The power supply unit can be used to supply systems that use the SCS BUS. At the output it supplies a low DC voltage of 27 Vdc with a maximum current of 600 mA and is protected by an integrated fuse (not replaceable) against short circuit and overload.

It isa double insulation safetydevice in compliance with CEI EN60065, so it is assimilable to a SELV source as described in point 411.1.2.5 of CEI 64-8-4. The power supply unit is realized in a 2-module DIN rail container, and its installation must be carried out in accordance with the regulations in force in your country. In general the rules to be respected are: The power supply must always be installed in appropriate enclosures- It must not be exposed to dripping or splashing water. Do not block any ventilation openings. A two-pole switch, with a contact separation of at least 3 mm, should be used and located near the power supply. The switch is intended to disconnect the power supply from the mains and protect it.

Electrical characteristics:

• Nominal voltage: 220 - 240V
• Nominal current: 175 - 185 mA
• Working voltage range: 187 - 265V
• Working frequency range: 47 - 63 Hz
• Power consumption at full load: 21.5W max
• Power dissipation: 5,3W max
• Efficiency at full load: 80% typ.
• Stand-by power: less than 1W
• Operating temperature: 5 - 40 °C
• Integrated fuse (PRI side): F1 T2A 250V (NOT REPLACEABLE)
  

SCS:

• Rated voltage: 27 V +/- 100 mV
• Rated current: 0 - 0.6A
• Rated power: 16.2W