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LDC240 Series is a single phase, ultra compact DIN Rail Switching  
Power Supply with active PFC, ideal for many applications.  
Its compact size, high efficiency, excellent reliability together with easy  
installation makes it ideal for various industrial applications.  
LDC240 Series is Class I isolation device suitable for SELV and PELV  
circuitry (up to 48 VDC models) and is designed to be mounted on DIN  
rail and installed inside a protective enclosure.  
High efficiency and extremely compact size  
Only 40 mm width aluminum enclosure  
Active PFC  
Overload 150%  
Constant current or hiccup mode limitation, user settable  
Wide range of output voltage  
Easy parallelable for power increase  
Industrial Control  
Communication  
Instrumentation Equipment  
2
LDC240 Series  
LDC240-12  
LDC240-12P  
LDC240-24  
LDC240-24P  
LDC240-36  
LDC240-36P  
LDC240-48  
LDC240-48P  
LDC240-72  
LDC240-72P  
120 - 240 VAC (110 - 345 VDC)  
120 - 240 VAC (110 - 345 VDC)  
120 - 240 VAC (110 - 345 VDC)  
120 - 240 VAC (110 - 345 VDC)  
120 - 240 VAC (110 - 345 VDC)  
120 - 240 VAC (110 - 345 VDC)  
120 - 240 VAC (110 - 345 VDC)  
120 - 240 VAC (110 - 345 VDC)  
120 - 240 VAC (110 - 345 VDC)  
120 - 240 VAC (110 - 345 VDC)  
12 VDC  
12 VDC  
24 VDC  
24 VDC  
36 VDC  
36 VDC  
48 VDC  
48 VDC  
72 VDC  
72 VDC  
15 A  
15 A  
10 A  
10 A  
7.5 A  
7.5 A  
5 A  
Includes internal ORing diode  
Includes internal ORing diode  
Includes internal ORing diode  
Includes internal ORing diode  
Includes internal ORing diode  
5 A  
3.3 A  
3.3 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.  
Rated, UL certified  
Operating  
120 – 240 VAC  
90 - 264 VAC  
Input AC Voltage Range  
Input DC Voltage Range  
Input Frequency Range  
Rated  
110 - 345 VDC  
47 - 63 Hz  
Vin = 120 VAC 2.4 A  
Vin = 240 VAC 1.2 A  
Input AC Current  
LDC240-12  
LDC240-24 / LDC240-36 /LDC240-48 /  
LDC240-72  
2.5 A  
Vin = 110 VDC  
2.6 A  
Input DC Current  
LDC240-12  
1.2 A  
Vin = 345 VDC  
0.9 A  
LDC240-24 / LDC240-36 / LDC240-48 /  
LDC240-72  
Power Factor Correction  
Inrush Peak Current  
Active  
> 0.9  
≤ 45 A  
Touch (Leakage) Current  
Internal Protection Fuse  
≤ 0.6 mA  
Not user replaceable  
6.3 AT  
It is strongly recommended to provide external surge  
arresters (SPD) according to local regulations.  
Fuse 10 AT or MCB 10 A C curve  
Recommended External Protection  
Output Power  
240 W  
LDC240-12  
LDC240-24  
LDC240-36  
LDC240-48  
LDC240-72  
12 VDC (12 - 15 VDC)  
24 VDC (22 - 29 VDC)  
36 VDC (34 - 39 VDC)  
48 VDC (45 - 55 VDC)  
72 VDC (70 - 85 VDC)  
Rated Voltage  
(Adjustable Output Voltage Range)  
tech.support@psbel.com  
3
LDC240 Series  
LDC240-12  
LDC240-24  
LDC240-36  
LDC240-48  
LDC240-72  
LDC240-12  
LDC240-24  
15 A  
10 A  
7.5 A  
5 A  
3.3 A  
17 A  
11 A  
Continuous Current  
Overload Limit (Constant Current Mode) LDC240-36  
8.5 A  
LDC240-48  
LDC240-72  
7 A  
4 A  
LDC240-12  
20 A  
LDC240-24  
Overload Limit (Hiccup mode) (max. 5 s) LDC240-36  
LDC240-48  
15 A  
10 A  
8.5 A  
5.5 A  
LDC240-72  
LDC240-12  
≤ 2%  
≤ 1%  
Load Regulation  
LDC240-24 / LDC240-36 / LDC240-48 / LDC240-72  
LDC240-12  
LDC240-24 / LDC240-36  
LDC240-48  
LDC240-72  
LDC240-12  
LDC240-24 / LDC240-36 / LDC240-48  
LDC240-72  
≤ 160 mVpp  
≤ 260 mVpp  
≤ 400 mVpp  
≤ 550 mVpp  
≥ 25 ms  
≥ 20 ms  
≥ 15 ms  
Ripple & Noise1  
Hold up Time  
Protections  
Overload, short circuit, with constant current  
Thermal protection  
Input undervoltage lockout  
Output overvoltage  
≥ 18 VDC  
≥ 33 VDC  
≥ 45 VDC  
≥ 68 VDC  
≥ 100 VDC  
LDC240-12  
LDC240-24  
LDC240-36  
LDC240-48  
Output Over Voltage Protection  
LDC240-72  
DC OK - green LED  
Status Signals  
Parallel Connection2  
Efficiency  
OVERLOAD - red LED  
DC OK - dry contact (NO, 24 VDC / 1 A)  
Possible for power or redundancy (with external ORing module)  
P (models) - include internal ORing circuit  
LDC240-12  
LDC240-24 / LDC240-36  
LDC240-48 / LDC240-72  
LDC240-12  
> 90%  
> 93%  
> 93.5%  
< 25 W  
< 19 W  
< 17 W  
Dissipated Power  
LDC240-24 / LDC240-36  
LDC240-48 / LDC240-72  
1
Ripple and Noise are measured with 20MHz bandwidth, probe terminated with a 0.1μF MKP parallel capacitor.  
