# AC/DC DIN Rail Power Supply (PSU), ITE, Industrial & Household, 1 Output, 240 W, 48 VDC, 5 A
**URL**: https://novapart.co/products/LEC240-48/ac-dc-din-rail-power-supply-psu-ite-industrial
**SKU**: LEC240-48
**Manufacturer**: BEL POWER SOLUTIONS
**Price**: €88.0800
**Stock**: 10+
## Specifications
| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
| Product Range | LEC240 Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 240W |
| Current, Output 4 | - |
| Input Voltage Vac | 85V AC to 264V AC |
| Power Supply Output Type | Fixed |
| Output Current - Output 1 | 5A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Voltage - Output 1 | 48VDC |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE, Industrial & Household |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3928501/)
## LEC240 Series
## 240 W AC-DC DIN Rail Switching Power Supply
LEC240 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 -40°C to +70°C
- Efficiency up to 94%
- High reliability
- DC OK function
- Active PFC
- 150% peak load output for 3 seconds
- LED indicator for power on
- Output short circuit, over-current, over-voltage & over-temperature protection
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RoHS
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- Meets the requirements of IEC/EN/UL 62368-1, UL 61010, UL 508
- Dimensions 41 x 124 x 110 mm (1.61 x 4.88 x 4.33 in)
## **APPLICATIONS**
- Industrial control equipment
- Machinery
- Harsh environment applications
**belfuse.com/power-solutions**
LEC240 Series
2
## **1. MODEL SELECTION**
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MAX.
INPUT VOLTAGE OUTPUT MAX OUTPUT MAX OUTPUT
MODEL EFFICIENCY [ 1] CAPACITIVE
RANGE VOLTAGE CURRENT POWER [2]
LOAD
85 - 264 VAC
LEC240-12 12 V 16 A 92 % 160 000 µF 192 W
(120 - 370 VDC)
85 - 264 VAC
LEC240-24 24 V 10 A 94 % 40 000 µF 240 W
(120 - 370 VDC)
85 - 264 VAC
LEC240-48 48 V 5 A 94 % 10 000 µF 240 W
(120 - 370 VDC)
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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
AC Input 85 264 VAC
Input voltage
DC Input 120 370 VDC
Input frequency 47 63 Hz
115 VAC 3
Input current A
230 VAC 1.5
115 VAC 15
Inrush current [3] A
230 VAC 30
115 VAC 0.98
Power factor
230 VAC 0.94
Leakage current 240 VAC 0.5 mA
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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
LEC240-12 12 14
Adjustable output voltage [3] LEC240-24 24 28 VDC
LEC240-48 48 53
LEC240-12 16
Output current LEC240-24 10 A
LEC240-48 5
LEC240-12 ± 2
Output voltage accuracy [ 4] %
LEC240-24 / LEC240-48 ± 1
Line regulation Rated load ± 0.5 %
Load regulation 0% - 100% load ± 1 %
LEC240-12 50 100
Ripple & noise [ 5] LEC240-24 60 120 mVpp
LEC240-48 75 150
Stand-by
4 W
power consumption
Hold-up time 20 ms
Switching frequency 100 kHz
DC-OK signal [ 6] 30 VDC / 1 A max.
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3 The output voltage can be adjusted by the output adjustable resistance ADJ, turn clockwise.
4 At full load range
5 Measured with 20 MHz bandwidth, output parallel 47 µF electrolytic capacitor and 0.1 µF ceramic capacitor.
- 6 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**
LEC240 Series
3
## **4. PROTECTIONS**
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PARAMETER DESCRIPTION / CONDITIONS MIN TYP MAX UNIT
Constant current up to 1s, after 1s Hiccup mode applied.
Short circuit protection
Auto recovery. Recovery time < 10s after the SC disappear.
Normal / high temperature: auto recovery 110 200
Over current protection [7] % Io
Low temperature: auto recovery 105
LEC240-12 18
Over voltage protection Vout latch off (restart required) LEC240-24 35 V
LEC240-48 60
Over temperature protection [8] OTP start 80 90 °C
OTP release (auto recovery) 60
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7 Constant current up to 1s, after 1s Hiccup mode applied.
