Tel+86 17621197907Serving 56+ countries
RICEWIND
DPC DUMB-4850H Pure White Background Hardware Shot 2
DpcModel: DUMB-4850H

DPC DUMB-4850H Wall/Rack Mounted Telecom DC Power Distribution Box (-48V 100A/150A)

The DPC DUMB-4850H is a compact, wall-mounted and 19-inch rack-compatible telecom DC power distribution and supervisory system engineered for nominal -48V DC applications with a maximum system capacity of up to 150A. Integrating utility AC mains input distribution, DC branch circuit breakers, high-capacity battery connection terminals, an intelligent central supervisory unit (CSU), and automatic low-voltage disconnect (LVD) circuitry, it provides carrier-grade uninterrupted DC power in space-constrained network installations.

Talk to RICEWIND

Need to confirm a model, specification, or project configuration? Our team can follow up by email or phone.

Request a quoteWhatsApp
Tel+86 17621197907

Clear support from selection to delivery

360°Technical support
N+Service commitment
3Steps shipping
100%Customer satisfaction
System Nominal Voltage
48V DC
Maximum System Capacity
150A
AC Input Voltage
90V AC ~ 290V AC
Power Distribution Units
AC Input, DC Dist & Battery Fuses
Operating Temperature Range
-40°C ~ +75°C
Hot-Swappable Support
Live Hot-Swappable

What this product is

What this product is

Architecturally, the DUMB-4850H is an integrated power box constructed from heavy-gauge industrial galvanized steel, segregated internally into an AC mains input section, hot-plug rectifier bays, a DC distribution field, and digital monitoring processing circuitry. The rectifier modules utilize active power factor correction (PFC) coupled with an isolated DC-DC resonant converter stage. The distribution plane houses configurable DC circuit breakers and battery disconnect fuses managed via microprocessor-driven BLVD/LLVD contactors, fully compliant with ITU-T, ETSI, and telecom industry EMC/safety standards.

What problem it solves

The DUMB-4850H eliminates critical field risks common to edge telecom deployments, such as rectifier burnout from severe AC brownouts and grid surges, thermal derating in poorly ventilated environments, and catastrophic lead-acid or lithium battery destruction caused by uncontrolled deep discharges. It also solves operational visibility challenges in remote sites by providing digital telemetry and trip-alarm surveillance across all input and output breakers.

Who and where it is for

Ideal for 4G/5G small cell sites, remote radio heads (RRH), microwave backbone repeater shelters, fiber access node (FTTx/OLT) terminals, trackside railway communication cabinets, electrical utility substation automation panels, and various indoor/outdoor wall-mounted or integrated cabinet deployments.

Core advantages

  • Wide input voltage range (90V-290V AC) with active power factor correction (APFC) ensures high resilience against severe grid voltage sags in remote edge sites.
  • Supports hot-swappable 50A rectifiers with up to 150A system capacity, delivering high-availability N+1 redundancy and flexible modular scalability.
  • Integrated dual-stage low-voltage load disconnect (BLVD/LLVD) and battery fuse protection prevent deep battery discharge and extend backup lifespan.
  • Features local LCD interface and RS485/SNMP remote telemetry, strictly complying with industry standards for real-time fault reporting and remote management.

Technical specifications

Key specificationsValue
Maximum System Capacity150A
AC Input Voltage90V AC ~ 290V AC
Power Distribution UnitsAC Input, DC Dist & Battery Fuses
System Nominal Voltage48V DC
Operating Temperature Range-40°C ~ +75°C
Hot-Swappable SupportLive Hot-Swappable
Overall System EfficiencyUp to 96.2% (Gold Standard)
Ingress Protection RatingIP20 (Indoor Dust & Finger Proof)
Acoustic Noise≤ 55 dBA (at 25°C ambient load)
Dielectric Withstand Voltage3000VAC Input to Ground (< 5mA)

Applications

01

5G small cell densification and indoor Distributed Antenna System (DAS) master distribution power supply

02

Railway signaling, trackside telemetry cabinets, and train control radio communications hubs

03

Substation SCADA automation, protection relay panels, and Remote Terminal Units (RTUs)

04

Remote solar-hybrid/grid-tied microwave transmission repeaters and satellite earth stations

Frequently asked questions

Continue exploring

Dpc

DPC DUM4850H3 Genuine Telecom Hardware Shot 3
DpcModel: DUM4850H3

DPC DUM4850H3 Indoor Integrated Large-Capacity DC Power System Cabinet (-48V 300A/600A)

Engineered for carrier-grade applications, the cabinet incorporates AC power distribution, modular rectifier subracks, multi-circuit DC distribution, and an advanced DPC Central Power Controller with LCD. It features high conversion efficiency exceeding 95%, active Power Factor Correction (PFC), intelligent forced-air thermal management, and comprehensive two-stage low-voltage disconnection (LLVD/BLVD) to ensure 99.999% uptime.

View detailsRequest a quote
DPC 4850C Genuine Telecom Hardware Shot 2
DpcModel: 4850C

DPC 4850C Heavy-Duty Telecom Switching Power Rectifier Module (-48V 50A 2900W)

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.

View detailsRequest a quote
DPC DZY24100B Genuine Telecom Hardware Shot 3
DpcModel: DZY24100B

DPC DZY24100B High-Current High-Frequency 24V DC Rectifier Module (24V 100A 2400W)

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.

View detailsRequest a quote
DPC DZY4815HIV Genuine Telecom Hardware Shot 1
DpcModel: DZY4815HIV

DPC DZY4815HIV Compact Micro-Station High-Frequency Telecom Rectifier Module (-48V 15A 870W)

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.

View detailsRequest a quote
Products