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Conformity to the Low Voltage Directive in the EU
If installed according to the guidelines given below, inverters marked with CE are considered as
compliant with the Low Voltage Directive in Europe.
1. The ground terminal G should always be connected to the ground. Do not use only a
residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB)* as
the sole method of electric shock protection. Be sure to use ground wires whose size is
greater than power supply lines.
* With overcurrent protection.
2. When used with the inverter, a molded case circuit breaker (MCCB), residu-
al-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) or
magnetic contactor (MC) should conform to the EN or IEC standards.
3. When you use a residual-current-operated protective device (RCD)/earth leakage circuit
breaker (ELCB) for protection from electric shock in direct or indirect contact power lines or
nodes, be sure to install
type B
of RCD/ELCB
on the input (primary) of the inverter if the
power source is three-phase 200/400 V. For single-phase 200 V power supplies, use
type
A
.
When you use no RCD/ELCB, take any other protective measure that isolates the electric
equipment from other equipment on the same power supply line using double or reinforced
insulation or that isolates the power supply lines connected to the electric equipment using
an isolation transformer.
4. The inverter should be used in an environment that does not exceed Pollution Degree 2
requirements. If the environment conforms to Pollution Degree 3 or 4, install the inverter in
an enclosure of IP54 or higher.
5. Install the inverter, AC or DC reactor, input or output filter in an enclosure with minimum
degree of protection of IP2X (Top surface of enclosure shall be minimum IP4X when it can
be easily accessed), to prevent human body from touching directly to live parts of these
equipment.
6. To make an inverter with no integrated EMC filter conform to the EMC directive, it is nec-
essary to connect an external EMC filter to the inverter and install them properly so that the
entire equipment including the inverter conforms to the EMC directive.
7. Do not connect any copper wire directly to grounding terminals. Use crimp terminals with tin
or equivalent plating to connect them.
8. To connect the three-phase or single-phase 200 V class series of inverters to the power
supply in Overvoltage Category III or to connect the three-phase 400 V class series of in-
verters to the power supply in Overvoltage Category II or III, a supplementary insulation is
required for the control circuitry.
9. When using inverters at an altitude of more than 2000 m (6600 ft), note that the basic in-
sulation applies to the insulation degree of the control circuitry. At an altitude of more than
3000 m (9800 ft), inverters cannot be used.
10. The power supply mains neutral has to be earthed for the three-phase 400 V class inverter.
11. The inverter has been tested with EN61800-5-1 5.2.3.6.3 Short-circuit Current Test under
the following conditions.
Short-circuit current in the supply: 10 kA
Maximum 240 V
Maximum 480 V