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.
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6. OUTPUT
The output provides a SELV/PELV/ES1 rated voltage, which is galvanically isolated from the input voltage.
The device is designed to supply any kind of loads, including capacitive and inductive loads. If extreme large
capacitors, such as EDLCs (electric double layer capacitors or “UltraCaps”) with a capacitance > 1F are connected to the
output, the unit might charge the capacitor in an intermittent mode.
The output is electronically protected against overload, no-load and short-circuits. In case of a protection event,
audible noise may occur.
Output voltage Nom. 24V
Adjustment range Min. 24-28V Guaranteed value
Max. 30V This is the maximum output voltage which can occur
at the clockwise end position of the potentiometer
due to tolerances. It is not a guaranteed value which
can be achieved.
Factory setting output voltage Typ. 24.1V ±0.2% in “single use” mode at full load, cold unit
Typ. 24.1V ±0.2% in “parallel use” mode at 20A, cold unit
(results to 23.9V ±0.2% at 24A and 25.1V ±0.2% at no
load)
Line regulation Max. 10mV Between 85 and 300Vac input voltage change
Load regulation Max. 100mV Between 0 and 24A in “single use” mode, static value
Typ. 1000mV Between 0 and 20A in “parallel use” mode, static
value, see Fig. 6-2
Ripple and noise voltage Max. 50mVpp Bandwidth 20Hz to 20MHz, 50Ohm
Output current Nom. 24A
1)
At 24V and an ambient temperature below 45°C
Nom. 20A At 24V and 60°C ambient temperature
Nom. 15A At 24V and 70°C ambient temperature
Nom. 20.6A
1)
At 28V and an ambient temperature below 45°C
Nom. 17.1A At 28V and 60°C ambient temperature
Nom. 13A At 28V and 70°C ambient temperature
Derate linearely between +45°C and +70°C
Fuse breaking current Typ. 60A Up to 12ms once every five seconds, see Fig. 6-4.
The fuse braking current is an enhanced transient
current which helps to trip fuses on faulty output
branches. The output voltage stays above 20V.
Overload behavior Continuous current For output voltage above 13Vdc, see Fig. 6-1
Intermittent current
2)
For output voltage below 13Vdc, see Fig. 6-1
Overload/ short-circuit current Max. 29.8A Continuous current, see Fig. 6-1
Typ. 29A Intermitted current peak value for typ. 2s
Load impedance 10mOhm, see Fig. 6-3
Discharge current of output capacitors is not included.
Max. 9.8A Intermitted current average value (R.M.S.)
Load impedance 10mOhm, see Fig. 6-3
Output capacitance Typ. 8 500μF Included inside the power supply
Back-feeding loads
Max. 35V The unit is resistant and does not show
malfunctioning when a load feeds back voltage to
the power supply. It does not matter whether the
power supply is on or off. The absorbing energy can
be calculated according to the built-in large sized
output capacitor.
1) This current is also available for temperatures up to +70°C with a duty cycle of 10% and/ or not longer than 1 minute every 10 minutes.