Question 1

What are the core electrical specifications and power conversion efficiency of the Huawei ETP48200-C5B4 system?

Accepted Answer

The ETP48200-C5B4 is a 19-inch 5U rack-mounted DC power system delivering a nominal -48VDC output (adjustable between -42VDC and -58VDC) with a maximum system capacity of 200A (up to 12kW). It houses up to four hot-swappable R4850G2 rectifier modules (each rated at 50A/3000W). Supporting an ultra-wide AC input range of 85VAC to 300VAC, the system achieves a peak conversion efficiency >96%, power factor (PF) ≥0.99, and THD ≤5%, minimizing energy dissipation in enterprise telecom and edge datacenter environments.

Question 2

How does the system handle rectifier compatibility, active current sharing, and DC power distribution scalability?

Accepted Answer

The ETP48200-C5B4 provides 4 rectifier slots compatible with Huawei R4850G2 and R4850N2 modules, supporting hot-plugging and autonomous active current sharing with an imbalance rate under ±5%. Monitored by an SMU02C advanced controller with LCD, it interfaces via CAN, RS485, and SNMP/Web for northbound OSS integration. DC distribution incorporates dual battery inputs (up to 2x 125A MCBs) alongside modular branch circuit breakers, enabling tailored distribution for mission-critical core telecom nodes and peripheral loads.

Question 3

What reliability features, environmental tolerances, and battery protection mechanisms are engineered into the ETP48200-C5B4?

Accepted Answer

Operating reliably from -40°C to +65°C (with linear derating above 55°C), the system incorporates intelligent forced-air cooling and robust surge protection (AC 20kA/40kA, DC 10kA/20kA, 8/20µs waveform). Battery security is governed by dual Low Voltage Disconnect (LVD) contactors: LLVD (Load LVD) sheds non-critical branches to maximize backup runtime for vital nodes, while BLVD (Battery LVD) disconnects the battery banks at safety cut-off thresholds (default 43.2VDC) to permanently prevent irreversible cell damage from deep discharge.

Key specifications	Value
System Output Capacity	200A (-48VDC)
Physical Form Factor	5U rack-mounted (19-inch mounting)
Rectifier Module Slots	4 slots (maximum configuration: 4x R4850G2)
Controller Unit	SMU02C intelligent main controller with LCD
Battery Protection	Dual low-voltage disconnect (LLVD load disconnect + BLVD battery disconnect)

Huawei ETP48200-C5B4 5U Rackmount Telecom DC Power System 200A

What this product is

What this product is

What problem it solves

Who and where it is for

Core advantages

Technical specifications

Applications

Telecom macro and indoor distribution sites

Edge computing and aggregation facilities

Railway transport and industrial command centers

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