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APR8-4 series is an economical and ultra-thin rail-type power supply that meets German industrial standards. It is suitable for installation on 35/7.5 or 35/15 rails. In order to save space, the body is designed to be 18mm (1SU) and 36mm (2SU) width.

EKR8-4111805
APR8-4111812
APR8-4111815
APR8-4111824
APR8-4111848
Output
DC Voltage
5V 12V
15V
24V
48V
Rated Current
2.4A
1.25A
1A
0.63A
0.32A
Rated Power
12W 15W 15W 15.2W
15.4W
Ripple and Noise (max)
80mVp-p
 120mVp-p
120mVp-p
150mVp-p
240mVp-p
Voltage Adjustment Range
4.5-5.5V 10.8-13.8V 13.5-18V 21.6-29V 43.2-55.2V
Voltage Accuracy
⼠2.0%
⼠1.0%
 ⼠1.0%
⼠1.0%
⼠1.0%
Linear Adjustment Rate
⼠1.0%
⼠1.0% ⼠1.0% ⼠1.0% ⼠1.0%
Load Adjustment Rate
⼠1.0%
⼠1.0% ⼠1.0% ⼠1.0% ⼠1.0%
Start and Rise Time
2000ms,80ms/230VAC, 2000ms,80ms/115VAC (Under Full Load)
Hold Time (Typ.)
300ms/230VAC, 12ms/115VAC (Under Full Load)
Input
Voltage Range
85-264VAC (277VAC Available), 120-370VDC (390VDC Available)
Frequency Range
47-63Hz
Efficiency (Typ.)
80%
85% 85.5% 86% 87%
Alternating Current (Typ.)
0.5A/115VAC, 0.25A/230VAC
Surge Current (Typ.)
Cold Start: 25A/115VAC, 45A/230VAC
Protection 
Overload
110-145% of rated output power
When the output voltage is less than 50%, it is in hiccup mode, and it can automatically recover after the abnormal load condition is removed.
When the output voltage is 50%-100%, it is in constant current mode, and it can automatically recover after the abnormal load condition is removed.
Over-voltage
5.75-6.75V
14.2-16.2V
18.8 - 22.5V
30 - 36V
56.5-64.8V
Protection mode: Turn off the output, clamp with the Zener diode


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