LEC480-48

## LEC480 Series 

480 W AC-DC DIN Rail Switching Power Supply 

LEC480 Series is Bel Power Solutions AC-DC converter series featuring a cost-effective, energy efficient green power supply solution for standard DIN-rail mounting. The products offer a high level of stability and immunity to noise for industrial control equipment, machinery, and other industrial equipment in a variety of harsh environments. 

These light weight AC-DC converters have an extremely compact design and the standard rail installation for space saving. With good EMC performance, compliant with international IEC/EN/UL 62368, UL 61010 standards for EMC and safety. 

## **FEATURES** 

- Input voltage 85 - 264 VAC (universal) or 120 - 370 VDC 

- Output voltage 12 V, 24 V, 48 V (adjustable) 

- Operating ambient temperature range -30°C to +70°C 

- Efficiency up to 94% 

- High I/O isolation test voltage up to 3000VAC 

- DC OK function 

- Active PFC, PF > 0.95 

- Output short circuit, over-current, over-voltage & over-temperature protection 

- Meets the requirements of IEC/EN/UL 62368-1, UL 61010, UL 508 

- DIN rail TS-35/7.5 or 15 mountable 

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- Ultra slim design 

- Dimensions 48 x 125 x 131.5 mm (1.89 x 4.92 x 5.17 in) 

## **APPLICATIONS** 

- Industrial control equipment 

- Machinery 

- Harsh environment applications 

**belfuse.com/power-solutions** 

LEC480 Series 

2 

## **1. MODEL SELECTION** 

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MAX.<br>INPUT VOLTAGE  OUTPUT  MAX OUTPUT  MAX OUTPUT<br>MODEL EFFICIENCY [ 1] CAPACITIVE<br>RANGE  VOLTAGE  CURRENT  POWER  [2]<br>LOAD<br>85 - 264 VAC<br>LEC480-24 24 V 20 A 94 % 4700 µF  480 W<br>(120 - 370 VDC)<br>85 - 264 VAC<br>LEC480-48 48 V 10 A 94 % 2700 µF 480 W<br>(120 - 370 VDC)<br>**----- End of picture text -----**<br>


1 Typical, at 230 VAC input 

2  See DERATING CURVES on page 4 

## **2. INPUT SPECIFICATIONS** 

All specifications are measured at Ta = 25°C, humidity <75 % nominal input voltage and rated output load unless otherwise specified. 

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PARAMETER DESCRIPTION / CONDITIONS MIN TYP MAX UNIT<br>AC Input 85 264 VAC<br>Input voltage<br>DC Input 120 370 VDC<br>Input frequency 47 63 Hz<br>115 VAC 5<br>Input current A<br>230 VAC 2.5<br>115 VAC 20<br>Inrush current  [3] A<br>230 VAC 40<br>115 VAC 0.99<br>Power factor<br>230 VAC 0.95<br>Leakage current 240 VAC 0.8 mA<br>**----- End of picture text -----**<br>


3 Cold start 

## **3. OUTPUT SPECIFICATIONS** 

All specifications are measured at Ta = 25°C, humidity <75 % nominal input voltage and rated output load unless otherwise specified. 

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PARAMETER DESCRIPTION / CONDITIONS MIN TYP MAX UNIT<br>LEC480-24 24 28<br>Adjustable output voltage  [3] VDC<br>LEC480-48 48 55<br>LEC480-24 20<br>Output current A<br>LEC480-48 10<br>Output voltage accuracy Full load range ± 1 %<br>Line regulation Rated load ± 0.5 %<br>Load regulation 0% - 100% load ± 1 %<br>LEC480-24 100<br>Ripple & noise [ 4] mVpp<br>LEC480-48 120<br>Temperature coefficient ± 0.03 %/ °C<br>Minimum load 0 %<br>Hold-up time 16 22 ms<br>DC-OK signal [ 5] 30 VDC / 1 A max.<br>**----- End of picture text -----**<br>


3  The output voltage can be adjusted by the output adjustable resistance ADJ, turn clockwise. 

4  Measured with 20 MHz bandwidth, output parallel 47 µF electrolytic capacitor and 0.1 µF ceramic capacitor. 

5  When the output voltage is normal, the relay is connected. As soon as the output voltage dips below 90% Vo, the relay is disconnected. 

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tech.support@psbel.com **belfuse.com/power-solutions** 

LEC480 Series 

3 

## **4. PROTECTIONS** 

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PARAMETER DESCRIPTION / CONDITIONS MIN TYP MAX UNIT<br>Hiccup mode, continuous, auto recovery<br>Short circuit protection<br>Recovery time < 10s after the short circuit disappear<br>Normal / high temperature: Vout shutdown, auto recovery 110 200<br>Over current protection % Io<br>Low temperature: auto recovery 105<br>Vout may clamp (auto recovery) or latch off  LEC480-24 29 35<br>Over voltage protection V<br>(restart required) LEC480-48 56 60<br>OTP start 90<br>Over temperature protection [ 6] °C<br>OTP release (auto recovery) 60<br>**----- End of picture text -----**<br>


6 230 VAC, 100% Io 

## **5. ENVIRONMENTAL SPECIFICATIONS** 

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PARAMETER DESCRIPTION / CONDITIONS MIN TYP MAX UNIT<br>Operating temperature -30 +70 °C<br>Storage temperature -40 +85 °C<br>Temperature derating +50°C to +70°C 2.5 %/°C<br>Input voltage derating AC Input voltage between 85 - 100 VAC /120 - 140 VDC 1.0 %/VAC<br>Operating, non-condescending 20 90<br>Humidity %RH<br>Storage, non-condescending 10 95<br>Operating 2000 m<br>Altitude<br>Derating of 5°C / 1000 m for operating altitude > 2000 m<br>MTBF MIL-HDBK-217F @ 25 °C 300 000 hrs<br>**----- End of picture text -----**<br>


