MSU120 Installation Instructions

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6. MSU120 Installation Instructions

  • The device is designed for industrial use for assembly into premises with limited access (electrical switchboards).

  • Wiring up must be carried out by an individual with knowledge of the regulation No. 50/78 Coll. The source is designed for assembly into switchboards by attaching either to a mounting plate by means of M3 screws or on to a DIN rail. The mounting plate and DIN rail must be properly grounded in accordance with valid standards. The source must be located in such a way so as not to prevent air circulation necessary for cooling purposes.

  • Conductors must be wired into labelled terminals in accordance with valid standards. Terminals are only designed for connecting copper conductors of max. diameter 2.5 mm2 and do not serve for switching devices under voltage. If there is a larger distance from the power supply to the solar panel or to the accumulator, where installation leads longer than 3m would be required, we recommend wiring in conductors with a greater diameter from the shortest possible distance from the power supply in order to limit power losses in the circuit when it is at maximum charging current.

  • We do not recommend changing accumulator poles when wiring up.

  • Colour coding of low voltage conductors must comply with the requirements of respective standards.

  • The source must be disconnected from the battery and solar panel when replacing fuses. Only the same types of fuses with the same current rating can be used for replacement.

  • When using the device as a source of SELV voltage the extra low voltage side must be electrically and spatially separated from LV conductors.

6.1. Assembly of the Solar power supply

The MSU120 power supply is a special device requiring special assembly. RACOMĀ“s own employees assemble all supplied devices at the user’s premises. For subsequent maintenance RACOM shall train the user’s specialists who will have the Operating regulations for radio data networks and MORSE Firmware – Documentation available to help them.

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