Mains power supplies


MS2000/12 and MS2000/24 are two types of mains power supplies which primarily serve for feeding all MORSE
system components. Both types provide back-up of the output DC voltage from the connected battery.

Mains power supplies work as self-acting isolation transformers (SELV) with two levels of output voltage. The lower level serves for supplying connected equipment, the higher level is designed for charging the back-up battery.

The design has been electrically and mechanically (metal case) adapted so that the power supplies can be use in demanding industrial applications. In conjunction with the battery MS2000 works as a UPS (Uninterruptible Power Supply).

Typical areas of use

  • For supplying MORSE system components: all types of radio modems, GPRS modem and other accessories
  • For supplying control systems in common switchboards with radio modems
  • For separately supplying any equipment for 13.8 V, or 24 V DC with a consumption of up to 5 A, or 3.5 A


  • Microprocessor controlled
  • Optimisation of charging and back-up
  • Prevents completely discharging the battery by disconnecting it in time
  • Spares the life of the battery
  • Outputs (open collectors) for indicating:
    • Operation on back-up battery
    • Drop in back-up battery voltage below 11.5 V
  • Protection of primary and secondary side against short-circuiting and over-voltage when supplied from the mains or battery
  • Assembly on a DIN rail or using 2 × M3 screws

Operating manual

Technical parameters

Type MS2000/12 MS2000/24
Nominal supply current 0.5 A 0.5 A
Built-in safety fuse in the primary circuit T4 A T4 A
Nominal output voltage 13.8 V (±0.3 V) 24 V (±0.3 V)
Output voltage ripple at IOUT = 5 A max. 150 mV max. 150 mV
Nominal output current (including charging) 5 A 3.5 A
Maximum charging current according to setting of the internal switch:
   for the battery 2 Ah 0.7 A 0.7 A
   for the battery 6 Ah 1.5 A 1.5 A
   for the battery 12 Ah 2.5 A 2.0 A
Minimum voltage on battery (for disconnection) 10.8 V 21.6 V
MTBF (mean time between failures) > 100 000 hours > 100 000 hours
Power supply 230 V AC / 50 Hz, ±10 % 230 V AC / 50 Hz, ±10 %
Operating temperatures range -30 to +65 °C -30 to +65 °C
Storage temperature range -35 to +85 °C
Diemnsions 104 × 50 × 187 mm 104 × 50 × 186.5 mm
Weights 0.8 kg 0.8 kg
Standards complied
   Electrical safety CSN EN 60 950
   EMC (electromagnetic compatibility) CSN EN 50 0811, CSN EN 55 022 Class B,
CSN EN 61 00062

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