Telecommunications Power Conversion Solutions

Telecommunication SolutionsSchaefer’s specializes in solutions for telecommunications installations in both local and remote sites. All solutions are pure sinewave to allow for the cleanest power to improve AC equipment performance.
Our wide operating temperatures allow for use beyond the typical office and industrial applications, including telecom equipment for central and offsite power plants, broadcast transmitters and studio systems, data center IT and power systems, utility substations, SCADA, and battery backup systems.

telecommunications power conversion
  • 12VDC to 800Vdc+ inputs
  • Built to meet UL and cUL safety certifications
  • FCC Class B EMI for sensitive loads
  • -40ºC to +55ºC operating temperature
  • Improved performance on AC equipment
  • Temperature controlled cooling fans
  • Option for hard wired installation
  • Digital displays indicate output voltage, output current, output power, input voltage, frequency, temperature and alarms
  • 100% burn-in
  • We can integrate one of our Static Switches for zero crossover switching

To ensure a high reliability and quality of our power supplies, they have to pass through internal testing for high industrial requirements. Furthermore, they can be tested against increased shock and vibration resistance, as well as extreme environmental conditions. All components are selected according to criteria of durability, availability and performance. According to customer requirements national and international standards can be tested in cooperation with external laboratories.

  • EN 50178
  • EN 60664-1
  • EN 60950-1
  • EN 61000-6-2
  • EN 61000-6-4
  • EN 55011 / EN 55022 class A
  • EN 61140

By default, all devices are designed with electronic current limiting, overvoltage protection and continuous short circuit protection. Optionally, the modules can be expanded as follows:

  • Inrush current limiting
  • Reverse polarity protection for DC input
  • Decoupling diode for redundant / parallel operation
  • Active current sharing for parallel operation
  • Hot-pluggable solutions
  • Monitoring of input and output voltage
  • Output programmable
  • Power factor correction (PFC) for single phase input
  • Temperature compensated charging voltage
  • Automatic / manual selection of charging characteristics
  • Remote ON / OFF (inhibit)

By default, all modules will be offered as a 19″ module or 19″ sub-rack according to IP20.  Optionally, the modules can be expanded as follows:

  • Wall mount, chassis mount, DIN-rail mount, 19″ rack or customized design
  • Fan or liquid cooled
  • Mating connectors, wiring and monitoring instruments in accordance to the customers’ requirements
  • Digital or analog V- and A-meters
  • Monitoring & programming via potentiometer, analog signals or RS232 / IEEE488 interfaces
  • Designed for a high level of shock and vibration
  • Tropical protection finish on all circuit boards and components to ensure an increased protection category to protect the module from extreme climatic conditions
  • Robust enclosure that can withstand wind, sun, salt water, dirt or dust.
  • Hermetically sealed enclosure for high protection category
Product Features
  • 12VDC to 800Vdc+ inputs
  • Built to meet UL and cUL safety certifications
  • FCC Class B EMI for sensitive loads
  • -40ºC to +55ºC operating temperature
  • Improved performance on AC equipment
  • Temperature controlled cooling fans
  • Option for hard wired installation
  • Digital displays indicate output voltage, output current, output power, input voltage, frequency, temperature and alarms
  • 100% burn-in
  • We can integrate one of our Static Switches for zero crossover switching
Engineering Standards

To ensure a high reliability and quality of our power supplies, they have to pass through internal testing for high industrial requirements. Furthermore, they can be tested against increased shock and vibration resistance, as well as extreme environmental conditions. All components are selected according to criteria of durability, availability and performance. According to customer requirements national and international standards can be tested in cooperation with external laboratories.

  • EN 50178
  • EN 60664-1
  • EN 60950-1
  • EN 61000-6-2
  • EN 61000-6-4
  • EN 55011 / EN 55022 class A
  • EN 61140
Electrical Features

By default, all devices are designed with electronic current limiting, overvoltage protection and continuous short circuit protection. Optionally, the modules can be expanded as follows:

  • Inrush current limiting
  • Reverse polarity protection for DC input
  • Decoupling diode for redundant / parallel operation
  • Active current sharing for parallel operation
  • Hot-pluggable solutions
  • Monitoring of input and output voltage
  • Output programmable
  • Power factor correction (PFC) for single phase input
  • Temperature compensated charging voltage
  • Automatic / manual selection of charging characteristics
  • Remote ON / OFF (inhibit)
Mechanical Features

By default, all modules will be offered as a 19″ module or 19″ sub-rack according to IP20.  Optionally, the modules can be expanded as follows:

  • Wall mount, chassis mount, DIN-rail mount, 19″ rack or customized design
  • Fan or liquid cooled
  • Mating connectors, wiring and monitoring instruments in accordance to the customers’ requirements
  • Digital or analog V- and A-meters
  • Monitoring & programming via potentiometer, analog signals or RS232 / IEEE488 interfaces
  • Designed for a high level of shock and vibration
  • Tropical protection finish on all circuit boards and components to ensure an increased protection category to protect the module from extreme climatic conditions
  • Robust enclosure that can withstand wind, sun, salt water, dirt or dust.
  • Hermetically sealed enclosure for high protection category