DC Power for
Business-Critical Continuity™
Solar Sub Rack
Key Features
nAdd solar energy to
an existing -48V DC
power system
nEasy deployment in
existing cabinets
nCompatible with
existing batteries
nReduces expenses
related to electricity
and/or diesel fuel
Solar Sub Racks from Emerson Network Power
enable NetSure™ DC power systems and existing
-48V DC power systems to operate on solar energy.
Description
Add solar energy to an existing -48V DC power system by integrating the Solar Sub
Rack into the existing cabinet. The desired output voltage from the sub rack is set
in the controller and is independent from the DC power supply system controller.
The Solar Sub Rack exists in two versions:
• Main unit with controller and space for one 3 kW solar converter module
• Extension unit with space for two 3 kW solar converter modules
Extension sub racks are connected to the main sub rack via CAN
bus, allowing communication between the solar converters in the
extension sub rack and the controller in the main sub rack.
Extension sub racks can also be connected directly to NetSure™
DC power systems equipped with ACU+ controller.
Application
The Solar Sub Rack is intended for telecom sites in the access and transmission
network, providing an alternative energy source (solar energy) to the existing grid
connection or battery/diesel generator hybrid. Savings in electricity and diesel fuel
costs can be achieved by operating on solar energy during the daylight hours.
Main Sub Rack
Extension Sub Rack
EN604DRA-SolarRack / 1012
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Solar Sub Rack
Technical Specifications
Main Sub Rack
Input Voltage Range
Max Static Input Voltage
Configuration
Interface From Solar Array
Output Voltage Range
Output Power
Max Output Current
Interface to -48 DC Power System
Temperature Range, Operational
Relative Humidity
Safety
Dimensions (H x W X D)
Weight
58 to 150 VDC
165 VDC
1 solar converter (S48-3000)
Terminal block, 2 x 16 mm2, rear connected
-48 to 58 VDC
3 kW
61 A
Terminal block, 2 x 16 mm2, rear connected
-20 to +55 °C
≤ 95 %
EN62109-1:2010 and EN50178:1997
44 x 440 x 355 mm (1.73 x 17.32 x 13.97 in.)
< 8 kg (17.63 lb.) with solar converter installed
Extension Sub Rack
Input Voltage Range
Max Static Input Voltage
Configuration
Interface From Solar Array
Output Voltage Range
Output Power
Max Output Current
Interface To -48 DC Power System
Temperature Range, Operational
Relative Humidity
Safety
Dimensions (H X W X D)
Weight
58 to 150 VDC
165 VDC
2 solar converters (S48-3000)
Terminal block, 4 x 16 mm2, rear connected
-48 to 58 VDC
2 x 3 kW
2 x 61 A
Terminal block, 4 x 16 mm2, rear connected
-20 to +55 °C
≤ 95 %
EN62109-1:2010 and EN50178:1997
44 x 440 x 355 mm (1.73 x 17.32 x 13.97 in.)
< 11 kg (24.25 lb.) with two solar converters installed
Solar Converter S48-3000
For information regarding the solar converter, refer to the separate data sheet.
Ordering Information
Description
Solar sub rack
Solar sub rack extension
Accessories
19" mounting kit for 1 sub rack
19" mounting kit for 2 sub racks
19" mounting kit for 3 sub racks
23" mounting kit for 1 sub rack
23" mounting kit for 2 sub racks
23" mounting kit for 3 sub racks
3 kW MPPT solar converter (S48-3000)
EmersonNetworkPower.com/EnergySystems (North America)
EmersonNetworkPower.eu/EnergySystems (EMEA)
© Emerson Network Power Energy Systems North America 2012.
Business-Critical Continuity™, Emerson Network Power™, the Emerson Network Power logo, Emerson® and Consider it Solved are service marks and trademarks of Emerson Electric Co.
EnergyMaster™, eSure™, NetPerform™, NetReach™, NetSpan™, NetSure® and NetXtend™ are trademarks of Emerson Network Power Energy Systems North America.
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EN604DRA-SolarRack / 1012