Mean Well DDR-120A-48 DIN Rail Type DC-DC Converter Specification And Data Sheet

Can be installed on DIN rail TS-35/7.5 or 15
Protections: Short circuit / Overload / Over voltage / Input reverse polarity / Input under voltage protection

4KVdc I/O isolation (Reinforced isolation)
3 years warranty

Applications

Bus, tram, metro or railway system
Industrial control system

Semi-conductor fabrication equipment
Factory automation

Electro-mechanical
Wireless network

Telecom or datacom system

GTIN CODE
MW Search: https://www.meanwell.com/serviceGTIN.aspx

Description

DDR-120 series is a 120W DIN Rail type DC-DC converter with main features including DIN rail-type easy installation, ultra slim width (32mm), 2:1 wide input voltage, fanless design, -40~+70°C wide operating temperature, 4KVdc 1/O isolation, 150% peak load, adjustable output voltage and full protective functions. This series of models has various input options: 9~18V / 16.8~33.6V / 33.6~67.2V/67.2~154V and various output options: 12V / 24V / 48V and can be used for industrial & railway control, security control, communication system and other fields. Suitable applications include DC buck/boost regulator, increasing system insulation level and voltage drop compensation along cable…..etc.

Model Encoding

SPECIFICATION

MODEL		DDR-120A-12	DDR-120A-24	DDR-120A-48	DDR-120B-12		DDR-120B-24	DDR-120B-48
OUTPUT	DC VOLTAGE	12V	24V	48V	12V		24V	48V
	RATED CURRENT	8.3A	4.2A	2.1A	10A		5A	2.5A
	CURRENT RANGE	0 ~ 8.3A	0 ~ 4.2A	0 ~ 2.1A	0 ~ 10A		0 ~ 5A	0 ~ 2.5A
	RATED POWER	99.6W	100.8W	100.8W	120W		120W	120W
	PEAK CURRENT	12.45A	6.3A	3.15A	15A		7.5A	3.75A
	PEAK POWER Note.5	150W (3sec.)			180W (3sec.)
	RIPPLE & NOISE (max.) Note.2	50mVp-p	50mVp-p	50mVp-p	50mVp-p		50mVp-p	50mVp-p
	VOLTAGE ADJ. RANGE	9 ~ 14V	24 ~ 28V	48 ~ 56V	9 ~ 14V		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 @12Vdc			500ms, 60ms @24Vdc
	HOLD UP TIME (Typ.)	Please refer to page 7 Hold up Time( Load de-rating curve )
INPUT	VOLTAGE RANGE Note.4	9 ~ 18Vdc	9 ~ 18Vdc	9 ~ 18Vdc	16.8 ~ 33.6Vdc		16.8 ~ 33.6Vdc	16.8 ~ 33.6Vdc
	EFFICIENCY (Typ.)	88.5%	88.5%	88.5%	89%		89.5%	91%
	DC CURRENT (Typ.)	11.2A @12Vdc			5.6A @24Vdc
	INRUSH CURRENT (Typ.)	5A @12Vdc			5A @ 24Vdc
	INTERRUPTION OF VOLTAGE SUPPLY	EN50155:2007-comply with 3ms@ full load			EN50155:2007-comply with S1 level (6ms) @ full load, S2 level (10ms) @ 70% load
		EN50155:2017-comply with S1 level			EN50155:2017-comply with S1 level
PROTECTION	OVERLOAD	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
	OVER VOLTAGE	14.4 ~ 16.8V	28.8 ~ 33.6V	57.6 ~ 67.2V	14.4 ~ 16.8V		28.8 ~ 33.6V	57.6 ~ 67.2V
		Protection type : Shut down o/p voltage, re-power on to recover
	REVERSE POLARITY	By internal MOSFET, no damage, recovers automatically after fault condition removed
	UNDER VOLTAGE LOCKOUT	12Vin (A – type) :Power ON≥9V , OFF≤8.5V			24Vin (B – type) :Power ON≥16.8V , OFF≤16.5V
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, Z axes; Mounting: Compliance to IEC61373
	OPERATING ALTITUDE	5000 meters
SAFETY & EMC (Note 6)	SAFETY STANDARDS	IEC 62368-1, UL 62368-1, EAC TP TC 004, AS/NZS 62368.1 approved; Design refer to UL508
	WITHSTAND VOLTAGE	I/P-O/P:4KVdc I/P-FG:2.5KVdc O/P-FG:2.5KVdc
	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 (except for 9~18Vin)
OTHERS	MTBF	1769.5K hrs min. Telcordia SR-332 (Bellcore) ; 214.5K hrs min. MIL-HDBK-217F (25℃)
	DIMENSION	32125.2102mm (WHD)
	PACKING	510g; 28pcs/15.3Kg/1.22CUFT
NOTE	1. All parameters NOT specially mentioned are measured at normal input (A:12Vdc , B:24Vdc) , rated load and 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 as an independent unit, but the final equipment still need to re-confirm 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 http://www.meanwell.com) 7. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft). ※ Product Liability Disclaimer：For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

