NV175 HIALT Handbook
The unit cover(s)/chassis must not be made user accessible.
The mains input connector is not acceptable for use as field wiring terminals.
For encased products, do not use mounting screws, which penetrate the unit more than 4.5mm.
An internal fuse protects the unit and must not be replaced by the user. In case of internal defect, the unit must be
returned to TDK-Lambda UK LTD or one of their authorised agents.
WARNING: These products are Class 1 and must therefore be reliably earthed and professionally installed in
accordance with the prevailing electrical wiring regulations and the safety standards covered herein.
On units with end fans and IEC 60320 connector, the fan and connector end is permitted to be user accessible.
A suitable mechanical, electrical and fire enclosure must be provided by the end use equipment for mechanical,
electric shock and fire hazard protection.
The ventilation openings on these products must not be impeded. Ensure that there is at least 50mm spacing
between any obstruction and the ventilation openings.
The unit cover/chassis is designed to protect skilled personnel from hazards. They must not be used as part of the
external covers of any equipment where they may be accessible to operators, since under full load conditions, part or
parts of the unit chassis may reach temperatures in excess of those considered safe for operator access.
Energy Hazards:
The power supply contains dangerous voltages and should only be handled by qualified personnel when the power
supply has been disconnected from the mains supply voltage for more than 3 minutes
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17168 issue 9, October 2018