Inovance Monarch NICE-L-C-4037F

2 Installation and Wiring
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53
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a
b
b≥1/5·a
7 Grounding terminal (PE)
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The grounding terminal of the main circuit must be tied to the ground reliably with

may be abnormal or damaged.
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Do not connect this terminal to the neutral conductor of the power supply.
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The impedance of the PE conductor must be able to withstand the large short
circuit current that may arise when a fault occurs.
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Select the size of the PE conductor according to the following table:
󶙽Size of PE conductor
Cross-sectional Area of a Phase
Conductor (S)
Min. Cross-sectional Area of
Protective Conductor (Sp)
󶙮
2
S
16 mm
2
󶙮
2
16 mm
2
S
>
35 mm
2
S/2
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Use a yellow/green cable as the PE conductor.
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It is recommended that the controller be installed on the conductive metal plane.
Ensure that the entire conductive back of the controller is in good contact with the
installation plane.
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󶍾
8 Upstream protection device
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Install a proper protection device on the power input side to provide protections on
overcurrent, short circuit and electrical isolation.
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When selecting the protection device, consider the current capacity of the power
cable, system overload capacity and short circuit capacity of upstream power
distribution. Generally, make selection according to the recommended values in
Table 3-2
.