MEAN WELL DDR-240B-24 DIN Rail Type DC-DC Converter
Product Usage Instructions
Installation
- Ensure the power source matches the input voltage range of the converter.
- Mount the converter on a DIN rail TS-35/7.5 or 15 securely.
- Connect the input and output terminals following the provided wiring diagram.
Operation
- Power on the converter by applying the correct input voltage.
- Monitor the DC output voltage to ensure it falls within the specified range.
- Use the DC OK relay contact for external monitoring if needed.
Maintenance
- Regularly check for any dust accumulation on the converter and clean it if necessary.
- Inspect the connections for any signs of wear or damage.
- Refer to the user manual for troubleshooting steps in case of any issues.
Features
- Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
- Width only 40mm
- 2:1 wide input range
- wide working temperature
- 150% peak load capability
- Current sharing up to 960W(3+1)
- DC output adjustable
- Cooling by free air convection
- Can be installed on DIN rail TS-35/7.5 or 15
- Protections: Short circuit / Overload / Over voltage /
- Over temperature / Input reverse polarity/
- Input under voltage protection
- 4KVdc 1/0 isolation(Reinforced isolation)
- DC 0K relay contact
- Remote ON-OFF control
- 3 years warranty
Description
DDR-240 series is a 240W DIN Rail type DC-DC converter with main features including DIN rail-type easy installation, ultra-slim width (40mm), 2:1 wide input voltage, fanless design, wide operating temperature, 4K Vdc 1/0 isolation, 150% peak load, current sharing, DC 0K, adjustable output voltage and full protective functions. This series of models has various input options: 1 / 33.+67.2V / 67.2-154V and two output options: 24V / 48V and can be used for industrial & railway control, security control, communication sys,them, and other fields. Suitable applications incl to DC buck/boost regulator, increasing system insulation level and voltage drop compensation along cable…etc.
Model Encoding
Applications
- Bus, tram,metro, or railway system
- Industrial control system
- Semiconductorr fabrication equipment
- Factory automation
- Electro-mechanical
- Wireless network
- Telecom or datacom system
GTIN CODE
MW Search: https://www.meanwell.com/serviceGTIN.aspx
SPECIFICATION
| MODEL | DDR-240B-24 | DDR-240B-48 | DDR-240C-24 | DDR-240C-48 | DDR-240D-24 | DDR-240D-48 | ||||
|
OUTPUT |
DC VOLTAGE | 24V | 48V | 24V | 48V | 24V | 48v | |||
| RATED CURRENT | 10A | 5A | 10A | 5A | 10A | 5A | ||||
| CURRENT RANGE | 0 ~ 10A | 0 ~ 5A | 0 ~ 10A | 0 ~ 5A | 0 ~ 10A | 0 ~ 5A | ||||
| RATED POWER | 240W | 240W | 240W | 240W | 240W | 240W | ||||
|
PEAK |
CURRENT | 15A | 7.5A | 15A | 7.5A | 15A | 7.5A | |||
| POWER Note.5 | 360W (3sec.) | |||||||||
| RIPPLE & NOISE (max.) Note.2 | 80mVp-p | 100mVp-p | 80mVp-p | 100mVp-p | 80mVp-p | 100mVp-p | ||||
| VOLTAGE ADJ. RANGE | 24 ~ 28V | 48 ~ 56V | 24 ~ 28V | 48 ~ 56V | 24 ~ 28V | 48~ 56V | ||||
| VOLTAGE TOLERANCE Note.3 | ±1.0% | ±1.0% | ±1.0% | ±1.0% | ±1.0% | ±1.0% | ||||
| LINE REGULATION | ±0.5% | ±0.5% | ±0.5% | ±0.5% | ±0.5% | ±0.5% | ||||
| LOAD REGULATION | ±1.0% | ±1.0% | ±1.0% | ±1.0% | ±1.0% | ±1.0% | ||||
| SETUP, RISE TIME | 500ms, 60ms | |||||||||
| HOLD UP TIME (Typ.) | Please refer to page 6 Hold up Time( Load de-rating curve ) | |||||||||
|
INPUT |
VOLTAGE RANGE Note.4 | CONTINUOUS | 16.8 ~ 33.6Vdc | 33.6 ~ 67.2Vdc | 67.2 ~ 154Vdc | |||||
