Ferropac UPS

Uninterruptible stabilised power supplies




 The MSE series is a range of stabilised power supplies according to the ferroresonant principle in combination with a battery and an integrated charger. The MS-series is suitable for mounting in a 19” industrial rack.

These series are built into a robust aluminium casing. Due to the special design of the casing, forced fan cooling is not necessary. The transformer will transfer its heat directly to the aluminium side panels. Air will flow along the aluminium panels by means of natural heat convection, supplying a sufficient cooling of the unit.

The absence of cooling fans and other sensitive components makes the MS series extremely reliable.

A MSE unit is excellently suitable to cope with black outs, brown-outs, line dips and surges and guarantees an uninterruptible supply of output voltage


General specifications


  • Uo= 230VAC *)
  • Line regulation
  • Load regulation
  • Transformer efficiency: 80-90%
  • Max. short-circuit current: 73A
  • Isolation test voltage (output-case): 1000VDC

*) other output voltages on request.


DC Output 

  • Waveform: square wave
  • Uo=24 VDC *)
  • Line regulation: 2%
  • Load regulation: 4%
  • Transformer efficiency: 80-90%

*) other output voltages on request.


Battery operation

Charge voltage: 28,6/27,4 VDC



See brochure



  • Other line frequencies
  • Input-voltages 24 V AC to 600 VAC
  • Output voltages 12 V DC to 300 VDC
  • Lower ripple <100 mV pp
  • Multiple or Redundant operation
  • Fast battery charger for larger batteries



  • Stabilized output and UPS in one unit
  • Fast switchover between mains and battery mode
  • Battery with Under Voltage Protection
  • Battery can be disconnected for maintenance
  • Potential free contact for mains failure indication
  • Short circuit proof
  • Protected inst continuously overload
  • High efficiency
  • Strong suppression of transients
  • High reliability
  • According to IEC 742/EN 60742
  • Cooling natural heat convection, no forced fan cooling necessary
  • Rugged aluminium casing
  • IP20
  • CE approved
  • Suitable for comer made adaptions
  • Wide range of input and output voltages
  • Wall or feet mounted
  • Multiple or redundant operation
  • Battery backup



Brochure ferropac.pdf

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