8 230 VAC, rated load
## **5. ENVIRONMENTAL SPECIFICATIONS**
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PARAMETER DESCRIPTION / CONDITIONS MIN TYP MAX UNIT
Operating temperature -40 +70 °C
Storage temperature -40 +85 °C
-40°C to -25°C 3.34
+45°C to +70°C (115 VAC) 2.0
Temperature derating %/°C
LEC240-12 +50°C to +70°C (230 VAC) 1.25
LEC240-24 / LEC240-48 +60°C to +70°C (230 VAC) 2.5
Input voltage derating AC Input voltage between 85 - 100 VAC /120 - 140 VDC 0.67 %/VAC
Operating, non-condescending 90
Humidity %RH
Storage, non-condescending 95
Operating 2000 m
Altitude
Derating of 5°C / 1000 m for operating altitude > 2000 m
MTBF MIL-HDBK-217F @ 25 °C 300 000 hrs
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## **6. EMC SPECIFICATIONS**
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PARAMETER DESCRIPTION / CONDITIONS CLASS / LEVEL / CRITERION
Conducted emissions EN 55032 / CISPR 32 Class B
Radiated emissions EN 55032 / CISPR 32 Class B
Harmonic current IEC/EN 61000-3-2 Class A & Class D
ESD immunity IEC/EN 61000-4-2, Contact ±6 kV / Air ±8 kV Performance Criterion A
Radiated field immunity IEC/EN 61000-4-3, 10 V/m Performance Criterion A
Electrical fast transient IEC/EN 61000-4-4, ± 2 kV Performance Criterion A
Surge immunity IEC/EN 61000-4-5, Line to line ±2 kV / Line to ground ±4 kV Performance Criterion A
Conducted immunity IEC/EN 61000-4-6, 10 VRMS Performance Criterion A
Voltage dips, interruptions IEC/EN 61000-4-11, 0%, 70% Performance Criterion B
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## **7. SAFETY SPECIFICATIONS**
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PARAMETER DESCRIPTION / CONDITIONS MIN TYP MAX UNIT
Safety standards & approvals Meets the requirements of EN 62368-1, UL 61010-1, UL 508
Safety class Class I
Input to Ground 2000
Isolation test [ 9] Input to Output 3000 VAC
Output to Ground 500
Insulation resistance At 500 VDC 50 MΩ
9 Electric strength test for 1 min., leakage current <15 mA
Asia-Pacific EMEA North America
+86 755 298 85888 +353 61 49 8941 +1 866 513 2839
belfuse.com/power-solutions
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© 2021 Bel Power Solutions & Protection BCD.20174_A 27 September 2021
LEC240 Series
4
## **8. MECHANICAL SPECIFICATIONS**
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PARAMETER DESCRIPTION / CONDITIONS MIN TYP MAX UNIT
1.61 x 4.88 x 4.33 in
Dimensions
41 x 124 x 110 mm
Weight 650 g
Case [ 10] Material: Metal (AL1100, SPCC) and Plastic (PC940)
Cooling Convection (Natural air flow)
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10 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
24 V, 48 V (230 VAC) 90
75 12 V (230 VAC)
Input Voltage: 12 V, 24 V, 48 V (115 VAC) Ambient Temperature:25°C
50 85 - 264 VAC
120 - 370 VDC
85 100 264 VAC
-40 -25 45 50 60 70 120 140 370 VDC
Ambient Temperature [°C] Input Voltage
Figure 1. Temperature Derating Curve Figure 2. Input Voltage Derating Curve
100
LEC240-48 100
95 LEC240-24
LEC240-12 95 LEC240-48LEC240-24
90 90 LEC240-12
85 85
80 80
75 75
70 70
65 65
60
60
10 25 40 50 65 75 90 100
85 115 120 230 240 264
Output Current [%]
Input Voltage [VAC]
Output Power [%]
Output Power [%]
Efficiency [%] Efficiency [%]
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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**
LEC240 Series
5
## **10. MECHANICAL DRAWINGS**
All dimensions are in mm [in] General tolerance ±1.00 mm [±0.039 in] Wire range 26-10 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
General tolerance ±1.00 mm [±0.039 in]
Wire range 26-10 AWG
Tightening torque max. 0.4 Nm
Mounting DIN Rail TS35
(rail needs to be connected to safety ground)
110.00 [4.331] 6.35 [0.250]
4 3 2 1
LED
ADJ
DC OK
Side View Front View
PIN FUNCTION
1 -Vo
OUTPUT 2 -Vo
TERMINAL 3 +Vo
5 6 7
4 +Vo
5 AC (N)
INPUT
118.90 [4.681] 6.35 [0.250] TERMINAL 6 AC (L)
7
GROUNDING
SCREW *
DC ON LED Output status indicator
(green)
ADJ Output adjustable resistor
DC OK SIGNAL Monitors the output voltage
on the output terminals
* Pin 7 and the grounding screw are interconnected.
Bottom View Either Pin 7 or the grounding screw need to be
Grounding connected to earth.
screw
41.00 [1.614]
128.80 [5.071] 124.00 [4.882]
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Figure 5. Mechanical Drawing
**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.20174_A 27 September 2021
## Links
- [View this product on Novapart](https://novapart.co/products/LEC240-48/ac-dc-din-rail-power-supply-psu-ite-industrial)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/bel-power-solutions/lec240-48/power-supply-ac-dc-48v-5a/dp/3928501)
---
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