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Huawei OPM40M pure white studio product shot
HuaweiModel: OPM40M

Huawei OPM40M Outdoor Integrated Micro-Station AC-DC Power Converter Module (-48V 40A Convection)

The Huawei OPM40M is an outdoor integrated carrier-grade AC-DC power converter module engineered for telecom micro-sites, delivering a regulated nominal output of -48V DC at up to 40A (approximately 2000W) utilizing pure natural convection cooling.

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Rated Output Voltage
-48VDC (-42V ~ -58V)
Maximum Efficiency
≥ 96.0%
Operating Temperature Range
-40°C ~ +75°C
Cooling System
Natural Convection (Fanless Silent Design)
Protection Features
Over-voltage, Short-circuit, Over-temperature, Surge
Hot-Swappable Support
Yes (Live Plug-and-Play Support)

What this product is

What this product is

Architecturally, the OPM40M integrates an ultra-wide AC input stage, carrier-grade surge protective devices (SPD), an active boost PFC pre-regulator, and an isolated LLC resonant DC-DC converter managed by high-speed microcontrollers. It embeds local DC distribution intelligence, telemetry monitoring circuitry, and industrial bus communications (RS485/CAN) for seamless integration with site controllers.

What problem it solves

It resolves frequent operational failures caused by rural grid instabilities, fan blockages in dusty outdoor conditions, severe thermal throttling, and real-estate constraints on pole-mounted equipment, eliminating single-point mechanical cooling failures and reducing field dispatch costs.

Who and where it is for

Tailored for 5G/4G outdoor micro-cell base stations, smart pole-mounted small cells, distributed RRU/AAU radio clusters, outdoor edge compute nodes, and mission-critical wayside railway communication gear.

Core advantages

  • Fanless natural convection architecture provides completely silent operation and removes mechanical points of failure.
  • High electrical conversion efficiency exceeding 96%, cutting thermal dissipation losses and lowering site power overhead.
  • Resilient wide AC input range (85V AC to 300V AC) coupled with 4kV/6kV integrated surge immunity for harsh grid conditions.
  • Compact, IP-rated hardened enclosure optimized for direct pole, wall, and tower mounting under extreme climates.

Technical specifications

Key specificationsValue
Rated Output Voltage-48VDC (-42V ~ -58V)
Maximum Efficiency≥ 96.0%
Operating Temperature Range-40°C ~ +75°C
Cooling SystemNatural Convection (Fanless Silent Design)
Protection FeaturesOver-voltage, Short-circuit, Over-temperature, Surge
Hot-Swappable SupportYes (Live Plug-and-Play Support)
Total Harmonic Distortion (THD)≤ 5% (Total Harmonic Distortion)
Power Factor & THD≥ 0.99 at Rated Load
Standard ComplianceCE, UL, RoHS, IEC 60950, EN 300 386

Applications

01

5G street-level small cells and coverage hole infill deployments on existing street furniture.

02

Direct power feeding for pole-top remote radio units (RRU) and active antenna units (AAU).

03

Power distribution for smart city sensor hubs, roadside cameras, and wireless backhaul nodes.

04

Off-grid and grid-tied edge computing installations in harsh industrial outdoor locations.

Frequently asked questions

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