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Uninterruptible Power Systems
SDU Series, Direct Current Uninterruptible Power Supply (DC UPS) System
The SDU DIN Rail DC UPS is an advanced 24 Vdc
uninterruptible power system that combines an industry
leading design with a wide operational temperature range
and unique installation options. The SDU DC UPS is a
powerful, microprocessor controlled UPS that provides
protection from power interruptions. With an input voltage
range of 22.5 to 30.0 Vdc, the DC UPS is the ideal power
back-up solution for your critical connected loads.
These units were designed specically for use with SolaHD’s
popular SDN Series of power supplies. SolaHD’s external
battery module is the only one on the market that allows you
to seal the electronics in the panel and maintain safety by
placing the battery outside of a non-ventilated enclosure.
These units include easy to wire screw terminations for
critical devices needing battery back-up. The SDU DC UPS
includes an automatic self-test feature that checks the UPS
and battery functions. Battery charging occurs automatically
when input DC power is applied. When power fails, the DC
UPS will switch to battery back-up. If the battery is no longer
useful, the UPS will sound an alarm and an LED indicator will
illuminate.
Back-up power protection in modern industrial applications
depends mainly on AC UPS. AC is converted to DC, and
converted back to AC in the AC UPS, then converted
back to DC in the protected equipment power supply. By
applying the SolaHD SDU DIN Rail DC UPS, you avoid the
inefciencies of all these conversions. This design maximizes
system up-time exibility, and optimizes reliability assurance.
Applications
• Industrial/Machine Control
• Automation Process Control
• Computer-based Control Systems
• Conveying Equipment
• Material Handling
• Packaging Machines
• Semiconductor fabrication equipment
• DeviceNet
• Amusement Park Equipment
• Pharmaceutical Applications
• Control Rooms
TM
E137632E61379
• Power module wide operation temperature
range (-20 to +50°C)
• Flexible batteries back-up expansion capabilities
• Overload protection in normal and battery modes
• User replaceable batteries
• IP-20 rated input and output screw terminals
• No internal fan, no extra cooling required
• Sturdy, reliable all metal DIN Rail mounting
connector
• LED status indicators
• Universal dry contact relay terminals provide
remote signaling
• Monitoring, diagnostics, and remote turn-on and
shut-off capabilities
• Two year limited warranty
Certifications and Compliances
All Models
•
- UL 508, CSA C22.2 No. 107.1
•
- UL 60950-1/CSA C22.2 No. 60950-1
•
- IEC/EN60950-1
Related Products
• SDN-P Series DIN Rail Power Supplies
• SDN-C Series DIN Rail Power Supplies
• STV 25K Series Surge Protective Devices
Listed, Ind. Control Equipment, E61379
UL Recognized Component, ITE, E137632
Features
• Modular, rugged industrial grade design
• Microprocessor based controls
• Automatic self-test feature for UPS function and battery
management check
Uninterruptible Power Systems
Selection Table
Catalog Number Description Approx. Ship Weight lbs (kg)
UPS
SDU 10-24
SDU 20-24
SDU 24-BAT
SDU 24-BATEM
SDU 24EXTBC6
SDU 24-DB9
SDU-PMBRK
240 VA, 24V/10A DIN Rail DC UPS power module, battery module is required 1.7 (0.77)
480 VA, 24V/20A DIN Rail DC UPS power module, battery module is required 1.7 (0.77)
Battery
24V DIN Rail/Panel Mount Battery Module (cable included) 12.0 (5.33)
24V External Mount Battery Module (cable included) 16.0 (7.11)
Accessories
Optional 6 ft. Battery Module cable to 24V DC UPS 0.5 (0.22)
Optional interface kit to convert relay contacts signals to DB9 signals 1.0 (0.45)
Optional chassis mount brackets to secure UPS to wall, panel, or enclosure 0.5 (0.22)
2
There are three individual hardware products when putting
an SDU DC UPS system into operation:
1. 24 Vdc Power Supply (Recommended SolaHD
SDN Series)
2. 24 Vdc SDU DC UPS Power Module
3. 24 Vdc SDU DC UPS Battery Module; or
24 Vdc SDU DC UPS External Battery Module
There are two models of the SDU DC UPS Power Module:
1. SDU 10-24, 24 Vdc/10amp (battery modules are
required)
2. SDU 20-24, 24 Vdc/20amp (battery modules
are required)
DIN Rail Mounted Battery Option
There are two models * of the SDU DC UPS Battery
Modules:
1. SDU 24-BAT, DIN Rail/Panel mount for installation in
ventilated enclosure, up to 4 battery modules can be
connected to the SDU DC UPS.
2. SDU 24-BATEM, Panel mount, alternate battery module
for external installation of non-ventilated enclosures, only
1 battery module can be connected to the SDU DC UPS.
* Can not use a combination of both models of the battery modules, only
one model of the battery module can be connected to the SDU DC UPS.
External Battery Option
1) AC/DC Power Supply
2) Power Module: SDU 10-24 or SDU 20-24
3) Battery Module: SDU 24-BAT
4) Optional battery module for extended Back-up.
