Inverter Category Of C2; Inverter Category Of C3 - IMO HD2 IP Series Instruction Manual

HD2 IP55 High-ingress Protection Series
Note: The EMC standard IEC/EN 61800-3 no longer restricts the power distribution of inverters,
but it specifies their use, installation, and commissioning. Specialized personnel or
organizations must have the necessary skills (including the EMC-related knowledge) for
installing and/or performing commissioning on the electrical drive systems.
C3: Rated voltage lower than 1000 V, applied to environments of Category II. They cannot be
applied to environments of Category I.
C4: Rated voltage higher than 1000 V, or rated current higher or equal to 400 A, applied to
complex systems in environments of Category II.
B.6.1 inverter category of C2
The induction disturbance limit meets the following stipulations:
1. Select an optional EMC filter according to Appendix D and install it following the description
in the EMC filter manual.
2. Select the motor and control cables according to the description in the manual.
3. Install the inverter according to the description in the manual.
4. For the maximum length of the motor cable, see section B.4.1 "EMC compatibility and motor
cable length".
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B.6.2 inverter category of C3
The anti-interference performance of the inverter meets the requirements of environments
Category II in the IEC/EN 61800-3 standard.
The induction disturbance limit meets the following stipulations:
1. Select an optional EMC filter according to Appendix D and install it following the description
in the EMC filter manual.
2. Select the motor and control cables according to the description in the manual.
3. Install the inverter according to the description in the manual.
4. For the maximum length of the motor cable, see section B.4.1 "EMC compatibility and motor
cable length".

Currently in environments in China, the inverter may generate radio
interference, so you need to take measures to reduce the interference.
inverters of C3 category cannot be applied to civilian low-voltage common
grids. When applied to such grids, the inverter may generate radio frequency
electromagnetic interference.
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Technical data