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Operating Manual | Attachment and Installation Cooling Units | Multi Controller (MC) – 400 / 460 V, 3~ | 086100124 49/76
4.6.9 Equipotential bonding connections and fuses
1 Functional equipotential bonding (M8-thread), for a
signal reception with low interference between the unit
and the switch cabinet.
2 Fuses (F2, F3) for transformer as protection against
fault current, overload current and short-circuit current.
Fig. 22: Equipotential bonding/fuses
Replacement of fuses
In order to maintain the UL-conformity, only spare fuses with the following specification may be used:
Control fuse
Version: Category “Class CC”, slow-blow, suitable for transformer protection, voltage strength at least 480 V
DTI / DTS 6401 Maximum 3.0 A
DTI / DTS 6501 Maximum 3.0 A
Tab. 15: Fuse specification
Potential equalization provided by customer
If the device is to be integrated into the customer’s existing potential equalization for EMC reasons, a conductor can be
connected at the connecting point of the function potential equalization.
The connecting point is labeled with the necessary circuit symbol.
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