The Heda EPMU03 is a carrier-grade industrial central supervisory monitoring unit engineered for telecom -48V DC power and environmental supervisory systems, providing real-time acquisition and control over distribution panels, rectifiers, and battery plants.
Pricing is confirmed by project configuration and quantity
Request a quoteBuilt on an embedded 32-bit RISC processing core with galvanic isolation circuitry and active noise suppression, the EPMU03 coordinates the operation of multiple rectifier modules, AC/DC distribution channels, and battery strings via dual RS485 and RS232 serial buses, conforming strictly to YD/T telecom standards and rigorous industrial EMC specifications.
Eliminates blind-spot failures in base station power infrastructure, prevents catastrophic battery thermal runaway through precision multi-stage float/boost management, and ensures rapid notification of mains outage, DC overvoltage, and surge protective device (SPD) trips.
Tailored for telecom macro base stations, micro-cell deployments, outdoor integrated cabinets, microwave relay points, and tower company edge infrastructure.
| Key specifications | Value |
|---|---|
| System Nominal Voltage | -48V DC |
| Communication Interfaces | RS485, RS232 |
| Supported Protocols | Modbus, Heda Protocol |
| Display Interface | LCD Screen with Multi-Language Operator UI |
| Operating Temperature Range | -20°C to +65°C |
| Hot-Swappable Support | Yes (Live Hot-Pluggable / Plug-and-Play without Power Interruption) |
Heda
Featuring a conversion efficiency of ≥92.0% and an ultra-wide AC input range of 90V AC to 290V AC, this module incorporates intelligent variable-speed fan cooling, hot-swappable connectivity, and autonomous active current sharing, ensuring uninterrupted power availability across demanding environments from -25°C to +65°C.
Featuring a peak energy conversion efficiency exceeding 92.5%, the unit accepts an ultra-wide AC input range from 90V to 290V AC, incorporating active power factor correction, precision autonomous current sharing, and true hot-plug capability. It is specifically designed for space-constrained micro-stations and harsh field grid environments.
Engineered with high-conductivity oxygen-free copper busbars and a fanless passive cooling architecture, the DCDU-12B achieves greater than 99.8% electrical transmission efficiency while eliminating rotating component failures. It pairs full front-facing service accessibility with integrated dry-contact alarm circuitry, offering robust surge withstand and carrier-class electromagnetic shielding for zero-downtime mission-critical telecom deployments.
Engineered for carrier-grade applications, the cabinet incorporates AC power distribution, modular rectifier subracks, multi-circuit DC distribution, and an advanced DPC Central Power Controller with LCD. It features high conversion efficiency exceeding 95%, active Power Factor Correction (PFC), intelligent forced-air thermal management, and comprehensive two-stage low-voltage disconnection (LLVD/BLVD) to ensure 99.999% uptime.
