
for system configuration and allows fast
• Negative plate - Balanced lead-calcium plates
optimise recombination efficiency
• AGM separator - Mechanically strong, low
electrical resistance, microporous glass fibre
completely absorbs the electrolyte into its
structure
• Electrolyte - Dilute sulphuric acid
applications including
telecommunications, power
generation/distribution and UPS.
• Flexible configuration - 2, 3, 4 or 6 cells wide in
single cell modules or 2, 4 or 6 cells wide in
2-cell modules
• Total front access for easy maintenance
• Floor anchoring - easy access during install, rack
can be set before stowing modules
• Top termination as standard - optional side
termination available
• Grounding kits available for bonding of all steel
components
• Container are single-piece construction
and service life across a wide range of
• Easy to install modules
• Transition kits available
difficult locations.
plates, provides excellent performance
Installation
• Positive plate - Thick 6.4mm lead-tin-calcium
grids minimise corrosion and prolong life
• Container - Flame retardant polypropylene
(UL94 V-0/L.O.L. 28%)
recombination technology and extra thick
• Cell protected from damage during transport
Construction
and simple installation, even in the most
PowerSafe DDm, with its optimised
• Flexible configuration
• Terminal pillar - Cast lead terminal. Threaded
copper insert, with large surface area, to provide
maximum conductivity
• Pillar seal - Ring burn with secondary epoxy
resin seal is 100% water bath tested in the
factory and proven in service
• Relief valve - Operates at 2-3 psi and is
complete with integral flame arrestor
Battery Range Summary
General Specifications
Nominal Capacity (Ah)
PowerSafe DDm
Battery Type
®
Nominal Dimensions (mm)
Nominal
Voltage
(V)
Cells
per
Module
10 hr rate
to 1.80Vpc
@ 20°C
Length
Height
Depth
(container)
Depth
(module)
Typical
Weight
(kg)
Internal
Resistance
(micro-Omhs)
Short Circuit
Current
(Amps)
4
4
2
4
4
2
2
2
2
2
2
2
2
2
2
2
2
2
1
2
2
1
1
1
1
1
1
1
1
1
1
1
202
303
404
498
582
831
997
1080
1330
975
1170
1270
1560
1490
1610
1980
188
265
176
265
303
214
252
271
328
214
252
271
328
252
271
328
165
165
165
165
165
165
165
165
165
165
165
165
165
226
226
226
333
333
333
519
519
519
519
519
519
590
590
590
590
562
562
562
366
366
366
554
554
554
554
554
554
624
624
624
624
597
597
597
34.3
49.5
34.0
75.7
88.5
64.5
74.4
80.8
97.9
73.5
86.5
92.0
115.3
112.3
120.8
144.1
825
550
413
515
441
309
258
238
193
270
225
208
169
168
155
126
2527
2791
5048
4049
4728
6748
8081
8761
17803
7722
9267
10024
12337
12411
13452
16548
2DDm50-09
2DDm50-13
DDm50-17
2DDm85-13
2DDm85-15
DDm85-21
DDm85-25
DDm85-27
DDm85-33
DDm100-21
DDm100-25
DDm100-27
DDm100-33
DDm125-25
DDm125-27
DDm125-33
Outline Drawings
Container Depth
Container Depth
Height
Height
Module Depth
Length
Module Depth
Length
Battery Range Summary
System Configurator
Nominal Stack Length (mm)
PowerSafe® DDm
Battery Type
2DDm50-09
2DDm50-13
DDm50-17
2DDm85-13
2DDm85-15
DDm85-21
DDm85-25
DDm85-27
DDm85-33
DDm100-21
DDm100-25
DDm100-27
DDm100-33
DDm125-25
DDm125-27
DDm125-33
(1)
(2)
Nominal
Voltage
(V)
Cells
per
module
Nominal
Row
Height
(mm)
4
4
2
4
4
2
2
2
2
2
2
2
2
2
2
2
2
2
1
2
2
1
1
1
1
1
1
1
1
1
1
1
219.2
219.2
219.2
219.2
219.2
219.2
219.2
219.2
219.2
219.2
219.2
219.2
219.2
279.4
279.4
279.4
Typical Module Weight(1) (kg)
Nominal
Stack
Depth
(mm)
2 Wide
Module
3 Wide
Module
4 Wide
Module
6 Wide
Module
Unpacked
Packed
412.8
412.8
412.8
596.9
596.9
596.9
596.9
596.9
596.9
666.8
666.8
666.8
666.8
698.5
698.5
698.5
401(2)
477(2)
442
477(2)
515(2)
517
594
632
746
517
594
632
746
622
660
774
N/A
N/A
619
N/A
N/A
732
846
904
1075
732
846
904
1075
871
928
1099
468
620
791
620
696
944
1096
1173
1401
944
1096
1173
1401
1127
1203
1432
658
887
1145
887
1001
1412
1640
1755
2098
1412
1640
1173
2098
1668
1784
2126
42.6
59.0
39.9
87.2
100.8
72.1
83.0
90.3
111.1
83.9
99.3
107.1
130.2
122.0
131.5
161.0
45.6
62.0
41.4
90.2
103.8
73.6
84.5
91.8
112.6
85.4
100.9
108.6
131.7
123.5
133.3
162.5
Includes hardware for calculating system weight
Standard top termination not available, stack length is with same side termination
System Dimensions Formula
System height = (row height x no. of cell high) + 229mm
System length = stack length x no. of stacks
System weight = module weight x no. of modules
Example A: 24 x DDm85-21
4 modules wide per stack x 6 modules high per stack
Height
Height
System height = (219.2mm x 6) + 229mm = 1,544.2mm
System length = 944mm x 1 = 944mm
System weight = 72.1kg x 24 = 1,730.4kg
Example B: 240 x DDm125-25
4 modules wide per stack x 6 modules high per stack
System height = (279.4mm x 6) + 229mm = 1,905.4mm
System length = 1127mm x (240 ÷24) = 11,270mm
System weight = 122.0kg x 240 = 29,280.0kg
Length
Length
Depth
Depth
Terminal Location
Not all locations are possible for all configurations.
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EnerSys EMEA EH Europe GmbH, Löwenstrasse 32, 8001 Zurich, Switzerland
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Subject to revisions without prior notice. E.&O.E.
www.enersys-emea.com
EN-DDm-RS-004 - October 2014
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