## **6. EMC SPECIFICATIONS** 

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PARAMETER DESCRIPTION / CONDITIONS CLASS / LEVEL / CRITERION<br>Conducted emissions EN 55032 / CISPR 32  Class B<br>Radiated emissions EN 55032 / CISPR 32  Class B<br>Harmonic current IEC/EN 61000-3-2    Class A & Class D<br>ESD immunity IEC/EN 61000-4-2,    Contact ±6 kV / Air ±8 kV Performance Criterion A<br>Radiated field immunity IEC/EN 61000-4-3,    10 V/m Performance Criterion A<br>Electrical fast transient IEC/EN 61000-4-4,    ± 2 kV Performance Criterion A<br>Surge immunity IEC/EN 61000-4-5,    Line to line ±2 kV / Line to ground ±4 kV Performance Criterion A<br>Conducted immunity IEC/EN 61000-4-6,    10 VRMS Performance Criterion A<br>Voltage dips, interruptions IEC/EN 61000-4-11,   0%, 70% Performance Criterion A<br>**----- End of picture text -----**<br>


## **7. SAFETY SPECIFICATIONS** 

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PARAMETER DESCRIPTION / CONDITIONS MIN TYP MAX UNIT<br>Safety standards & approvals Meets the requirements of EN 62368-1, UL 61010, UL 508<br>Safety class Class I<br>Input to Ground 2000<br>Isolation test [ 7] Input to Output 3000 VAC<br>Output to Ground 500<br>Insulation resistance At 500 VDC 100 MΩ<br>**----- End of picture text -----**<br>


7  Electric strength test for 1 min., leakage current <10 mA 

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© 2021 Bel Power Solutions & Protection                    BCD.20175_A   29 September 2021 

LEC480 Series 

4 

## **8. MECHANICAL SPECIFICATIONS** 

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PARAMETER DESCRIPTION / CONDITIONS MIN TYP MAX UNIT<br>48 x 125 x 131.5 mm<br>Dimensions<br>1.89 x 4.92 x 5.17 in<br>Weight 980  g<br>Case [ 8] Material: Metal (AL1100, SPCC) and Plastic (PC940)<br>Cooling Convection (Natural air flow)<br>**----- End of picture text -----**<br>


8  When the power supply is in use, the enclosure of the product needs to be connected to the system grounding. 

## **9.  DERATING CURVES** 

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100 100<br>85<br>Input Voltage:<br>50 85 - 264 VAC Ambient Temperature:25°C<br>120 - 370 VDC<br>-30 50 70 85 100 264 VAC<br>120 140 370 VDC<br>Ambient Temperature [°C] Input Voltage<br>Figure 1. Temperature Derating Curve Figure 2. Input Voltage Derating Curve<br>100<br>100<br>95 LEC480-48<br>98 LEC480-12<br>90<br>96 85<br>LEC480-48 80<br>LEC480-24<br>94<br>75<br>92 70<br>65<br>90 60<br>85 115 230 264 10 25 40 50 65 75 90 100<br>Input Voltage [VAC] Output Current [%]<br>Output Power [%] Output Power [%]<br>]<br>y [<br>Efficiency [%]<br>**----- End of picture text -----**<br>


Figure 3. Efficiency vs Input Voltage Derating Curve (Full Load) 

Figure 4. Efficiency vs Output Load Derating Curve (Vi = 230 VAC) 

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tech.support@psbel.com 

**belfuse.com/power-solutions** 

LEC480 Series 

5 

## **10.  MECHANICAL DRAWINGS** 

All dimensions are in mm [in] General tolerance ±1.00 mm [±0.039 in] Wire range 28-10 AWG Tightening torque max. 0.4 Nm Mounting DIN Rail TS35 (rail needs to be connected to safety ground) 

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Top View<br>General tolerance ±1.00 mm [±0.039 in]<br>Wire range 28-10 AWG<br>Tightening torque max. 0.4 Nm<br>Mounting DIN Rail TS35<br>(rail needs to be connected to safety ground)<br>131.50 [5.177] 6.35 [0.250]<br>5 4 3 2 1<br>LED<br>ADJ<br>DC OK<br>Side View Front View<br>PIN FUNCTION<br>1 -Vo<br>6 7 8<br>2 -Vo<br>OUTPUT<br>3 -Vo<br>TERMINAL<br>4 +Vo<br>140.30 [5.524] 6.35 [0.250] 5 +Vo<br>6 AC (N)<br>INPUT<br>TERMINAL 7 AC (L)<br>8<br>GROUNDING<br>SCREW *<br>DC ON LED Output status indicator<br>(green)<br>ADJ Output adjustable resistor<br>Bottom View Grounding<br>screw ( ) DC OK SIGNAL Monitors the output voltage<br>on the output terminals<br>* Pin 7 and the grounding screw are interconnected.<br>  Either Pin 7 or the grounding screw need to be<br>  connected to earth.<br>48.00 [1.890]<br>125.00 [4.921]<br>130.60 [5.142]<br>**----- End of picture text -----**<br>


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Figure 5. Mechanical Drawing<br>**----- End of picture text -----**<br>


**NUCLEAR AND MEDICAL APPLICATIONS** - Products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. 

**TECHNICAL REVISIONS** - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. 

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**Asia-Pacific EMEA North America** +86 755 298 85888 +353 61 49 8941 +1 866 513 2839 

**belfuse.com/power-solutions** 

© 2021 Bel Power Solutions & Protection                    BCD.20175_A   29 September 2021