1) AC/DC Power Supply
2) Power Module: SDU 10-24 or SDU 20-24
3) Battery Module: SDU 24-BATEM
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Uninterruptible Power Systems
SDU DC UPS Power Modules Specifications
Specification SDU 10-24 SDU 20-24
Input
Nominal Input Voltage
Input Voltage Range
Input Fuse
Output
Nominal Output Voltage
Output Voltage Range
Output Current
Current Limit
Input Protection
Overload Protection
Short Circuit
Type
Charging Current
Typical Recharge Time
(to 90% of full capacity)
Back-up Time (full load)
Protection
Net Weight - lbs (kg)
Dimensions H x W x D - in. (mm)
Battery Low
Overload
Audible Noise
Power Module Operating Temperature
Storage Temperature
Humidity
Max Elevation
Shock & Vibration
EMC
MTBF
Output
Mounting
Connections
Relay Contact Terminal Connections
Case
Free Space
Notes:
1. See Battery Back-up Times on next page.
2. DC UPS System includes one power module (SDU 10-24 or SDU 20-24) and one or more battery modules (SDU 24-BAT or SDU 24BATEM)
1
UPS Shutdown when battery voltage drops below 22V, to prevent the complete depletion of the battery,
Directive 2004/108/EC: EN 62040-2 Category C2 EN 55022 Class A + A1 + A2, CISPR 22 Class A (2005),
IEC 61000-3-2, IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6 + A1,
Outputs are capable of providing high currents for short periods of time for inductive load startup or switching.
Fusing may be required for wire/loads if 2x Nominal O/P current rating cannot be tolerated.
Simple snap-on system for DIN Rail TS35/7.5 or TS35/15 or chassis-mounted, optional screw mounting set
Input & Output: IP20-rated screw terminals, connector size range: 16-12 AWG (0.5-4 mm
10 A 20 A
12 A 22 A
Protection
Fuse for overload & short circuit protection
Electrical Circuit Protection
UPS output cut off immediately
Battery Module
Sealed, maintenance-free lead acid batteries.
8 Hours for 1 Battery Module
24 Hours for 2 Battery Module
12 Hours for each additional Battery Module
14 minutes 4 minutes
short circuit protection by a 30A fuse.
Physical
4.88 x 3.02 x 4.55 (124.0 x 77.0 x 116.0)
Alarm
Rapid Audible Indicator every 1 second
Continuous Audible Indicator
Environment
<40 dBA (1 meter from surface)
3500 meters (11,483 feet)
DC UPS System
General
Installation
Continuous current overload allows for reliable fuse tripping
IP20 screw terminals; connector size range: 24-16 AWG (0.34-4mm
Fully enclosed metal housing with ventilation grid to keep out small particles.
20 mm above and 35 mm below, 20 mm left and right, 10 mm in front
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FCC Part 15, Subpart B, Class A
IEC 61000-4-8, IEC 61000-2-2
> 200,000 Hours, MIL-STD 217F
for copper conductors rated 90o.
24 Vdc
22.5 - 30 Vdc
DC Fuse 30A
24 Vdc
22.5 - 30 Vdc
0.5 A
1.7 (0.77)
o
C to +50oC
-20
o
C to +70oC
-20
0-95%
According to ISTA 2A
SDU-PMBRK.
2
)
2
)
SDU DC UPS Battery Module Specifications
Parameter SDU 24-BAT SDU 24-BATEM
Nominal Voltage
Protection
Charging Current
Enclosure
Dimension in. (mm)
Enclosure Type
Terminal Connector Type
Batteries
Accessories
Operating Temperature
Storage Temperature
Humidity
Weight - lbs (kg)
Mounting
Simple snap-on system for DIN Rail TS35/7.5 or TS35/15 or
chassis-mounted, optional screw mounting set SDU-PMBRK.
Uninterruptible Power Systems
24 Vdc
Fuse: 30A Circuit Breaker: 24V, 25A
0.5A 0.8A
4.88 x 8.27 x 4.55
(124.0 x 210.0 x 116.0)
IP20 NEMA 1
Polarized Powerpole Connectors
Replaceable Batteries
1 ft. polarized battery cable 6 ft. polarized battery cable
o
to +50oC
-20
o
to +40oC
-20
95% no condensation
12.0 (5.33) 16.0 (7.11)
11.5 x 5.57 x 4.57
(292.0 x 142.0 x 116.0)
Wall/Chassis Mounting
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SDU DC UPS Back-Up Times (Typical)
SDU 10-24 with SDU 24-BAT
Load 20% (2A) 40% (4A) 60% (6A) 80% (8A) 100% (10A)
1 unit 113 45 30 21 14
2 units 247 114 74 48 38
3 units 396 178 117 80 58
4 units 531 233 148 111 81
SDU 10-24 with SDU 24-BATEM
1 EBP 135 52 28 19 14
SDU 20-24 with SDU 24-BAT
Load 20% (4A) 40% (8A) 60% (12A) 80% (16A) 100% (20A)
1 unit 46 21 10 06 04
2 units 116 50 28 17 10
3 units 178 80 46 31 20
4 units 237 113 65 43 31
SDU 20-24 with SDU 24-BATEM
1 EBP 48 17 9 6 4
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