Product Description
⚡ 4kW RECTIFIER | 97.8% PEAK EFFICIENCY | 75A | CAN PARALLEL | AIR COOLING
DSA4000G-S54F · 4kW High-Efficiency Telecom Rectifier
97.8% Half-Load Efficiency
Next-generation high-density rectifier module engineered for 48V telecom base stations, central offices, and industrial power systems. Delivers 4kW output (75A) with an industry-leading 97.8% efficiency at half load and 95% at full load. Features universal 80-300Vac input, forced air cooling, CAN parallel control, and a compact 1U×2.5U×288mm form factor. Designed for reliable operation from -40°C to +75°C.
⚡ Unmatched Efficiency & Power Density
🏆 97.8% Peak Efficiency Industry-leading efficiency at half load significantly reduces energy loss and cooling requirements, lowering OPEX in high-uptime installations.
📏 High-Density 1U Form Factor 4kW output in 1U × 2.5U × 288mm – maximizes rack space utilization for high-power telecom shelves and distributed power systems.
🌍 Wide Universal Input 80~300Vac, 45-65Hz – compatible with single-phase and three-phase grids worldwide, tolerant of unstable mains and voltage sags.
🔋 Wide Adjustable Output 42V to 58Vdc (53.5V nominal), 75A continuous current – ideal for 48V LiFePO₄ and lead-acid battery charging as well as direct load supply.
🔄 CAN Parallel Operation Built-in CAN bus enables seamless paralleling of multiple units with active current sharing, supporting N+1 redundancy and system scalability up to 40kW+.
💨 Efficient Air Cooling Forced air cooling with intelligent fan speed control ensures stable full-load operation even at high ambient temperatures, while minimizing audible noise.
🌡️ Wide Operating Temperature -40°C to +75°C (derating above 45°C) – reliable performance in outdoor cabinets, remote shelters, and harsh climate zones.
🛡️ Comprehensive Protections Input over/under voltage, output overvoltage (≥59V), overcurrent, short circuit, over temperature – all with auto-recovery for maximum system uptime.
🔧 Applications & Benefits
📡 4G/5G macro base stations
🏢 Telecom central offices
🔋 Battery backup & charging systems
⚙️ High-density power shelves
🌞 Solar hybrid telecom sites
🔄 N+1 redundant power architecture
🏢 Telecom central offices
🔋 Battery backup & charging systems
⚙️ High-density power shelves
🌞 Solar hybrid telecom sites
🔄 N+1 redundant power architecture
The DSA4000G-S54F is the ideal choice for operators seeking to reduce energy costs while increasing power density. Its 97.8% half-load efficiency yields substantial savings over traditional 95% efficient rectifiers. CAN parallel allows intelligent load sharing and remote monitoring via site controllers.
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📋 Technical Specifications (DSA4000G-S54F)
| Model | DSA4000G-S54F |
| Input Voltage Range | 80 ~ 300Vac (single/three-phase compatible) |
| Input Frequency | 45 ~ 65Hz |
| Output Voltage Range | 42 ~ 58Vdc (adjustable, nominal 53.5Vdc) |
| Max Output Current | 75A |
| Output Power | 4000W (4kW) |
| Efficiency (Half Load) | ≥97.8% @ 50% load, nominal input |
| Efficiency (Full Load) | ≥95% @ 100% load, nominal input |
| Operating Temperature | -40°C ~ +75°C (derating above 45°C) |
| Storage Temperature | -40°C ~ +85°C |
| Cooling Method | Forced air cooling (internal fan with speed control) |
| Ingress Protection | IP20 (indoor use) |
| Communication Interface | CAN 2.0 (supports parallel operation, current sharing, remote monitoring) |
| Parallel Capability | Yes, via CAN – up to 10+ units, active current sharing |
| Dimensions (W × H × D) | 1U × 2.5U × 288 mm (1U ≈ 44.45mm, 2.5U ≈ 111.1mm; depth 288mm) |
| Weight (approx.) | ≤2.0 kg |
| Input Protections | Undervoltage lockout, overvoltage shutdown (auto-recovery) |
| Output Protections | Overvoltage (≥59Vdc), overcurrent, short circuit (hiccup) |
| Temperature Protection | Over temperature shutdown with auto-recovery |
| MTBF | >200,000 hours @ 25°C (Telcordia SR-332) |
| Compliance | RoHS, UL60950-1 (reference), EN55022 Class A, IEC61000-4 series |
97.8% efficiency advantage: Compared to a 95% efficient unit, the DSA4000G-S54F saves over 115W of heat dissipation per module at half load – reducing cooling costs and improving system reliability.
📐 Integration & Derating Information
- Form factor: 1U height × 2.5U width – fits standard 19″ telecom subracks and power shelves.
- Connectors: Rear plug-in type (AC input, DC output, CAN, signal) – hot-swap compatible.
- Cooling clearance: Allow 30mm minimum airflow clearance at intake and exhaust.
- Derating curve: 100% output up to 45°C, linearly derating to 50% output at 75°C.
- Altitude derating: Required above 2000m – consult factory for derating factors.
- Status indicators: Front-panel LEDs for input OK, output OK, alarm/communication status.
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