The Zhujiang SMR3004D is a carrier-grade high-power switch-mode rectifier module engineered for telecommunication networks, delivering a nominal 48V DC output at up to 50A and a rated power of 2900W with an adjustable operating range of 42V to 58V DC.
Pricing is confirmed by project configuration and quantity
Request a quoteArchitecturally, the SMR3004D consists of a high-efficiency front-end APFC stage that accepts a wide 90V to 290V AC input, achieving a power factor above 0.99 while mitigating total harmonic distortion (THD). The isolated DC-DC stage employs full-bridge soft-switching resonance to produce a low-ripple, highly stabilized 48V DC supply. An onboard supervisory microcontroller monitors thermal sensors, phase parameters, and feedback loops to control autonomous single-wire parallel current sharing, precise current limit curves, and multi-tier protection circuits against input transients, output overvoltage clamping (OVP), short circuits, and thermal runaway in compliance with global telecom EMC and safety standards.
The SMR3004D addresses operational challenges in remote telecom base stations subject to unstable, fluctuating AC mains. Its 90V~290V AC dynamic tolerance eliminates frequent rectifier dropouts and battery cycle exhaustion in rural grids. Integrated thermal derating algorithms prevent catastrophic thermal failures in enclosed outdoor cabinets, while its zero-arcing hot-swappable interface allows live module replacement without inducing DC bus transients or telecom transmission dropouts.
Optimized for 4G/5G macro BTS power plants, central office (CO) telecom power racks, distributed cellular shelter sites, microwave transmission links, and industrial DC UPS systems for utility automation and railway communications.
| Key specifications | Value |
|---|---|
| Rated Output Voltage | 48V DC (42V~58V DC) |
| Maximum Output Current | 50A |
| Rated Output Power | 2900W |
| AC Input Voltage Range | 90V AC ~ 290V AC |
| Peak Conversion Efficiency | ≥ 92.0% |
| Operating Temperature Range | -25°C to +65°C |
| Cooling Method | Forced Air Cooling with Intelligent Speed Fan |
| Hot-Swappable Support | Yes (Live Hot-Pluggable / Plug-and-Play without Power Interruption) |
Zhujiang
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