LDT481 Series

3

Asia-Pacific

+86 755 298 85888

Europe, Middle East

+353 61 225 977

North America

+1 408 785 5200

© 2016 Bel Power Solutions & Protection

BCD.00845_AB

Protections

Overload, short circuit: Constant current or

Hiccup mode (user settable)

Thermal protection

Output overvoltage

Output Over Voltage Protection

LDT481-12

LDT481-24

LDT481-48

LDT481-72

≥ 18 VDC

≥ 33 VDC

≥ 68 VDC

≥ 100 VDC

Status Signals

DC OK - green LED

OVERLOAD - red LED

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

Possible for power or redundancy

(with external ORing module)

Efficiency

LDT481-12

LDT481-24 / LDT481-48

LDT481-72

> 87.5%

> 93.5%

> 94%

Dissipated Power

LDT481-12

LDT481-24 / LDT481-48

LDT481-72

< 69 W

< 34 W

< 31 W

2

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

μF MKP parallel capacitor.

3

Pay attention, set the current limitation mode jumper on C.C. mode when connecting more units in parallel.

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

Contact factory for details.

Operating Temperature

UL certified up to 50°C

- 40 to + 70°C

Storage Temperature

- 40 to + 80°C

Derating

- 4.5 W/°C over 50°C

Humidity

Non-condensing

5 - 95% RH

Life Time Expectancy

At 25°C ambient 75% load

63200 h (7.2 years)

Overvoltage Category

Pollution Degree

III (EN50178)

2 (IEC60664-1)

Protection Class

Class I

Isolation Voltage

Input to Output

Input to Ground

Output to Ground

4.2 kVDC

2.2 kVDC

0.75 kVDC

Standards & Approvals

UL508 (certified)

EN60950 (reference)

EN50178 (reference)

EMC Standards

EMC Emission

EN55011 (CISPR11)

EN55022 (CISPR22)

Class A

Class A

EMC Immunity

EN61000-4-2

EN61000-4-3

EN61000-4-4

EN61000-4-5

EN61000-4-11

Level 3

Level 3

Level 3

Level 4

Level 2

Protection Degree

EN60529

IP20

Vibration sinusoidal

IEC 60068-2-6

5-17.8 Hz: ±1.6 mm; 17.8-500 Hz: 2g 2Hours /

axis (X,Y,Z)

Shock

IEC 60068-2-27

30 g 6 ms, 20 g 11 ms;

3 bumps / direction, 18 bumps total)