Power & Utility Systems in the Majotel Product Line

Majortel Power Systems meet or exceed equipment application requirements for today’s growing new technology networks.  The utility systems include telecom grade switch-mode 125V rectifiers or 130V high-frequency isolated dc/dc converters in a feature rich mounting shelf with integrated remote communication package. Each shelf is 1.75” tall (1U), 11” deep and occupies a standard 19” wide rack space. Existing deployments are approved for substation auxiliary dc power systems.

Rectifier System

The Majortel dc Power system, MTS130/20AT-1U, is designed with a maximum of 2800W @ 140V using two (2) power modules, communication module and integrated distribution circuit breaker. Configure the dc power supply output voltage using the front panel buttons, therefore, selecting electronically controlled operation from 100 to 150Vdc. This adjusting feature facilitates multiple application requirements from float charging batteries with 135V dc or powering static 125V to 130V dc power loads like switchgear circuit breaker controls.


130V Power System

Each system is designed to occupy a true 1U rack space in an EIA standard 19″ wide rack and under 11″ deep.  Installations can include one or two compact, high density and reliable switch-mode rectifiers at 10 amps each for a total system capacity output configuration of 2800W (20A).

The integrated system includes a simple 2-pole output breaker configuration suitable for connections to an existing bus, individual load or substation battery charger. Selectable Software Operation Modes: Battery Charger or Load-Only*.

Ordering Assembly Numbers:
 – rack system with 19″ ears, controller and 1 rectifier (10A)
 – rack system with 19″ ears, controller and 2 rectifiers (20A)
temperature compensation probe included in the kits

(* default mode)

Converter System

The Majortel dc/dc Converter system is a sleek, compact design that is ideal for applications requiring 48V dc power from a 125V-130V dc power source or substation ESS. Each MTD48/50-130-1U system is designed to occupy a true 1U (1.75” tall) rack space in a standard 19” wide rack and under 11”deep. Typical installations include two compact, high density and reliable high frequency 25 amp converters, for a total system capacity configuration of 2900W @ 58V output.


130V to 48V DC/DC Converter

MTD48/50-130-1U converter systems include a simple Load 1 and Load 2 breaker distribution to support multiple isolated output circuit configurations and the MTS-Com centralized man-to-machine interface.  The system power capacity is preconfigured for 50A applications. Each dc-dc converter module is hot-swap capable, facilitating field replacement in a matter of minutes.

Install one or two modules with automatic load sharing based on physical presence in the system. #FaultTolerantPower

Ordering Assembly Numbers:
 – rack system with 19″ ears, controller and 1 converter module (25A)
 – rack system with 19″ ears, controller and 2 converter modules (50A)

Product Features:

» Full Power; Wide Input Ranges
» Complete System Design
» Extended Temperature Operations; Up to 75ºC
» System Capacity range from 1440W to 2900W
» Easy, Manageable monitor screen
» Programmable alarms on dry-contacts

» Front-to-Back Isolation
» Integrated Remote Communication Package
» N+1 Configuration Capabilities
» Quick Check LED indications
» Standard 19” wide rack and under 11” deep
» Built-in circuit breaker distribution


» Infrastructure System Security
» Network Telemetry Back-Haul
» IT Private Networks
» Substation Battery Charger

» Inter-Office Telecommunications
» Dispatch Data Inter-Connectivity
» Auxiliary Control & Instrumentation
» Substation Auxiliary DC Power

See the DC Power Product Selection Guide

To find out more information on all the Utility configured power systems we offer click here or contact us today!