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1-Phase Power Supply, Primary Switch Mode for Use in Potentially Explosive Areas –
QUINT 24 V DC/5 A/EX
6.4. Connection of Various Types of Network: 100 - 240 V AC Networks
TN-S network
L
N
TN-C network
L
PEN
TT network
L
N
IT network
PE
L N PE
+ –
L N PE
+ –
L N PE
+ –
QUINT
QUINT
QUINT
L N PE
L1
L2
L3
N
PE
L N PE
L1
L2
L3
PEN
L N PE
L1
L2
L3
N
L N PE
L1
L2
L3
QUINT
+–
QUINT
+–
QUINT
+–
QUINT
+ –
Figure 09
Connection Cable:
The device is equipped with COMBICON
connectors. This reliable user-friendly connection
method enables quick device connection and safe
isolation of the electrical connection, if required. Only
operate connectors when the power is switched off.
To maintain UL approvals, use copper cables, which
are designed for operating temperatures of 75°C
(167°F). To maintain GL approval, unused terminal
AC In
L 0 -2 t
0V
compartments should be closed.
The following cable cross sections can be connected:
Solid Flexible AWG Torque
[mm 2 ] [mm 2 ] [Nm] [Ib in.]
1 Input: 0.2 - 2.5 0.2 - 2.5 25 - 14 0.5 - 0.6 4.4 - 5.3
1 pu
0
N
4
5
2 Output:
3 Signal:
0.2 - 2.5
0.2 - 2.5
0.2 - 2.5
0.2 - 2.5
25 - 14 0.5 - 0.6 4.4 - 5.3
25 - 14 0.5 - 0.6 4.4 - 5.3
For reliable and safe-to-touch
connection: Strip 7 mm (0.28 in.)
7 mm (0.28 in.)
from the connector ends.
To maintain EN 60 950/UL 60 950,
? exible cables require ferrules.
6.5. Input ( 1 , Figure 10)
The 100 - 240 V AC connection is made using screw
connections L, N, and 5 .
The device can be connected to single-phase
AC networks or to two external conductors for three-
phase networks (TN, TT or IT network according to
VDE 0100 T 300/IEC 364-3) with nominal voltages of
100 - 240 V AC.
Protecting the Primary Side
The device must be installed according to the
speci ? cations of EN 60 950. It must be possible to
switch off the device using a suitable disconnecting
device outside the power supply. Note that an all-pole
disconnecting device must be provided for two-phase
Figure 10
Additional device protection is not required, as an
internal fuse is present.
Recommended Fuse:
Circuit breaker 6 A, 10 A or 16 A, Characteristic B (or
equivalent). No more than one power supply should be
connected to a fuse or a power switch. When using a
DC input voltage of more than 120 V, a suitable fuse
must be ? tted.
If the internal fuse is blown, this is most
probably due to a device fault. In this
case, the device should be checked and/
or repaired in the factory. The power
supply unit cannot be repaired by the
user and must be replaced by an
equivalent device.
operation using two external conductors for a three-
phase network. For example, primary side line
protection could be used.
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