2

LDT480 Series

tech.support@psbel.com

LDT480-24

400 - 500 VAC / 470 - 725 VDC

3

24 VDC

20 A

Technical parameters are typical, measured in laboratory environment at 25°C and 400 VAC / 50 Hz, at nominal values, after

minimum 5 minutes of operation.

Input AC Voltage Range

Rated, three phase (UL certified)

Operating

400 – 500 VAC

340 – 550 VAC

Input DC Voltage Range

470 – 725 VDC

Input Frequency

47 - 63 Hz

Input AC Current

Vin = 400 VAC

1.3 A

Vin = 500 VAC

1.1 A

Input DC Current

Vin = 470 VDC

1.2 A

Vin = 725 VDC

0.8 A

Power Factor Correction

Active

> 0.9

Inrush Peak Current

≤ 60 A

Touch (Leakage) Current

≤ 0.5 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 3x 6.3 AT or 3x MCB 6 A C curve

or 3x 4 A D curve

Output Power

480 W

Rated Voltage (Adjustable Voltage Range)

24 VDC (23 – 28 VDC)

Continuous Current

20 A

Overload Limit

28 A

Short Circuit Peak Current

50 A

Load Regulation

≤ 1.0%

≤ 50 mVpp

Hold up Time

≥ 20 ms

Protections

Overload, short circuit: Hiccup mode

Thermal protection

Output overvoltage

Output Over Voltage Protection

≥ 33 VDC

Status Signals

DC OK - green LED

OVERLOAD - red LED

DC OK - dry contact (NO, 24 VDC / 1 A)

Parallel Connection

Possible for redundancy (with external ORing module)

Efficiency

> 92%

Dissipated Power

< 42 W

1

Ripple and Noise are measured with 20 MHz 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.