2

LDN20 Series

tech.support@psbel.com

LDN20-12

120 - 240 VAC (110 - 345 VDC)

1

12 VDC

1.65 A

LDN20-24

120 - 240 VAC (110 - 345 VDC)

1

24 VDC

0.85 A

Technical parameters are typical, measured in laboratory environment at 25°C and 240 VAC / 50 Hz, at nominal values, after

minimum 5 minutes of operation.

Input AC Voltage Range

Rated (UL certified)

Operating

120 - 240 VAC

90 - 264 VAC

Input DC Voltage Range

Rated

110 - 345 VDC

Input Frequency

47 - 63 Hz

Input AC Current

LDN20-12 / LDN20-24

Vin = 120 VAC

Vin = 240 VAC

0.4 A

0.3 A

Input DC Current

LDN20-12 / LDN20-24

Vin = 110 VDC

Vin = 345 VDC

0.3 A

< 0.1 A

Inrush Peak Current

≤ 50 A

Touch (Leakage) Current

≤ 0.2 mA

Internal Protection Fuse

Not user replaceable

Fuse 1AT

Recommended External Protection

It is strongly recommended to provide external surge

arresters (SPD) according to local regulations

MCB 6 A C curve

Output Power

20 W

Rated Voltage

LDN20-12

LDN20-24

12 VDC (Fixed)

24 VDC (Fixed)

Continuous Current

LDN20-12

LDN20-24

1.65 A

0.85 A

Overload Limit

LDN20-12

Vin = 120 VAC

Vin = 240 VAC

2.60 A

3.25 A

LDN20-24

Vin = 120 VAC

Vin = 240 VAC

1.3 A

1.7 A

Short Circuit Peak Current

LDN20-12

LDN20-24

8 A

4 A

Load Regulation

≤ 1%

≤ 100 mVpp

Hold up Time

≥ 5 ms

Protections

protection

Output overvoltage

Status Signals

Green LED = DC OK

Parallel Connection

Possible for redundancy (with external ORing module)

Efficiency

> 80%

Dissipated Power

< 6 W

1

Ripple and Noise are measured with 20MHz bandwidth, probe terminated with a 0.1

μF MKP parallel capacitor.

NOTE: Power rating, losses, efficiency, ripple, thermal behaviour and start-up may change outside of the nominal rated input range.

Contact factory for details.