DC Power Systems

Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar

The Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar is a robust, modular DC power system engineered for high-capacity and mission-critical applications across telecom, industrial, and public safety networks. Designed for rapid deployment and reliable operation, it’s ideal for large-scale power installations requiring scalability and eff...

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The Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar is a robust, modular DC power system engineered for high-capacity and mission-critical applications across telecom, industrial, and public safety networks. Designed for rapid deployment and reliable operation, it’s ideal for large-scale power installations requiring scalability and efficiency.

This 5U Powercore system supports a high-density configuration with Flatpack S HE Rectifier Modules and optional DC/DC converter integration, providing flexible DC output options for complex system designs. It delivers a nominal –48 V DC output (–42 to –58.6 V range) and a system power of 9kW.

An optional Rectiverter module can be added to provide 230 Vac output (2400 W / 3000 VA), ensuring AC backup capability with only +1U of additional height.

Typical Applications

Telecom & Networks
• Core network facilities and data centers
• Long-haul transmission and fiber aggregation nodes
• Large-scale 4G / 5G deployments

Industrial & Utilities
• Substations and SCADA systems
• Oil, gas, and mining automation systems
• Centralized monitoring and control networks

Security & Public Safety
• CCTV and surveillance nodes
• Fire detection systems
• Access control and alarm monitoring systems

Why Choose Flatpack S 9kW 5U Powercore with Solar?

Efficient: (~95–96%):Reduced energy loss and improved thermal performance
• Modular: Hot-swappable rectifiers and n+1 redundancy for increased reliability.
• Flexible Integration: Compatible with Flatpack S and DC/DC converter modules
• Reliable: Wide temperature range (-40 °C to +65 °C) and industrial-grade components.
Eltek S platform for easy system expansion.

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Features
  • Hot-Swappable for Maximum Uptime – Designed for continuous operation, with hot-pluggable rectifiers and controllers, ensuring easy maintenance and expansion without downtime.
  • Advanced Control & Monitoring – Integrated Smartpack S controller provides real-time system oversight, remote monitoring via Ethernet, and intelligent power management.
  • Power Performance – Supports configurations with 5 high-efficiency rectifiers, delivering 48V DC power with up to 150A output.
  • Flexible Load Distribution – Multiple load breakers, supporting a wide range of telecom and network applications.
  • Supports 4 solar strings with MPPT high efficiency converters with front interfacing MC4 connectors.
  • Built to suit your needs – inverter options available on request.
Specifications
MANUFACTURER PART NUMBER
Model Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar
Part Number PB-CTES0305S-0-0-008
Height (RU) 5U
Module slots (Not supplied) 5 x Flatpack S HE Rectifier Modules
4 x Flatpack 2 Solar Modules
Compatible AC/DC Rectifiers¹⁾ 241122.105 Flatpack S AC/DC Rectifier 48/1000 HE
241122.125 Flatpack S AC/DC Rectifier 48/1800 HE
Compatible Solar Modules 241119.650 Flatpack 2 Solar 48/3200 HE
1) All modules per shelf must be of the same voltage/model.

 

AC INPUT DATA
Model Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar
Voltage (Vac) 100 - 250 Vac
Mains Configuration 1 x 230 Vac
Mains Connection Terminal Block
Frequency (Hz) 45-66 Hz
SOLAR INPUT DATA
Model Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar
Solar String OC Voltage Range (Vdc) 85 Vdc - 430 Vdc
Solar Startup Voltage (Vdc) 150 Vdc
Max. Solar String SC Current (A) 20.3A
48V BATTERY DATA
Model Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar
Plug in breakers 2 x 80A Circuit breakers

 

48V LOAD DATA
Model Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar
Nominal System Voltage (Vdc) -48 Vdc
Voltage Range (Vdc) -42 Vdc - -58.6 Vdc
Plug in breakers  1 x 80A, 10 x 30A2)
Max. Current (A) 150A total, 80A per channel

2) Other configurations available. Please consult with your Powerbox representative.

 

POWER DISTRIBUTION / CABLE ENTRY
Model Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar
Connection

2 x 48Vdc Battery (M6 bolt)
10 x  -48Vdc distribution (Screw terminals)
1 x -48Vdc bulk (M6 bolt)
4 x Solar (MC-4 M+F))

 

CONTROL & MONITORING
Model Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar
System Controller Smartpack S4)         
4) For detailed Specifications & Manuals, please refer to Smartpack S product page.

 

MECHANICAL
Model Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar
Dimensions (WxHxD) tba
Weight tba
DESIGN STANDARDS
Model Eltek by Powerbox Flatpack S 9kW 5U Powercore with Solar
Electrical Safety EN 60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013, IEC 60950-1:2013, UL 60950-1:2014
EMC EN 61000-6-1:2019 / -2:2019 / -3:2007/A1:2011/AC:2012 / -4:2019
FCC CFR47 part 15B section 109: 2010, ETSI EN 300 386 v2.1.1: 2016
Environment ETSI EN 300 019: 2-1 (Class 1.2) & 2-2 (Class 2.3)
EU 2015/863 (RoHS) & 2012/19/EU (WEEE)
Normal operating conditions as per IEC 62040-5-3:2016 clause 4.2.
Other operating conditions as per IEC 62040-5-3:2016 clause 4.3, must be advised
Technical Drawings
GA_Drawing_PB-CTES0305S-0-0-008
Downloads
Eltek_Flatpack_S_9kW_5U_powecore_with_solar.pdf
GA_Drawing_PB-CTES0305S-0-0-008.pdf
Warranty & Returns

Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.