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Conformity with Low Voltage Directive in the EU
If installed according to the guidelines given below, inverters marked with CE can be considered to be compliant
with the Low Voltage Directive 73/23/EEC.
1. Be sure to earth the grounding terminal zG. Use an earth wire sized more than that of the power wires
used in the power dispatch system. Do not use a residual-current-operated protective device (RCD)* or a
ground fault circuit interrupter(GFCI)* as a sole mechanism of electric shock protection.
*With overcurrent protection.
2. Use an MCCB, RCD/GFCI or MC in conformity with EN or IEC standards.
3. When an RCD/GFCI is used for protection of electric shock caused by a direct or indirect contact to the
live parts, insert a type B RCD/GFCI in input lines (primary) of the inverter for the 3-phase 208 V or 460 V
power source.
4. Use inverters in an environment that does not exceed pollution degree 2. If inverters are to be used in an
environment with pollution degree 3 or 4, place them in an enclosure of IP54 or above.
5. To protect human body from an electric shock caused by a contact to live parts, install inverters, AC
reactor and input /output filter in the enclosure of IP2X. In the case where human body easily contacts to
live parts, a top panel of the enclosure should be IP4X or higher.
6. Do not directly connect a copper wire to the grounding terminal. Use a crimp terminal with tin or equivalent
plating to connect the earth wire.
7. When using inverters at an altitude of more than 6600ft(2000 m), note that the basic insulation applies to
the insulation degree of the control circuitry. At an altitude of more than 9800ft(3000 m), inverters cannot
be used.
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