Product Description
☀️ SOLAR TELECOM RECTIFIER | 4000W | 96% EFFICIENCY
DSD4000-S54F · 4000W Solar Power Supply
For 48V Telecom & Communication Systems
High-efficiency photovoltaic (PV) to DC power module designed for telephone communication base stations, remote shelters, and off-grid telecom sites. Converts 120~440Vdc PV input (MPPT 150~430Vdc) to stable 53.5Vdc / 80A output. Peak efficiency exceeds 96%, supports CAN parallel operation, and operates reliably from -40°C to +75°C.
☀️ Key Features & Benefits
⚡ High Efficiency Peak efficiency ≥96% (half load) and ≥95% at full load – reduces energy loss and cooling requirements.
🔌 Wide Input & MPPT Range Input 120~440Vdc, MPPT tracking 150~430Vdc – maximizes solar panel energy harvest even under partial shading or low irradiation.
📡 CAN Parallel Operation Supports up to multiple units in parallel with active current sharing via CAN protocol – ideal for system expansion and redundancy.
❄️ Extreme Temperature Performance Operates from -40°C to +75°C with derating above 45°C. Reliable cold start at -40°C for outdoor installations.
🛡️ Comprehensive Protections Output overvoltage (≥58.5V), overcurrent, short circuit, over temperature, input undervoltage (120±5V), input overvoltage (440±5V).
🔧 Low Ripple & Noise Ripple voltage ≤200mVp-p (20MHz) – clean power for sensitive telecom equipment.
📊 Remote Control & Monitoring CAN communication for remote on/off, voltage/current readback, alarm status, and parallel system management.
🏭 Robust Mechanical Design Metal enclosure, forced air cooling, compact size (281.3×105×40.8mm), weight ≤2.0kg.
🔒 Safety & Compliance
✅ UL60950-1 / UL508 approved
✅ EN55032 Class A (EMI)
✅ IEC61000-4-2, -3, -4, -5, -6, -8, -11
✅ Isolation: Input-PE 2500Vdc, Input-Output 3700Vdc
✅ RoHS & Halogen-free
✅ EN55032 Class A (EMI)
✅ IEC61000-4-2, -3, -4, -5, -6, -8, -11
✅ Isolation: Input-PE 2500Vdc, Input-Output 3700Vdc
✅ RoHS & Halogen-free
Meets stringent telecom standards: surge immunity line-to-line 4kV, ESD contact 6kV/air 8kV, burst 4kV. Designed for high-reliability outdoor and indoor telecom cabinets.
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📋 Technical Specifications (DSD4000-S54F)
| Model No. | DSD4000-S54F (V01) |
| Input Voltage Range | 120 ~ 440Vdc (MPPT range 150~430Vdc) |
| Rated Input Voltage | 350Vdc |
| Max Input Current | 21A |
| Inrush Current | ≤30A @250Vdc |
| Output Voltage Range | 42 ~ 58Vdc (typical 53.5Vdc) |
| Max Output Current | 80A |
| Max Output Power | 4000W |
| Efficiency | ≥96% (half load) / ≥95% (full load) @350Vdc |
| Ripple & Noise | ≤200mVp-p (20MHz bandwidth) |
| Hold-up Time | ≥8ms |
| Line Regulation | ≤144mV |
| Load Regulation | ≤144mV |
| Output Voltage Tolerance | ≤0.5% |
| Output Current Tolerance | ≤1% |
| Temperature Coefficient | ≤±0.02%/℃ |
| Input Undervoltage Protection | 120±5Vdc (recover 130±5Vdc) |
| Input Overvoltage Protection | 440±5Vdc (recover 390±5Vdc) |
| Output Overvoltage Protection | ≥58.5Vdc |
| Short Circuit Protection | Auto-recovery (hiccup mode) |
| Over Temperature Protection | Yes (auto-recovery) |
| Communication Interface | CAN (support parallel operation & remote monitoring) |
| Indicators | Green (power), Yellow (protection/alarm), Red (HVSD/ESTOP/fan fault) |
| Operating Temperature | -40°C ~ +75°C (derating above 45°C) |
| Storage Temperature | -40°C ~ +85°C |
| Humidity (Operating/Storage) | ≤90% / ≤95% (non-condensing) |
| Altitude | ≤2000m (derating above 2000m) |
| Cooling | Forced air (internal fan) |
| Isolation Voltage | Input-PE: 2500Vdc; Input-Output: 3700Vdc; Output-PE: 707Vdc |
| Safety Standards | UL60950-1, UL508 (24V model), CSA C22.2 No.60950-1 |
| EMC Compliance | EN55032 Class A, IEC61000-4-2/3/4/5/6/8/11 |
| Dimensions (W×H×D) | 281.3 × 105 × 40.8 mm |
| Weight | ≤2.0 kg |
☀️ Optimized for Solar Telecom: Built-in MPPT algorithm (150~430Vdc), wide input range, and high efficiency reduce PV panel requirements. CAN parallel enables easy scaling from 4kW to 40kW+ systems. Front-panel LED status indicators for quick field diagnosis.
🔌 Wiring & Installation Overview
- PV Input: Terminals 1,2 (PV+), 3,4 (PV-) – accept up to 440Vdc
- Output: Terminals 13,14 (48V+), 11,12 (48V-) – 80A max
- Pre-charge: Dedicated pre-charge terminals (11′,12′) for soft start
- CAN bus: Terminals 7 (CANH), 9 (CANL) for parallel communication
- PE Ground: Terminals 5,6 for safety earth
- Parallel up to 10 units with active current balancing
- Derating: Output power reduces linearly from 100% @45°C to 50% @75°C
- Altitude derating required above 2000m
- Forced air cooling – ensure adequate airflow clearance
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