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24V/36V/48V Multi-Voltage Output 125A High Output Current DC Power System with 1U Ultra-Compact Rack Design Bulk Feed Power System
Multi-Voltage Output DC Power System
,125A High Output Current Bulk Feed Power System
,1U Ultra-Compact Rack DC Power System
The Eltek Flatpack S 1U Bulk Feed is a compact, high-density integrated DC power system developed for marine, offshore, and telecommunication scenarios. Adopting a classic 1U rack design with a shallow 250mm depth, it is highly compatible with various standard cabinets and legacy equipment, serving as an excellent replacement and expansion solution. This system provides three mainstream DC output options — 24V, 36V, and 48V — with a maximum output current of 125A and total power up to 5.4kW. It is fully equipped with Flatpack S hot-pluggable rectifiers and a Smartpack S intelligent controller, enabling maintenance and module replacement without system shutdown. The product features flexible power distribution modes, supporting 2 direct bulk outputs plus 2 LVBD-controlled outputs or 4 direct bulk outputs, and is fitted with optional 80A LVBD protection. Built with an Ethernet communication port, it realizes remote monitoring, parameter configuration, and fault alarm. Compliant with UL and ETSI international standards, it delivers outstanding stability and environmental adaptability, suitable for long-term operation in harsh marine and outdoor telecom environments.
- Multi-Voltage Output Selection: Supports 24VDC / 36VDC / 48VDC three mainstream output specifications, meeting diverse DC power demands of different devices.
- Full Hot-Plug Design: Both Flatpack S rectifiers and Smartpack S controller support hot plug, eliminating system downtime during maintenance.
- Flexible Distribution Modes: Configurable with 2 bulk outputs + 2 LVBD-controlled outputs or 4 direct bulk outputs; optional 80A LVBD low voltage disconnection protection.
- Universal Input Adaptation: 85–305VAC / 85–300VDC dual input, compatible with single-phase and three-phase power grids (3×1 phase / 3 phase Δ/Y), 45–66Hz wide frequency range.
- Remote Intelligent Management: Embedded Ethernet port supports remote data viewing, parameter setting, and fault alert for unattended operation.
- Compact Shallow Structure: 1U ultra-thin body and 250mm shallow depth saves cabinet space and fits most narrow cabinets.
- Polarity Flexibility: Supports positive/negative polarity output, adapting to different wiring standards of global equipment.
- Reliable Wiring Terminals: Adopts 4mm² rear terminal blocks for AC access and M6 cable lugs for DC battery/load wiring, ensuring firm and safe connections.
- Global Certification: Passes UL 60950-1, ETSI, and EMC series certifications, compliant with marine and telecom industry standards.
- High Load Capacity: Maximum 125A output current and 5.4kW total power, capable of driving medium and large loads stably.
| Category | Item | Parameter |
|---|---|---|
| Basic Info | Product Type | 1U Rack-mounted Bulk Feed DC Power System |
| Model | Flatpack S 1U Bulk Feed | |
| Part Number | CTOS0301.xxx | |
| Matching Devices | Flatpack S Rectifiers, Smartpack S Controller | |
| AC/DC Input | Input Range | 85 ~ 305VAC / 85 ~ 300VDC |
| Grid Configuration | 3×1 phase / 3 phase (Δ/Y) | |
| Input Frequency | 45 ~ 66Hz | |
| AC Terminal | 4mm² Rear Terminal Block | |
| Max Current Per Module | 9.9A (48V) / 5.9A (36V/24V) | |
| DC Output | Optional Voltage | 24VDC / 36VDC / 48VDC |
| Max Output Current | 125A | |
| Total Max Power | 5.4kW | |
| Output Polarity | Positive / Negative (Optional) | |
| Wiring Terminal | M6 Cable Lug (Rear Connection) | |
| Distribution & Protection | Distribution Mode | 2 Bulk + 2 LVBD / 4 Direct Bulk |
| LVBD | Optional 80A Latched Protection | |
| Shunt Position | Positive / Negative Leg (Optional) | |
| Communication | Interface | Ethernet Port (Remote Monitoring Supported) |
| Physical Parameters | Dimension (W×H×D) | 482.5 × 44.3 × 250 mm |
| Recommended Cabinet Depth | ≥300mm | |
| Net Weight | 4.7kg (Controller Included, Excluding Rectifiers) | |
| Certifications | Compliance | UL 60950-1, ETSI EN 300 386, Full EMC Compliance |
| Environment | Standard | Meets ETSI EN 300019 Series Environmental Standards |
| Trade Terms | Warranty Period | 12 Months |
- Marine & Offshore: Shipboard power distribution, offshore platform control systems, marine safety and automation equipment.
- Telecom Industry: Mobile base stations, fixed-line communication rooms, FTTX fiber access nodes, microwave communication devices.
- Industrial Fields: Process industry control systems, factory automation equipment, outdoor unattended monitoring stations.
- Power Utilities: Substation auxiliary power, SCADA systems, power distribution control devices.
- Retrofit Projects: Old cabinet renovation, legacy power system replacement and capacity expansion.
- Strong Versatility: Multiple voltage outputs and optional polarity cover most global telecom and marine equipment standards.
- Low Maintenance Cost: Full hot-plug design realizes non-stop maintenance, greatly reducing operation risks and labor costs.
- Flexible Configuration: Various distribution combinations and optional LVBD protection can be customized according to on-site load demands.
- Space-Saving Design: 1U shallow body adapts to space-limited cabinets and outdoor communication boxes.
- Dual Input Compatibility: AC/DC universal input suits complex power supply environments on ships and remote sites.
- Remote O&M: Ethernet remote monitoring function reduces on-site inspection workload.
- Durable & Reliable: Strict industry certifications and optimized circuit design ensure long-term stable operation in harsh conditions.
- Easy Upgrade: Perfect compatibility with the full Flatpack S series modules, convenient for later capacity expansion.
Shenzhen Xingda Shidai Technology Co., Ltd. is a professional supplier focusing on communication power, marine power systems, and data center supporting equipment. Founded in 2021, our headquarters is located in Fangshan, Beijing, with cooperative outlets nationwide. We maintain long-term stable partnerships with ELTEK, Vertiv, Huawei, ZTE, Delta, and other well-known brands. Our product portfolio includes rectifier modules, integrated power cabinets, bulk feed systems, UPS, and storage batteries. All products undergo strict aging tests, load tests, and safety inspections before delivery. We support OEM & ODM customization, with sufficient inventory and fast global delivery. Our products are exported to Southeast Asia, Africa, the Middle East, Europe, and other regions, winning consistent trust from customers worldwide.
A: It provides three optional specifications: 24VDC, 36VDC, and 48VDC.
A: The maximum output current is 125A, and the total output power reaches 5.4kW.
A: Yes, both the Smartpack S controller and Flatpack S rectifiers support hot plug for non-stop maintenance.
A: It supports 85–305VAC and 85–300VDC dual input, adapting to multiple grid modes.
A: Yes, 80A latched LVBD protection is optional to protect batteries and loads.
A: It is equipped with an Ethernet port to support remote monitoring and fault alarm.
A: Dimensions: 482.5 × 44.3 × 250 mm; weight: 4.7kg (excluding rectifiers).