Pay attention, set the current limitation mode jumper on C.C. mode when connecting more units in parallel.  
2
NOTE: Power rating, losses, efficiency, ripple, thermal behaviour and start-up may change outside of the nominal rated input range.  
Contact factory for details.  
UL certificated up to 70°C  
Operating Temperature  
- 40° to + 70°C  
- 40° to + 80°C  
(Start-up type tested: - 40°C)3  
Storage Temperature  
Derating  
No derating  
Humidity  
Non condensing  
At 25°C ambient, full load  
5 - 95% RH  
Life Time Expectancy  
221288 h (25.2 years)  
Overvoltage Category  
Pollution Degree  
III (EN50178)  
2 (IEC60664-1)  
Protection Class  
Class I  
Input to Output  
Input to Ground  
Output to Ground  
4.2 kVDC  
2.2 kVDC  
0.75 kVDC  
Isolation Voltage  
North America  
Asia-Pacific  
Europe, Middle East  
+1 408 785 5200  
+86 755 298 85888  
+353 61 225 977  
© 2016 Bel Power Solutions & Protection  
BCD.00756_AB  
4
LDC240 Series  
UL508 (certified)  
EN60950 (reference)  
EN50178 (reference)  
EN55011 (CISPR11)  
EN55022 (CISPR22)  
EN61000-3-2  
EN61000-4-2  
EN61000-4-3  
EN61000-4-4  
EN61000-4-5  
Safety Standards & Approvals  
Class B  
Class B  
Class A  
Level 3  
Level 3  
Level 3  
Level 4  
Level 2  
Emission  
EMC Standards  
Immunity  
EN61000-4-11  
Protection Degree  
Vibration Sinusoidal  
EN60529  
IP20  
5-17.8 Hz: ±1.6 mm; 17.8-500 Hz:  
2 g 2 Hours / axis (X,Y,Z)  
IEC 60068-2-6  
30 g 6 ms, 20 g 11 ms;  
3 bumps / direction, 18 bumps total  
Shock  
IEC 60068-2-27  
3
Possible with load derating.  
Weight  
600 g  
Dimensions (W x H x D)  
Mounting Rail  
40 x 115 x 110 mm  
IEC 60715/H15/TH35-7.5(-15)  
Connection Terminals  
Case Material  
2.5 mm², screw type pluggable (24 - 12 AWG)  
Aluminum  
AC/DC input  
DC output (load)  
1
2
3
4
5
6
7
Diagnostic Output (dry contact, NC output OK)  
Green LED: Output OK  
Red LED: Overload  
Output voltage adjustment  
Selectable limitation mode (Hiccup mode, C.C. mode)  
INPUT CONNECTION  
OUTPUT CONNECTION  
Single phase:  
L = Line  
N = Neutral  
+ = Positive DC  
- = Negative DC  
= Earth ground  
DC:  
Signaling:  
L = + Positive DC  
N = - Negative DC  
= Earth ground  
DC OK: dry contact  
NO  
COM  
tech.support@psbel.com  
5
LDC240 Series  
Figure 1. 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.  
North America  
Asia-Pacific  
Europe, Middle East  
+1 408 785 5200  
+86 755 298 85888  
+353 61 225 977  
© 2016 Bel Power Solutions & Protection  
BCD.00756_AB