Section 3 Modules Switch-mode power supply units CP-C 24/5.0 and CP-C 24/10.0
M&I – AC 900F Controller 51
Electrical connection
Input side [L, N, protective earth conductor]
Connect the input terminals L, N and the protective earth conductor. The protective
conductor must permanently be connected (protection class I).
Do not plug or unplug the connectors when the unit is energized. The installation
must be in compliance with EN 60950, the supply lines must be equipped with
appropriate disconnecting devices (e.g. line safety switches).
For detailed information on stripping length, cable cross-section, torque and input
side protection, please refer to Section 9, Technical Data.
Output side [L+, L+, L-, L-]
Rate the lines for the maximum output current or provide separate fuse protection.
For details on the output side fuse protection, please refer to Section 9, Technical
Data of the power supply units. To minimize voltage drops, a maximum cable cross-
section should be selected.
Do not plug or unplug the connectors when the unit is energized. The power supply
units are overload proof, short-circuit proof and no-load proof. The secondary
power supply unit side is galvanically isolated from the input and not internally
earthed (SELV). It can be earthed by the user (either L+ or L-), if required (PELV).
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