GB
3.5.5
Adapting the upstream fuse /transformer options
Only cooling units with the rated operating voltage 400V / 460V can be optionally connected to a different mains
voltage.
Reconnection takes place via the supply of the primary side of the transformer.
The upstream fuse must match the changed mains voltage; see Adapting the upstream fuse.
1
1
Figure 31 - Transformer options
Voltage Range (V)
50HZ
380-418
380-420
380-420
-
-
-
3.5.6
Collective fault signal
Two connections are provided for connection of the collective fault signal. They are marked with the item
designation SK; see
The fault signaling contact is potential-free.
Ensure that the contact is loaded with a maximum of 230V, 1 A.
Operating Manual DTT 6601 Multicontroller (MC) 086100037 © Pfannenberg GmbH
60HZ
-
-
-
440-480
440-480
440-480
Electrical connection.
The specifications for the factory settings of the transformer are
provided on the yellow connection diagram (1) on the rear side of
the unit.
UL-conformity with the following fuses:
Category "ClassCC", slow-burning.
Transformer - Option
380V
T1/1(0) - T1/3 (380)
400V
T1/1(0) - T1/4 (400)
420V
T1/1(0) - T1/5 (420)
440V
T1/1(0) - T1/6 (440)
460V
T1/1(0) - T1/7 (460)
480V
T1/1(0) - T1/8 (480)
Pre-fuse (Min. 480 V)
Max 4A
Max 4A
Max 4A
Max 4A
Max 2,5A
Max 2,5A
Page 31 / 49