Q: How does the ETP48300-C9A1 manage rectifier module interoperability, active current sharing, and SMU02B/SMU02C monitoring integration?

The ETP48300-C9A1 subrack accommodates hot-swappable 50A Huawei rectifiers (e.g., R4850G2, R4850N2) using autonomous CAN-bus active current sharing with <±5% imbalance, ensuring N+1/N+2 redundancy without single-point failures. Coupled with the SMU02B or SMU02C controller via internal high-speed buses, it exposes northbound FE, RS485, and SNMP v2/v3 protocols for real-time telemetry. The platform natively orchestrates both VRLA and lithium batteries (such as Huawei ESM series), supporting multi-vendor BMS handshake and staged load shedding.

Q: What environmental tolerance, surge suppression (SPD), and Low Voltage Disconnect (LVD) safeguards are engineered into the ETP48300-C9A1?

Engineered for harsh telecommunication conditions, the ETP48300-C9A1 operates between -40°C and +65°C (linear derating above 55°C) with speed-controlled forced-air cooling in each module. It incorporates Class C/D AC surge protection (nominal 20kA, max 40kA 8/20μs) and dedicated DC surge suppression. The distribution section features independent LLVD (Load Low Voltage Disconnect) and BLVD (Battery Low Voltage Disconnect) contactors, systematically disconnecting non-critical loads prior to complete battery cut-off to extend runtime for critical telecom equipment.

Question 1

What are the core electrical specifications, input grid compatibility, and efficiency metrics of the Huawei ETP48300-C9A1?

Accepted Answer

The Huawei ETP48300-C9A1 (SKU: HW-SYS-ETP48300-C9A1) is a 3U subrack power system featuring 6 × 50A rectifier slots delivering up to 300A (17.4 kW) nominal output across an adjustable range of -42V DC to -58V DC (nominal -48V DC). The system natively supports both 380V/415V 3-phase (4-wire) and 200V/220V/240V 1-phase AC input (85VAC to 300VAC operational phase voltage). Compatible with high-efficiency rectifiers such as the R4850G2 (peak efficiency >96%, PF ≥0.99, THD <5%), it minimizes heat dissipation and OPEX in 5G convergence sites and edge mini-datacenters.

Question 2

How does the ETP48300-C9A1 manage rectifier module interoperability, active current sharing, and SMU02B/SMU02C monitoring integration?

Accepted Answer

The ETP48300-C9A1 subrack accommodates hot-swappable 50A Huawei rectifiers (e.g., R4850G2, R4850N2) using autonomous CAN-bus active current sharing with <±5% imbalance, ensuring N+1/N+2 redundancy without single-point failures. Coupled with the SMU02B or SMU02C controller via internal high-speed buses, it exposes northbound FE, RS485, and SNMP v2/v3 protocols for real-time telemetry. The platform natively orchestrates both VRLA and lithium batteries (such as Huawei ESM series), supporting multi-vendor BMS handshake and staged load shedding.

Question 3

What environmental tolerance, surge suppression (SPD), and Low Voltage Disconnect (LVD) safeguards are engineered into the ETP48300-C9A1?

Accepted Answer

Engineered for harsh telecommunication conditions, the ETP48300-C9A1 operates between -40°C and +65°C (linear derating above 55°C) with speed-controlled forced-air cooling in each module. It incorporates Class C/D AC surge protection (nominal 20kA, max 40kA 8/20μs) and dedicated DC surge suppression. The distribution section features independent LLVD (Load Low Voltage Disconnect) and BLVD (Battery Low Voltage Disconnect) contactors, systematically disconnecting non-critical loads prior to complete battery cut-off to extend runtime for critical telecom equipment.

Key specifications	Value
DC Output Voltage	-48VDC (-42V ~ -58V) V DC
Overall System Efficiency	Up to 96.2% (Gold Standard)
Physical Dimensions	43.6 (1U) × 442 × 255 mm
Acoustic Noise	≤ 55 dBA (at 25°C ambient load)
Ingress Protection Rating	IP20 (Indoor Dust & Finger Proof)
Dielectric Withstand Voltage	3000VAC Input to Ground (< 5mA)
Operating Temperature Range	-40°C ~ +65°C
Rectifier Module Slots	6 × 50A Slots
AC Input Mode	380V 3-Phase / 220V 1-Phase Compatible
System Monitoring Controller	SMU02B / SMU02C

Huawei ETP48300-C9A1 Large-Capacity Embedded DC Power System (48V 300A Subrack)

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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

5G Wireless Aggregation Macro Sites

Central Optical Fiber Transmission Offices

Containerized Modular Edge Data Centers

Railway Traction Control & Signalling Rooms

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Huawei ETP48300-C9A1 Large-Capacity Embedded DC Power System (48V 300A Subrack)

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

5G Wireless Aggregation Macro Sites

Central Optical Fiber Transmission Offices

Containerized Modular Edge Data Centers

Railway Traction Control & Signalling Rooms

Frequently asked questions

What are the core electrical specifications, input grid compatibility, and efficiency metrics of the Huawei ETP48300-C9A1?

How does the ETP48300-C9A1 manage rectifier module interoperability, active current sharing, and SMU02B/SMU02C monitoring integration?

What environmental tolerance, surge suppression (SPD), and Low Voltage Disconnect (LVD) safeguards are engineered into the ETP48300-C9A1?

Continue exploring

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