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HEFENGQIModel: Zhongheng APR48-3G Rectifier Module
Zhongheng APR48-3G 1800W 33A Telecom Switched-Mode Rectifier Module (-48V DC Hot-Swap)
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.
Pricing is confirmed by project configuration and quantity
Request a quote- Rated Output Power
- 1800W compact high-efficiency telecom rectifier output power
- Nominal DC Output Voltage
- -48V DC (nominal -54V DC, adjustable range -42V to -58V DC)
- Rated Output Current
- 33.3A / 37.5A constant current output capability
- Power Conversion Efficiency
- ≥ 95.0% high-frequency switching conversion efficiency
- AC Input 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
What this product is
What this product is
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.
What problem it solves
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.
Who and where it is for
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.
Core advantages
- Delivers 1800W rated capacity at 95% efficiency to curb OPEX
- Ultra-wide 90V to 290V AC tolerance handles unstable power grids
- Blind-mate hot-pluggable drawer permits non-disruptive hot swap
- Autonomous digital load sharing ensures balanced current across modules
- Dual-stage input surge and hardware overvoltage safeguard critical loads
- Smart temperature-regulated cooling fan minimizes operational noise
Technical specifications
| Key specifications | Value |
|---|---|
| Rated Output Power | 1800W compact high-efficiency telecom rectifier output power |
| Nominal DC Output Voltage | -48V DC (nominal -54V DC, adjustable range -42V to -58V DC) |
| AC Input 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 |
| Power Conversion Efficiency | ≥ 95.0% high-frequency switching conversion efficiency |
| Operating Temperature | -40°C to +70°C |
| Rated Output Current | 33.3A / 37.5A constant current output capability |
Applications
01
4G/5G macro and micro base station BBU/RRU DC distribution racks
02
Broadband optical access (FTTx) and telecom OLT/ONU central offices
03
Substation SCADA automation and electrical utility communications
04
Railway signaling, trackside communications, and transport control hubs
Frequently asked questions
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