| 100ms | 14.4 ~ 16.8Vdc | 28.8 ~33.6Vdc | 66 ~ 67.2Vdc | |||||||
| EFFICIENCY (Typ.) | 90% | 90% | 91% | 92% | 92% | 92.5% | ||||
| DC CURRENT (Typ.) | 11.2A @24Vdc | 5.6A @48Vdc | 2.5A @110Vdc | |||||||
| INRUSH CURRENT (Typ.) | 30A | |||||||||
|
INTERRUPTION OF VOLTAGE SUPPLY |
EN50155:2007-B/C- type comply with S2 level (10ms)@ 70% load ; D-type comply with S2 level (10ms)@ full load | |||||||||
| EN50155:2017-Comply with S1 level | ||||||||||
|
PROTECTION |
OVERLOAD Note.5 |
Normally works within 150% rated output power for more than 3 seconds and then constant current protection 105~135% rated output power with auto-recovery | ||||||||
| OVERVOLTAGEE | 28.8 ~ 35V | 57.6 ~ 65.0V | 28.8 ~ 35V | 57.6 ~ 65V | 28.8 ~ 35V | 57.6 ~ 65V | ||||
| Protection type: Shut down o/p voltage, re-power on to recover | ||||||||||
| OVER TEMPERATURE | Shut down the o/p voltage, and re-power on to recover | |||||||||
|
UNDER VOLTAGE LOCKOUT |
24Vin (B – type): Power ON≥16.8 ,
OFF≤16.5V |
48Vin (C – type): Power ON≥33.6,
OFF≤33V |
110Vin (D – type):P ower ON≥67.2V,
OFF≤65V |
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|
FUNCTION |
DC OK REALY CONTACT RATINGS (max.) | 30Vdc/1A resistive load | ||||||||
| CURRENT SHARING | Up to 960W (3+1 units). Please refer to the Function Manual | |||||||||
| REMOTE ON-OFF CONTROL | Please refer to the Function Manual | |||||||||
|
ENVIRONMENT |
WORKING TEMP. | -40 ~ +70℃ (Refer to “Derating Curve”) | ||||||||
| WORKING HUMIDITY | 5 ~ 95% RH non-condensing | |||||||||
| STORAGE TEMP., HUMIDITY | -40 ~ +85, 5 ~ 95% RH non-condensing | |||||||||
| TEMP. COEFFICIENT | ±0.03%/℃ (0 ~ 55℃) | |||||||||
| VIBRATION | Component:10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Zand axes; Mounting: Compliance to IEC61373 | |||||||||
| OPERATING ALTITUDE Note.7 | 5000 meters | |||||||||
|
SAFETY & EMC (Note 6) |
SAFETY STANDARDS | IEC 62368-1, UL 62368-1, EAC TP TC 004, AS/NZS 62368.1 approved | ||||||||
| WITHSTAND VOLTAGE | I/P-O/P:4KVdc I/P-FG:2.5KVdc O/P-FG:0.71KVdc | |||||||||
| ISOLATION RESISTANCE | I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500Vdc / 25℃/ 70% RH | |||||||||
|
EMC EMISSION |
Parameter | Standard | Test Level / Note | |||||||
| Conducted | BS EN/EN55032 | Class B | ||||||||
| Radiated | BS EN/EN55032 | Class B | ||||||||
| Voltage Flicker | BS EN/EN61000-3-3 | —– | ||||||||
| Harmonic Current | —– | —– | ||||||||
|
EMC IMMUNITY |
BS EN/EN55035 , BS EN/EN61000-6-2(BS EN/EN50082-2) | |||||||||
| Parameter | Standard | Test Level / Note | ||||||||
| ESD | BS EN/EN61000-4-2 | Level 3, 8KV air ; Level 3, 6KV contact; criteria A | ||||||||
| Radiated | BS EN/EN61000-4-3 | Level 3, 10V/m ; criteria A | ||||||||
| EFT / Burst | BS EN/EN61000-4-4 | Level 3, 2KV ; criteria A | ||||||||
| Surge | BS EN/EN61000-4-5 | Level 3, 1KV/Line-Line ;Level 3, 2KV/Line-Line-FG ;criteria A | ||||||||
| Conducted | BS EN/EN61000-4-6 | Level 3, 10V ; criteria A | ||||||||
| Magnetic Field | BS EN/EN61000-4-8 | Level 4, 30A/m ; criteria A | ||||||||
| RAILWAY STANDARD | Compliance to BS EN/EN45545-2 for fire protection ; Meet BS EN/EN50155 / IEC60571 including IEC61373 for shock & vibration, BS EN/EN50121-3-2 for EMC | |||||||||
|
OTHERS |
MTBF | 1415.6K hrs min. Telcordia SR-332 (Bellcore); 189.9K hrs min. MIL-HDBK-217F (25℃) | ||||||||
| DIMENSION | 40*125.2*113.5mm (W*H*D) | |||||||||
