Hitachi L100 IP Series, Инструкция по эксплуатации

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Chapter 4 – Installation
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Chapter 4 – Installation
Explanation of IP54 protection provided by enclosure
Generally, the enclosure must provide sufficient protection for persons who use them and for equipment itself.
IP54 enclosure provides protection to some extent and it is not foreseen for very severe environmental
conditions. Here is the explanation of the two digits:
Protection of persons against access to hazardous parts inside the enclosure indicated by the first
characteristic numeral 5:
Protected against access to hazardous parts with wire.
Protection of the equipment inside the enclosure against ingress of solid foreign objects indicated by the
first characteristic numeral 5:
Dust-protected: Ingress of dust is not totally prevented, but dust shall not penetrate in a quantity to interfere with
satisfactory operation of the apparatus or to impair safety.
The inverter shall not be exposed to severe environmental conditions for more than 8 h (test condition).
Protection of the equipment inside the enclosure against harmful effects due to the ingress of water
indicated by the second characteristic numeral 4:
Protected against splashing water: Water splashed against the enclosure from any direction shall have no harmful
effects.
The inverter shall not be exposed to splashing water for more than 10 minutes (test condition).
The unit is not intended for outdoor usage.
Other than in the time specified above, inverter must be operated in the condition of 90% humidity or less.
WARNING the above explanation is intended as an indication. Refer always to the a.m.
standard in the case of any doubt.