Hot-Swap Rectifier Power Modules

High Power Rectifiers and
Hot-swap Redundant Power Supplies

NEspace high efficiency rectifier module
NEspace High Efficiency Rectifier Module

DongAh Elecomm is South Korea’s number one supplier of high power rectifiers and hot-swap redundant power supplies. Our selection of front end rectifiers provides the building blocks of today’s communication systems, paving the way with higher densities and greater efficiencies. Designing with DongAh Elecomm technology provides a strong foundation of reliability and strength with high efficiency operation, scalability and configurable flexibility.

Power System Flexibility & Reliability

Our rectifiers allow extensive power system flexibility through such features as horizontal or vertical mounting, universal AC inputs, and expansive scalability to allow for future network growth.

Benefits include:

  • Wide range of AC input voltages
  • Hot-pluggable connectors for easy installation
  • Fan cooling with speed controls and nearly silent operation
  • Protection against AC over-voltage with optional protection against loss of neutral for reliable operation even in regions with unreliable AC utility networks
  • DC power systems designed to withstand the most rigorous network power applications

Power System Efficiency

DongAh’s power rectifier modules offer high power density, operating efficiency and advanced control and monitoring features that significantly reduce both capital and operational costs. Our high efficiency power rectifier modules lower total energy consumption and reduce environmental impact.

Advantages include:

  • Long-term product availability
  • Low maintenance
  • High product durability & reliability
  • Global service & support



Power Supplies for Telecom Applications

DongAh’s NEspace and SRM-5450 hot-swap/redundant rectifier modules provide highly efficient, flexible and configurable power in small cell telecommunications systems.


Power for Networks

Our DRM-440 modules are being deployed to major telecommunication companies in the US and Europe, providing power for network systems around the globe.

LED Lighting

Power for LED Lighting

A top LED sign manufacturer uses our NDRM-2100 and NDRM-2115Y rectifier modules to power large indoor and outdoor LED signs and kiosks for hotels, casinos, stadiums and more.

Power Rectifier Module Specifications with Datasheets

Enlarge Model DC Power Dimensions Download PDF
DRM-260 27V @ 56A 4.29 x 13.18″ x 1.69″
DRM-440 54V @ 37A 4.29 x 12.8″ x 1.72″
more info
48V @ 6A 6.85 x 3.0″ x 16.9″ LOPU-A4L datasheet
LPM-225 27V @ 25A 2.59 x 13.03 x 5.11″
NCRM-75 27V @ 75A 15.96 x 4.82 x 2.16″
NDRM-2100 27V @ 100A 15.96 x 4.33 x 3.34″
NDRM-2115Y Hot Swap Power Rectifier Module NDRM-2115Y 24V @ 115A 4.8 x 3.35 x 15.97″
NDRM-2115Y Hot Swap Power Rectifier Module KLTE-413 53.3V @ 13A 4.33 x 5.90 x 11.02″ KLTE-413.pdf
NDRM-2115Y Hot Swap Power Rectifier Module KLTE-430D 53.3V @ 30A 9.13 x 9.84 x 14.25″ KLTE-413.pdf
more info
54V @ 37A 4.26 x 12.67 x 1.62″ NESPACE-48/2K Datasheet
NESPACE-48/3K 54V @ 55A 4.26 x 12.67 x 1.62″
more info
54V @ 5A 11.61 x 6.58 x 22.84″
SRM-5450 54V @ 50A 15.96 x 4.40 x 3.74″

High Efficiency Rectifier Module

LOPU-A4L Power Rectifier

This convection cooled rectifier from DongAh Elecomm’s Cheshire™ series is designed to support expansive growth in small cell 4G/LTE wireless/telecom base stations and network equipment with quick and easy installation and a small footprint in an inconspicuous IP65-rated enclosure. Learn more.

PECO Building

Our NDRM2100 hot swap/redundant rectifier module provides power for digital art displays on top of the PECO building (Philadelphia Electric Company).