| PACKING | 0.76Kg;20psc/16.2Kg/1.02CUFT | |||||||||
|
NOTE |
1. All parameters NOT specially mentioned are measured at normal input (B:24Vdc, C:48Vdc, D:110Vdc ) rated load a, nd 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12″ twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor. 3. Tolerance includes set-up tolerance, line regulation, and load regulation. 4. Derating may be needed under low input voltage. Please check the derating curve for more details. 5. 3 seconds max., please refer to peak loading curves. 6. The power supply is considered an independent unit, but the final equipment still needs toconfirmm that the whole system complies with the EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf ) 7. The ambient temperature derating of 3.5℃/1000m with fanless models and 5℃/1000m with fan models for operating altitudes higher than2000m(6500ft). ※ Product Liability Disclaimer： For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx |
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Block Diagram
Derating Curve
Output derating VS input voltage
Peak Loading
DC OK Relay Contact
| Contact Close | PSU turns on / DC OK. |
| Contact Open | PSU turns off / DC fails. |
| Contact Ratings (max.) | 30V/1A resistive load. |
Function Manual
Current sharing
- Parallel operation is available by connecting the units shown below (P+, and P- are connected mutually in parallel) :
- The voltage difference among each output should be minimized so that less than 0.2V is required.
- The total output current must not exceed the value determined by the following equation (Output current at parallel operation) =(The rated current per unit) x (Number of units) x 0.9.
- In parallel operation 4 units are the maximum, please consult the manufacturer for other applications.
- When in parallel operation, the minimum output load should be greater than 3% othe f total output load. (Min. load > 3% rated current per unit x number of unit)
Remote ON-OFF Control
- The power supply can be turned ON-OFF by using the “Remote ON-OFF” function.
| Remote ON-OFF (TB1 PIN2,4) |
Output Status |
| Open or 4 ~ 10VDC | power supply ON |
| Short or 0 ~ 0.8VDC | power supply OFF |
Input Fuse
There is one fuse connected in series to the positive input line, which is used to protect against abnormal surges. The fusee specifications of each model are shown below.
| Type | Fuse Type | Reference and Rating |
| B | Time-Lag | Conquer MST, 10A, 250V *2 |
| C | Time-Lag | Conquer MST, 6.3A, 250V *2 |
| D | Time-Lag | Conquer MST, 6.3A, 250V *1 |
Input Under-Voltage Protection
If the input voltage drops below Vimin, the internal control IC shuts down and there is no output voltage. It recovers automatically when the input voltage reaches above Vimin,p leaserefersr to the ccurvebelow.
Input Reverse Polarity Protection
There is a MOSFET connected in series to the negative input line. If the input polarity is connected reversely, the MOSFET opens and there will be no output to protect the unit.
Inrush Current
Inrush current is suppressed by a resistor during the initial start-up, and then the resistor is bypassed by a MOSFET to reduce power consumption after accomplishing the start-up.
Hold-up Time
- EN50155: 2007 version – B/C- type comply with S2 level (10ms)@ 70% load ; D-type comply with S2 level (10ms)@ full load,
Please refer to the table and curves shown below for thehold-upp time specification.
