Question 1

What are the core electrical conversion metrics and rated output capabilities of the DPC 9U Embedded DC Power System (DPC-SYS-9U-LARGE)?

Accepted Answer

Engineered for aggregation telecom sites and central data nodes, the DPC-SYS-9U-LARGE houses 6 hot-swappable 50A high-frequency rectifier slots, delivering a nominal system capacity of -48V/300A (up to ~17.4kW continuous DC output). The system operates over a wide AC input range of 90 ~ 290 VAC (three-phase five-wire, nominal 380V/220V), delivering full rated power between 176 ~ 290 VAC. The DC output voltage is continuously adjustable from -42 to -58 VDC with a steady-state regulation accuracy ≤ ±0.5%. Boasting a peak efficiency >95.5%, a power factor ≥0.99, and THDi ≤5%, it significantly minimizes upstream diesel generator sizing and utility line losses.

Question 2

What architectural provisions does this system make for modular slot compatibility, current sharing, and DC power distribution expansion?

Accepted Answer

Utilizing a standard 19-inch 9U chassis, the system provides 6 dedicated slots compatible with genuine DPC 50A rectifiers supporting hot-swap insertion and N+1 redundancy. An autonomous digital active current-sharing bus maintains an imbalance below ±3% across the 10%–100% load range without requiring external controller intervention. Supervisory telemetry is governed by the integrated DK04 controller featuring an LCD, RS485, and Ethernet ports with native SNMP and Modbus support. The bottom distribution tier incorporates high-conductivity solid copper busbars with configurable dual battery circuit breakers and dual-stage low voltage disconnect (LLVD/BLVD) branches.

Question 3

What protective standards and resilience measures are implemented in DPC-SYS-9U-LARGE for harsh grid conditions, thermal extremes, and lightning surges?

Accepted Answer

Engineered for unstable grid and demanding environmental profiles, the AC input is equipped with a Class C (Level II) surge protection device rated at 20kA nominal and 40kA maximum discharge (8/20μs), paired with comprehensive DC-side differential/common-mode transient suppression. It operates reliably from -25°C to +65°C (with smart derating above +55°C) within an IP20 enclosure. Rectifiers feature intelligent variable-speed cooling fans in a front-to-rear airflow scheme, complemented by AC over/under-voltage protection, output hardware over-voltage latching, continuous short-circuit current limiting, and automated battery temperature compensation.

Key specifications	Value
System Output Capacity	300 A
Nominal Output Voltage	-48VDC (-42V ~ -58V) VDC
Output Voltage Range	-48VDC (-42V ~ -58V) VDC
AC Input Voltage	90 ~ 290 VAC (3-Phase 5-Wire)
Rectifier Module Slots	6 slots
System Monitoring Controller	DK04 with LCD display and Ethernet port
Power Conversion Efficiency	95.5%
Ingress Protection (IP Rating)	IP20 rack-mount
Physical Dimensions	396 × 482 × 360 mm (9U 19-inch)
Operating Temperature Range	-20°C ~ +65°C

DPC 9U Large Capacity Embedded Telecom DC Power System (-48V 300A 6-Slot)

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What this product is

What this product is

What problem it solves

Who and where it is for

Core advantages

Technical specifications

Applications

Telecom 4G/5G macro cellular base stations and distributed remote power sites

Enterprise-grade cloud data center mission-critical -48V DC power distribution lineups

Utility power grid dispatch centers and high-voltage substation DC switchgear rooms

Railway transit signaling, automated train control, and communications equipment rooms

Frequently asked questions

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DPC 9U Large Capacity Embedded Telecom DC Power System (-48V 300A 6-Slot)

Talk to RICEWIND

Clear support from selection to delivery

What this product is

What this product is

What problem it solves

Who and where it is for

Core advantages

Technical specifications

Applications

Telecom 4G/5G macro cellular base stations and distributed remote power sites

Enterprise-grade cloud data center mission-critical -48V DC power distribution lineups

Utility power grid dispatch centers and high-voltage substation DC switchgear rooms

Railway transit signaling, automated train control, and communications equipment rooms

Frequently asked questions

What are the core electrical conversion metrics and rated output capabilities of the DPC 9U Embedded DC Power System (DPC-SYS-9U-LARGE)?

What architectural provisions does this system make for modular slot compatibility, current sharing, and DC power distribution expansion?

What protective standards and resilience measures are implemented in DPC-SYS-9U-LARGE for harsh grid conditions, thermal extremes, and lightning surges?

What electrical interfaces, terminal block pinouts, and communication features are defined for the DPC 9U embedded DC system, DKD50 controller, and DZY-48/30HV rectifier modules?

Continue exploring

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