Delta Eltek Flatpack S 2U DC Power System (2kW - 8kW)
Compact. Configurable. Telecom-Ready Power from 2kW to 8kW. The Flatpack S 2U System is a fully integrated DC power solution engineered for telecom applications that demand compact form factors, scalability, and dependable performance. Designed around Eltek’s renowned Flatpack S high-efficiency rectifiers and Smartpack S controller, this modular...
Read MoreCompact. Configurable. Telecom-Ready Power from 2kW to 8kW. The Flatpack S 2U System is a fully integrated DC power solution engineered for telecom applications that demand compact form factors, scalability, and dependable performance.
Designed around Eltek’s renowned Flatpack S high-efficiency rectifiers and Smartpack S controller, this modular 2U system delivers up to 8kW of -48V DC power, with advanced monitoring and robust distribution in one streamlined unit.
From LTE and broadband rollouts to FTTx and microwave backhaul, the Flatpack S 2U gives operators the flexibility to build, expand, and service networks with confidence — all within a 270mm system depth, ideal for shallow enclosures and upgrades.
Why Choose the Flatpack S 2U System?
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Complete Integrated System
Includes rectifiers, controller, battery and load distribution, all in a compact 2U rackmount. -
High Power Density in 2U
Delivers up to 150A / 8kW with hot-pluggable Flatpack S 48/1800 rectifiers, ideal for growing network loads. -
Advanced Control & Monitoring
Features Eltek’s Smartpack S controller with Ethernet access and alarm I/O for remote visibility and system diagnostics. -
Flexible Breaker Configuration
Supports up to 4 large breakers (up to 80A) and 10 x 30A small MCBs, offering exceptional flexibility for load and battery distribution. -
Shallow Cabinet Compatibility
With only 270mm depth, the system fits most telecom cabinets — perfect for retrofits and space-constrained environments. -
Built for Reliability
Backed by proven Eltek technology, with ORing, LVBD (standard), and optional LVLD protection, ensuring system uptime and battery safeguarding.
Ideal For:
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Mobile and Wireless Networks
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LTE / 4G / WiMAX
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Fiber & FTTx Rollouts
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Microwave and DAS Applications
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Fixed Telecom Networks and Cable Infrastructure
Features
- High Power Output (Up to 8kW / 150A): Supports up to 4 x Flatpack S 48/1800 rectifiers, delivering scalable -48VDC power for high-demand telecom applications.
- Integrated Smartpack S Controller: Enables advanced monitoring, remote management via Ethernet, and system alarms for proactive maintenance and performance tracking.
- Compact 2U Height with 270mm Depth: Space-saving design fits shallow cabinets and confined installations — ideal for retrofits and modern network builds.
- Hot-Pluggable Components: All rectifiers and the system controller are hot-swappable, allowing for rapid maintenance or system expansion without service interruption.
- Wide Input Voltage Range (85–305 VAC / 85–250 VDC): Compatible with global power grid conditions and DC supply environments, ensuring reliable operation across diverse sites.
- Coded Output Voltage Configuration: Built-in coding prevents incorrect rectifier installation, ensuring safe deployment and simplifying field service operations.
Specifications
| MANUFACTURER PART NUMBER | |
|---|---|
| Model | Flatpack2 48/3200 HE Solar Module |
| Manufacturer Part Number | 241119.650 |
| Compatible with the following Eltek Systems |
2U Solar Extension Kit (6.4 kW) - CTZ00000.1358 3U Solar Extension Kit (12.8 kW) - CTZ00000.1255 |
| INPUT DATA | |
|---|---|
| Voltage (MPPT range)¹ | 100...380Vdc |
| Voltage (Operating Range) | 85...430Vdc |
| Voltage (Start-Up) | 150Vdc |
| Maximum Current | 20.3Arms |
| Protection | Fuse, varistor for transient protection, reversed polarity, shutdown when VIN is too low, earth fault check during start-up |
| Notes | ¹ At nominal output voltages. MPPT will operate down to 100V, but the maximum input current limitation will de-rate maximum output power. |
| OUTPUT DATA | |
|---|---|
| Voltage (Default) | 53.5 Vdc |
| Voltage (Adjustable Range) | 42² - 57.6 Vdc |
|
Max Power (Vin ≥ 170Vdc) |
3200W |
|
Max Power (@ Vin = 85Vdc) |
1500W |
|
Max Current (@Vout = 48Vdc) |
66.7A |
|
Peak Efficiency |
97% |
|
Current Sharing |
Passive to optimise power available from each string of solar panels |
|
Static Voltage Regulation (10-100% load) |
±0.5% from 10 - 100% load and supplied power not limited by PV panels |
|
Dynamic Voltage Regulation |
±5.0% for 10-90% or 90-10% load variation, regulation time < 50ms |
|
Ripple |
< 250 mVPP , 30 MHz bandwidth |
| Protection | Fuse, Overvoltage shutdown, short circuit proof, high temperature, hot plug-in inrush current limiting |
| Notes | ² Stand-by / Test operation (Vout < 48Vdc) limited for Vin > 250Vdc |
| CONTROL & MONITORING | |||
|---|---|---|---|
|
System Controller
|
Smart Pack S (242100.410). Includes: 2.2" High Resolution Colour Display; Ethernet enabled for Remote or Local Monitoring and Control via Web Browser; SNMP v3 Protocol; MODBUS TCP; pComm UDP (Power Site); 6 x Programmable Relay Outputs; 6 Programmable Multi-Purpose Inputs (Digital Inputs or Analog Signals); System Logging; Automatic Battery Monitoring & Testing; Battery Quality Indication (based on test results); LVD control. For detailed Specifications & Manuals, please refer to Smart Pack S product page. | ||
| MECHANICAL | |||
|---|---|---|---|
| Dimensions [WxHxD] | 109 x 41.0 x 327mm | ||
| Weight | < 2kg | ||
| DESIGN STANDARDS | |||
|---|---|---|---|
| Electrical safety | UL60950-1 / EN60950-1 | ||
| EMC | ETSI EN 300 386 v1.6.1 EN 61000-6-1 (immunity light industry); EN 61000-6-2 (immunity industry); EN 61000-6-3 + A1 (emission light industry); EN 61000-6-4 + A1 (emission industry) | ||
| Environment | ETS 300 019-2-1 Class 1.2; ETS 300 019-2-2 Class 2.3; ETS 300 019-2-3 Class 3.2; 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 | ||
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.