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LDN481 Series

tech.support@psbel.com

LDN481-24

90-132 / 187-264 VAC (270 - 345 VDC)

1

24 VDC

20 A

LDN481-48

90-132 / 187-264 VAC (270 - 345 VDC)

1

48 VDC

10 A

LDN481-72

90-132 / 187-264 VAC (270 - 345 VDC)

1

72 VDC

6.7 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) Settable with Voltage Selector Bridge

Operating

120 / 240 VAC

90 – 132 / 187 – 264 VAC

Input DC Voltage Range

Rated (without Voltage Selector Bridge)

270 – 345 VDC

Input Frequency

47 – 63 Hz

Input AC Current

Vin = 120 VAC

Vin = 240 VAC

7.2 A

4.3 A

Input DC Current

Vin = 270 VDC

Vin = 345 VDC

2.2 A

1.9 A

Inrush Peak Current

≤ 35 A

Touch (Leakage) Current

≤ 1 mA

Internal Protection Fuse

None, external fuse must be provided

Recommended External Protection

It is strongly recommended to provide external surge

arresters (SPD) according to local regulations

Fuse AT 16A or MCB 16A C

Output Power

480 W

Rated Voltage

(Adjustable Voltage Range)

LDN481-24

LDN481-48

LDN481-72

24 VDC (23 – 28 VDC)

48 VDC (45 – 55 VDC)

72 VDC (72 – 85 VDC)

Continuous Current

LDN481-24

LDN481-48

LDN481-72

20 A

10 A

6.7 A

Overload Limit (Constant Current Mode)

LDN481-24

LDN481-48

LDN481-72

22 A

11 A

7.5 A

Overload Limit (Hiccup Mode) Max. 5 s

LDN481-24

LDN481-48

LDN481-72

30 A

15 A

10 A

Load Regulation

LDN481-24

LDN481-48 / LDN481-72

≤ 1.0%

≤ 0.5%

LDN481-24 / LDN481-48

LDN481-72

≤ 100 mVpp

≤ 200 mVpp

Hold up Time

≥ 35 ms

Protections



Overload, short circuit: Constant current or Hiccup mode

(user settable)



Thermal protection



Output overvoltage

Output Over Voltage Protection

LDN481-24

LDN481-48

LDN481-72

≥ 33 VDC

≥ 68 VDC

≥ 100 VDC