The DPC 4850C is a heavy-duty, telecom-grade high-frequency switching power rectifier module designed for continuous operation in mission-critical DC power plants. Operating from a wide single-phase AC input range of 90V AC to 290V AC, it delivers a stabilized nominal -48V DC output (field-adjustable from -43V to -58V DC) with a maximum continuous output current of 50A and a rated output power of 2900W.
Pricing is confirmed by project configuration and quantity
Request a quoteArchitecturally, the DPC 4850C employs a dual-stage power electronic conversion circuit. The input stage utilizes an active Boost PFC converter operating in continuous conduction mode to enforce near-unity power factor and suppress input harmonic distortion according to international grid standards. The isolated DC-DC stage uses a Phase-Shifted Full-Bridge (PSFB) zero-voltage switching (ZVS) topology that steps down and rectifies high-voltage internal DC into tightly regulated telecom -48V power with low EMI and ripple. The entire unit is supervised by an industrial microcontroller managing dynamic thermal throttling, autonomous current sharing, and safe hot-swap blind-mate backplane communications.
The 4850C directly solves field challenges related to erratic AC utility networks, lightning surges, and unscheduled maintenance downtime in remote telecommunication shelters. Its wide 90V–290V AC operational window prevents premature battery bank discharge during severe voltage dips. In addition, its precision thermal-controlled air channels and self-locking hardware overvoltage protection (OVP) guard against component thermal fatigue and catastrophic downstream telecom load damage caused by runaway rail voltages.
Ideal for wireless cellular macro base stations (4G/5G BTS, BBU, RRU), central offices, broadband optical line terminals (OLT), enterprise telecom server racks, electric utility substation DC panels, and railway trackside signaling communication hubs requiring uninterrupted, battery-backed -48V DC power.
| Key specifications | Value |
|---|---|
| Rated Output Voltage | -48V DC (-43V ~ -58V DC) |
| Maximum Output Current | 50A |
| Rated Output Power | 2900W |
| AC Input Voltage Range | 90V AC ~ 290V AC |
| Peak Conversion Efficiency | ≥ 92.5% |
| 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) |
Dpc
Built on high-efficiency Active Power Factor Correction (APFC) and soft-switching topologies, the unit delivers peak conversion efficiency exceeding 92.0% across a wide 90V AC to 290V AC mains window. It integrates intelligent speed-controlled forced-air cooling and native live hot-plug capability, delivering high power density, millisecond-level transient stability, and telecom-grade MTBF.
Featuring a peak conversion efficiency of ≥ 93.0% and an integrated high-frequency soft-switching resonant design, the DZY4815HIV minimizes thermal dissipation within confined 1U/2U sub-racks. It combines internal dynamic fan-assisted cooling with intelligent digital load sharing and robust surge protection, delivering field-proven carrier-grade reliability across demanding ambient conditions.
Featuring a digital signal processor (DSP) core and resonant LLC soft-switching topology, the module achieves an outstanding peak conversion efficiency above 95%, drastically minimizing thermal dissipation and site operating costs. Built with active power factor correction (PFC > 0.99), forced intelligent fan cooling, and true hot-swap capabilities, it guarantees uninterrupted operation across volatile electrical networks.
Featuring a peak energy conversion efficiency exceeding 94.0%, the rectifier employs active power factor correction (APFC) coupled with advanced high-frequency soft-switching resonance topology. Forced cooling via an internal variable-speed fan ensures silent, reliable operation across extended temperature ranges. Built for critical live hot-swapping and autonomous active load sharing, the unit delivers carrier-grade power availability and stringent electromagnetic compliance.
