Question 1

What are the core electrical parameters and energy conversion efficiency of the Huawei R4830G1 rectifier?

Accepted Answer

The Huawei R4830G1 (SKU: HW-REC-R4830G1) is a high-density telecom rectifier module delivering a rated output power of 2000W at -48V DC nominal (adjustable range: -42V DC to -58V DC) with a maximum rated current of 30A. It supports an ultra-wide AC input range of 85VAC to 300VAC (nominal 220VAC). It delivers full 2000W output between 176VAC and 300VAC, transitioning to linear derating between 85VAC and 175VAC. With a peak conversion efficiency exceeding 96%, power factor PF ≥ 0.99, and THD ≤ 5%, the module substantially decreases power loss and optimizes data center/telecom shelter PUE.

Question 2

Which Huawei power subracks are compatible with R4830G1, and how do hot-swapping and parallel current sharing work?

Accepted Answer

The R4830G1 is natively compatible with Huawei embedded power systems such as ETP4830, ETP4890, ETP48150, and various outdoor mini-shelters. It fully supports live hot-swapping without interrupting system operation. Integrated with a CAN communication bus, it communicates seamlessly with controllers like SMU02B and SMU02C for dynamic voltage regulation, alarms, and diagnostics. In parallel multi-rectifier deployments, active current sharing imbalance is maintained below ±5% across 50% to 100% loads, facilitating seamless N+1 redundancy and system expansion.

Question 3

What protection and thermal management features enable the R4830G1 to withstand harsh grid and environmental conditions?

Accepted Answer

Engineered for demanding telecom edge sites, the R4830G1 operates reliably across an ambient temperature range of -40°C to +75°C (with linear derating above +55°C). It utilizes an internal speed-controlled brushless fan for forced air cooling, dynamically modulating RPM to minimize acoustic noise and particulate ingress. For surge and grid disturbances, it features 4kV/5kA surge immunity, sustains up to 415VAC continuous overvoltage without damage, and incorporates AC under/over-voltage shutdown, hardware DC over-voltage latching, output short-circuit hiccup mode, and auto-recovery over-temperature protection.

Key specifications	Value
AC Input Voltage Range	85VAC ~ 300VAC (Nominal 220VAC) VAC
Nominal DC Output Voltage	-48 V DC
Rated Output Power	W
Cooling Method	Built-in temperature-controlled variable-speed fan with forced-air cooling
Power Conversion Efficiency	%
Rated Output Current	A

Huawei R4830G1 High Efficiency Telecom Rectifier Module -48V 30A 2000W

What this product is

What this product is

What problem it solves

Who and where it is for

Core advantages

Technical specifications

Applications

Cellular Macro BTS Shelters

Core Optical Fiber Transmission Offices

Transit Traction Communication Rooms

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