The Zhongheng APR48-3G is a high-efficiency switched-mode telecom rectifier module engineered for access nodes and industrial networks, converting 90V-290V AC to stable -48V DC (1800W/33.3A) with full hot-swap capability and autonomous active load sharing.
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The Zhongheng APR48-3G is a high-efficiency switched-mode telecom rectifier module engineered for access nodes and industrial networks, converting 90V-290V AC to stable -48V DC (1800W/33.3A) with full hot-swap capability and autonomous active load sharing.
The Zhongheng APR48-3G telecom switch-mode rectifier module leverages state-of-the-art high-frequency soft-switching PWM topology and digital microprocessor architecture, specifically designed for -48V cellular telecom base stations, enterprise networks, and outdoor modular power enclosures. Delivering an exceptional conversion efficiency of ≥95.0%, the module maintains full rated output across an ultra-wide AC input range of 90V to 290V AC, incorporating automatic linear power de-rating during deep grid brownouts to safeguard critical infrastructure. From a mechanical and interface standpoint, the APR48-3G features a compact, high-density 1U blind-mate drawer structure equipped with floating self-aligning rear connectors for safe, on-load live replacement without service interruption. The rectifier integrates high-speed CAN/RS485 bus communications, seamlessly interfacing with primary system controller units for continuous remote telemetry, diagnostic signaling, and precision configuration. Robust protection layers include multi-stage input surge suppression, hardware-latched output overvoltage shutdown, active constant-current limiting, and dual ball-bearing intelligent speed-regulated forced-air cooling, ensuring MTBF reliability within harsh operating environments ranging from -40°C to +70°C.
The Zhongheng APR48-3G is a high-efficiency switched-mode telecom rectifier module engineered for access nodes and industrial networks, converting 90V-290V AC to stable -48V DC (1800W/33.3A) with full hot-swap capability and autonomous active load sharing.
| Key specifications | Value |
|---|---|
| Rated Output Power | 1800W compact high-efficiency telecom rectifier output power |
| DC Output Voltage | -48VDC (-42V ~ -58V) |
| AC Input Phase Voltage Range | 90V AC to 290V AC (ultra-wide AC grid input range) |
| Hot-Swap Live Maintenance | Hot-swappable drawer structure, plug-and-play with digital automatic current sharing |
| Cooling Method | Built-in intelligent speed-controlled long-life ball bearing fan cooling |
| Peak Conversion Efficiency | ≥ 95.0% |
| Operating Temperature Range | -40°C to +70°C |
| Rated Output Current | 33.3A / 37.5A constant current output capability |
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