Data Sheet

CP20.241, CP20.241-C1, CP20.241-S1,
CP20.241-S2, CP20.241-V1, CP20.242
CP-Series
24V, 20A, 480W, SINGLE PHASE
Sep. 2018 / Rev. 1.0 DS-CP20.241-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
24.7. OPERATION ON TWO PHASES
240V
+10%
max.
L2
L1
L3
L
N
PE
Power Supply
AC
DC
The power supply can also be used on two-phases of a three-phase-
system. Such a phase-to-phase connection is allowed as long as the
supplying voltage is below 240V
+10%
.
Ensure that the wire, which is connected to the N-terminal, is
appropriately fused.
The maximum allowed voltage between a Phase and the PE must be
below 300Vac.
24.8. USE IN A TIGHTLY SEALED ENCLOSURE
When the device is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher than
outside. In such situations, the inside temperature defines the ambient temperature for the device.
In the following test setup, the device is placed in the middle of the box, no other heat producing items are inside the
box. The load is placed outside the box.
The temperature sensor inside the box is placed in the middle of the right side of the power supply with a distance of
1cm.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
Case A Case B
Enclosure size 180x180x165mm
Rittal Typ IP66 Box
PK 9519 100,
plastic
180x180x165mm
Rittal Typ IP66 Box
PK 9519 100,
plastic
Input voltage 230Vac 230Vac
Load
24V, 16A; (=80%) 24V, 20A; (=100%)
Temperature inside the box 51.7°C 55.8°C
Temperature outside the box 25.9°C 25.6°C
Temperature rise 25.8K 30.2K
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