Efficiency vs Load & Vin Curve
The efficiency vs load & Vin curves of each model are shown below.
Immunity to Environmental Conditions
| Test method | Standard | Test conditions | Status |
| Cooling Test | EN 50155 section 12.2.3 (Column 2, Class TX)
EN 60068-2-1 |
Temperature: -40℃
Dwell Time: 2 hrs/cycle |
No damage |
|
Dry Heat Test |
EN 50155 section 12.2.4 (Column 2, Class TX)
EN 50155 section 12.2.4 (Column 3, Class TX & Column 4, Class TX) EN 60068-2-2 |
Temperature: 70℃ / 85℃ Duration: 6 hrs / 10min |
PASS |
|
Damp Heat Test, Cyclic |
EN 50155 section 12.2.5 EN 60068-2-30 |
Temperature: 25℃~55℃ Humidity: 90%~100% RH Duration: 48 hrs |
PASS |
|
Vibration Test |
EN 50155 section 12.2.11
EN 61373 |
Temperature: 19℃ Humidity: 65%
Duration: 10 mins |
PASS |
|
Increased Vibration Test |
EN 50155 section 12.2.11 EN 61373 |
Temperature: 19℃ Humidity: 65%
Duration: 5 hrs |
PASS |
|
Shock Test |
EN 50155 section 12.2.11 EN 61373 |
Temperature: 21± 3℃ Humidity: 65 ± 5%
Duration: 30ms*18 |
PASS |
|
Low-Temperature Storage Test |
EN 50155 section 12.2.3 (Column 2, Class TX) EN 60068-2-1 |
Temperature: -40℃ Dwell Time: 16 hrs |
PASS |
|
Salt Mist Test |
EN 50155 section 12.2.10 (Class ST4) |
Temperature: 35℃±2℃ Duration: 96 hrs |
PASS |
EN45545-2 Fire Test Conditions
| Test Items | Hazard Level | ||||
| Items | Standard |
HL1 |
HL2 |
HL3 |
|
|
Oxygen index test |
EN 45545-2:2013
EN ISO 4589-2:1996 |
PASS |
PASS |
PASS |
|
|
R22 |
Smoke density test |
EN 45545-2:2013
EN ISO 5659-2:2006 |
PASS |
PASS |
PASS |
|
Smoke toxicity test |
EN 45545-2:2013 NF X70-100:2006 |
PASS |
PASS |
PASS |
|
|
R24 |
Oxygen index test |
EN 45545-2:2013
EN ISO 4589-2:1996 |
PASS |
PASS |
PASS |
|
R25 |
Glow-wire test |
EN 45545-2:2013
EN 60695-2-11:2000 |
PASS |
PASS |
PASS |
|
R26 |
Vertical flame test |
EN 45545-2:2013
EN 60695-11:2003 |
PASS |
PASS |
PASS |
Mechanical Specification
Installation Instruction
This series fits DIN rail TS35/7.5 or TS35/15. For installation details, please refer to the Instruction manual.
Installation Manual
- Please refer to :
- http://www.meanwell.com/manual.html
Downloaded from Arrow.com.
- File Name: DDR-240-SPEC 2024-09-30
FAQs
Q: What is the peak load capability of the DDR-240 series?
A: The DDR-240 series has a peak load capability of 150%.
Q: How can I adjust the DC output voltage of the converter?
A: The DC output voltage of the DDR-240 series is adjustable within a specific range. Refer to the user manual for detailed instructions on adjusting the voltage.
Q: What protections are included in the DDR-240 series?
A: The DDR-240 series features protections against short circuits, overload, over-voltage, over-temperature, input reverse polarity, and input under voltage.
Documents / Resources
 |
MEAN WELL DDR-240B-24 DIN Rail Type DC DC Converter [pdf] Owner's Manual DDR-240B-24, DDR-240B-48, DDR-240C-24, DDR-240C-48, DDR-240D-24, DDR-240D-48, DDR-240B-24 DIN Rail Type DC DC Converter, DDR-240B-24, DIN Rail Type DC DC Converter, Type DC DC Converter, DC Converter |