TRIO-PS-2G/3AC/24DC/40
105907_en_00
PHOENIX CONTACT
17 / 25
13
Input
The power supply can be operated on three-phase AC
power grids (star grid) in accordance with the nominal input
voltage. Connection is via the INPUT L1/L2/L3/
connection terminal blocks.
An all-pos. disconnecting device must be present for
operation on three-phase systems.
Figure 11
Network types
13.1
Position of input terminals
Figure 12
Position of input terminals
13.2
Protection of the primary side
Installation of the device must correspond to EN 60950
regulations. It must be possible to disconnect the device
from the voltage using a suitable separator outside the
power supply. For example, the primary-side line protection
is suitable for this (see technical data).
Two internal, approved AC fuses are provided for device
protection. Additional device protection is not required.
Figure 13
Schematic diagram, switching the input
terminals
-
+
L2
L3
L1
N
PE
L1
L2
L3
TN-S
-
+
L2
L3
L1
PEN
L1
L2
L3
TN-C
-
+
L2
L3
L1
N
L1
L2
L3
TT
L2
L3
L1
Input 3 A
C 400-500V
13
14
DC OK
24-28V
Output DC 24V 40A
+
+
-
-
-
Input
Input 3 A
C 400-500V
L1
L2
L3
If an internal fuse trips, this is due to a device
fault. In this case, the device must be
inspected in the factory. Opening the device
or repairing it yourself is prohibited.
(L3)
L2
L1
L1
L2
L3
PE
Input 2/3 A
C 400-500V