LDN40 Series are single phase DIN Rail Switching Power Supplies,
ideal mainly for general purposes such as home automation, simple
automation in machines, survey systems, telecom, but also the
renewable energy field.
Its compact size, high efficiency, excellent reliability and excellent
power/volume ratio, together with easy installation makes it ideal for
various industrial and renewable applications.
LDN40 Series are Class II isolation devices suitable for SELV and PELV
circuitry and are designed to be mounted on DIN rail and installed
inside a protective enclosure.
Single phase AC input 90 - 264 VAC (110 - 345 VDC)
High efficiency and compact size
Plastic enclosure
Class II, simplified wiring (no PE connection)
Plastic enclosure, circuit breaker shape
Overload 150%
Includes (5 – 15 V) and (2x 12 – 16 V) models
High operating temperature with no derating
RoHS Compliant
Automation
Telecom
Survey Systems
Renewable
2
LDN40 Series
LDN40-5
LDN40-12D
LDN40-12
LDN40-24
120 - 240 VAC (110 - 345 VDC)
120 - 240 VAC (110 - 345 VDC)
120 - 240 VAC (110 - 345 VDC)
120 - 240 VAC (110 - 345 VDC)
1
1
1
1
5 - 15 VDC
2x 12 - 16 VDC
12 - 15 VDC
24 VDC
4-2A
1.0 A
3.5 - 3 A
2A
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
Rated
120 - 240 VAC
90 - 264 VAC
110 - 345 VDC
47 - 63 Hz
LDN40-5 / LDN40-12D
Input AC Current
LDN40-12 / LDN40-24
LDN40-5 / LDN40-12D
Input DC Current
LDN40-12 / LDN40-24
Inrush Peak Current
Touch (Leakage) Current
Internal Protection Fuse
Recommended External Protection
Not user replaceable
It is strongly recommended to provide external surge
arresters (SPD) according to local regulations
Vin = 120 VAC
Vin = 240 VAC
Vin = 120 VAC
Vin = 240 VAC
Vin = 110 VDC
Vin = 345 VDC
Vin = 110 VDC
Vin = 345 VDC
0.7 A
0.4 A
0.9 A
0.5 A
0.5 A
0.2 A
0.6 A
0.3 A
≤
75 A
≤
0.25 mA
Fuse 2AT
MCB 6A C curve
Input AC Voltage Range
Input DC Voltage Range
Input Frequency Range
Output Power
Rated Voltage
(Adjustable Voltage Range)
LDN40-5
LDN40-12D
LDN40-12
LDN40-24
LDN40-5
LDN40-12D
LDN40-12
LDN40-24
LDN40-5
LDN40-12D
LDN40-12
LDN40-24
LDN40-5
LDN40-12D
LDN40-12
LDN40-24
Continuous Current
Overload Limit
Short Circuit Peak Current
Load Regulation
Ripple & Noise
1
Hold up Time
40 W
5 - 15 VDC
(5 - 15 VDC)
2x 12 - 16 VDC (2x 12 – 16 VDC)
12 - 15 VDC
(12 – 15 VDC)
24 VDC
(24 VDC Fixed)
4 A @ 5 VDC / 2 A @ 15 VDC
1A
3.5 A @ 12 VDC / 3 A @ 15 VDC
2A
6.5 A @ 5 VDC / 4 A @ 15 VDC
2.7 - 2.4 A
6.5 A @ 12 VDC / 4.1 A @ 15 VDC
3.5 A
10 A
3.5 A
8.5 A
7A
≤
1%
Vin = 120 VAC
Vin = 240 VAC
≤
100 mVpp
≥
10 ms
≥
50 ms
tech.support@psbel.com
LDN40 Series
Protections
Status Signals
Parallel Connection
Efficiency
Overload/short circuit: Hiccup mode
Thermal protection
Output overvoltage
Green LED = DC OK
Possible for redundancy (with external ORing module)
LDN40-5
LDN40-12D
LDN40-12
LDN40-24
LDN40-5
LDN40-12D
LDN40-12
LDN40-24
> 80%
> 83%
> 86%
> 85%
<8W
<7W
<8W
<9W
3
Dissipated Power
1
Ripple and Noise are measured with 20MHz bandwidth, probe terminated with a 0.1μF 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.
Operating Temperature
Storage Temperature
Derating
Humidity
Life Time Expectancy
Overvoltage Category
Pollution Degree
Protection Class
Isolation Voltage
Standards & Approvals
EMC Emission
UL certified up to 50°C (Start-up type tested: - 40°C)
2
LDN40-5 / LDN40-12D
LDN40-12 / LDN40-24
Non-condensing
At 25°C ambient, full load
- 40 to + 70°C
- 40 to + 80°C
- 0.25 W / °C over 50°C
- 0.35 W / °C over 50°C
5 - 95% RH
62251 h (7.1 years)
III (EN50178)
2 (IEC60664-1)
Class II
4.2 kVDC
EMC Immunity
Protection Degree
Vibration sinusoidal
Shock
2
Input to Output
UL508 (certified)
EN60950 (reference)
EN50178 (reference)
EN55011 (CISPR11)
EN55022 (CISPR22)
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-11
EN60529
IEC 60068-2-6
IEC 60068-2-27
Class A
Class A
Level 3
Level 3
Level 3
Level 3
Level 2
IP20
5 - 17.8 Hz: ±1.6 mm;
17.8 - 500 Hz: 2 g 2Hours / axis (X,Y,Z)
30 g 6 ms, 20 g 11 ms; 3 bumps / direction,
18 bumps total
Possible with load derating.
Weight
Dimensions (W x H x D)
Rail Mounting
Connection Terminals
Case Material
Screw type header (24 - 12 AWG)
ABS, Flame retardant UL94 V-0
190 g
72 x 90 x 61.5 mm
IEC 60715/H15/TH35-7.5(-15)
2.5 mm²
Asia-Pacific
+86 755 298 85888
Europe, Middle East
+353 61 225 977
North America
+1 408 785 5200
BCD.00747_AC
© 2016 Bel Power Solutions & Protection
4
LDN40 Series
Figure 1. Mechanical Drawing
1
2
3
4
AC/DC input
DC output (load)
Green LED: Output OK
Output voltage adjustment
(all models except LDN40-24)
OUTPUT CONNECTION
+ = Positive DC (9)
- = Negative DC (8)
Exception LDN40-12D:
+ = Positive DC (9)
- = Negative DC (7)
┴
= Common DC (8)
INPUT CONNECTION
Single phase:
L = Line (2)
N = Neutral (1)
DC:
L = +/- (2)
N = -/+ (1)
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.
tech.support@psbel.com
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Authorized Distributor
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