The Zhongheng NPR48-ES is an enterprise- and carrier-grade high-frequency switch-mode telecom rectifier module engineered for continuous 48V DC power distribution. It delivers a nominal output voltage of 53.5V DC (adjustable from 42V to 58V DC), a maximum continuous output current of 30A, a rated capacity of 1800W, and a peak electrical conversion efficiency equal to or exceeding 95.0%.
Pricing is confirmed by project configuration and quantity
Request a quoteThe NPR48-ES comprises an active EMI suppression network, a single-phase APFC boost converter, an LLC half-bridge resonant DC-DC stage, and synchronous secondary rectification. Controlled by an onboard digital signal processor (DSP) linked via a digital communications interface to the centralized supervisory unit (CSU), it complies with international electrical safety and EMC benchmarks including IEC/EN 62368 and EN 55032 Class B.
Eliminates network outages caused by volatile commercial utility grids through its 85V–300V AC operational tolerance. It solves thermal congestion and high operational expenditures (OPEX) in compact outdoor enclosures through its ≥95.0% efficiency, and it minimizes Mean Time to Repair (MTTR) by allowing hot-swappable module replacement without dropping active DC bus loads or disturbing battery float charging.
Ideal for cellular 4G/5G macro and micro base transceiver stations, fiber-to-the-home (FTTH) aggregation nodes, central office DC UPS systems, railway communication and signaling networks, and industrial SCADA 48V backup DC plants.
| Key specifications | Value |
|---|---|
| Rated Output Voltage | 48V DC (42V~58V DC, 标称53.5V) |
| Maximum Output Current | 30A |
| Rated Output Power | 1800W |
| AC Input Voltage Range | 85V AC ~ 300V AC |
| Peak Conversion Efficiency | ≥ 95.0% |
| Operating Temperature Range | -25°C to +70°C |
| Cooling Method | Forced Air Cooling with Intelligent Speed Fan |
| Hot-Swappable Support | Yes (Live Hot-Pluggable / Plug-and-Play without Power Interruption) |
Zhongheng
Featuring a peak efficiency exceeding 93.5%, the NPR48-3G integrates forced air cooling managed by an intelligent variable-speed fan. With advanced Active Power Factor Correction (APFC) and resonant conversion topology, it accepts a wide AC input range from 85V to 300V, supporting active current sharing and live hot-swappability for mission-critical telecommunications infrastructure.
Engineered with peak conversion efficiency exceeding 94.0%, active power factor correction (APFC), and resonant soft-switching topology, the module operates reliably across an ultra-wide AC input range of 85V to 300V AC. Featuring forced air cooling via an intelligent speed-controlled fan, live hot-plug capability, and automated active current sharing, it delivers carrier-grade reliability for continuous telecommunications DC plant infrastructure.
Engineered for harsh operating environments, the 4850C achieves peak conversion efficiency greater than 92.5% and a power factor of 0.99 via advanced Active Power Factor Correction (APFC) and resonant topologies. It features forced-air cooling driven by an intelligent variable-speed brushless fan, seamless live hot-swappability, autonomous active current-sharing across parallel units, and robust protection against input line disturbances, voltage surges, and output anomalies.
Achieving a peak efficiency exceeding 94.5%, the 4850N2 combines full digital control topology with an intelligent speed-regulated brushless DC cooling fan for superior power density. Designed for rugged electrical environments, it features active power factor correction (PFC), comprehensive CAN bus communication, and true live hot-plug capability, guaranteeing carrier-grade reliability and exceptionally high MTBF.