MODEL		DDR-120C-12	DDR-120C-24	DDR-120C-48	DDR-120D-12		DDR-120D-24	DDR-120D-48
OUTPUT	DC VOLTAGE	12V	24V	48V	12V		24V	48V
	RATED CURRENT	10A	5A	2.5A	10A		5A	2.5A
	CURRENT RANGE	0 ~ 10A	0 ~ 5A	0 ~ 2.5A	0 ~ 10A		0 ~ 5A	0 ~ 2.5A
	RATED POWER	120W	120W	120W	120W		120W	120W
	PEAK CURRENT	15A	7.5A	3.75A	15A		7.5A	3.75A
	PEAK POWER Note.5	180W (3sec.)
	RIPPLE & NOISE (max.) Note.2	50mVp-p	50mVp-p	50mVp-p	50mVp-p		50mVp-p	50mVp-p
	VOLTAGE ADJ. RANGE	9 ~ 14V	24 ~ 28V	48 ~ 56V	9 ~ 14V		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 @48Vdc			500ms, 60ms @110Vdc
	HOLD UP TIME (Typ.)	Please refer to page 7 Hold up Time( Load de-rating curve )
INPUT	VOLTAGE RANGE Note.4	33.6 ~ 67.2Vdc	33.6 ~ 67.2Vdc	33.6 ~ 67.2Vdc	67.2 ~ 154Vdc		67.2 ~ 154Vdc	67.2 ~ 154Vdc
	EFFICIENCY (Typ.)	89.5%	91%	92%	89.5%		91%	91.5%
	DC CURRENT (Typ.)	2.8A @48Vdc			1.3A @110Vdc
	INRUSH CURRENT (Typ.)	5A @48Vdc			5A @110Vdc
	INTERRUPTION OF VOLTAGE SUPPLY	EN50155:2007-comply with S1 level (6ms) @ full load, S2 level (10ms) @ 60% load			EN50155:2007-comply with S2 level (10ms) @ full load
		EN50155:2017-comply with S1 level			EN50155:2017-comply with S1 level
PROTECTION	OVERLOAD	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
	OVER VOLTAGE	14.4 ~ 16.8V	28.8 ~ 33.6V	57.6 ~ 67.2V	14.4 ~ 16.8V		28.8 ~ 33.6V	57.6 ~ 67.2V
		Protection type : Shut down o/p voltage, re-power on to recover
	REVERSE POLARITY	By internal MOSFET, no damage, recovers automatically after fault condition removed
	UNDER VOLTAGE LOCKOUT	48Vin (C – type) :Power ON≥33.6V , OFF≤33V			110Vin (D – type):Power ON≥67.2V , OFF≤65V
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, Z axes; Mounting: Compliance to IEC61373
	OPERATING ALTITUDE	5000 meters
SAFETY & EMC (Note 6)	SAFETY STANDARDS	IEC 62368-1, UL 62368-1, EAC TP TC 004, AS/NZS 62368.1 approved; Design refer to UL508
	WITHSTAND VOLTAGE	I/P-O/P:4KVdc I/P-FG:2.5KVdc O/P-FG:2.5KVdc
	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	1769.5K hrs min. Telcordia SR-332 (Bellcore) ; 214.5K hrs min. MIL-HDBK-217F (25℃)
	DIMENSION	32125.2102mm (WHD)
	PACKING	510g; 28pcs/15.3Kg/1.22CUFT
NOTE	1. All parameters NOT specially mentioned are measured at normal input (C:48Vdc , D:110Vdc) , rated load and 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 as an independent unit, but the final equipment still need to re-confirm 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 http://www.meanwell.com) 7. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft). ※ Product Liability Disclaimer：For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

Block Diagram

Derating Curve

Output derating VS input voltage

Peak Loading

Input Fuse

There is a fuse connected in series to the positive input line, which is used to protect against abnormal surge. Fuse specifications of each model are shown as below.

I Input Under-Voltage Protection

If input voltage drops below Vimin, the internal control IC shuts down and there is no output voltage. It recovers automatically when input voltage reaches above Vimin, please refer to the cruve below.

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.

Input Range and Transient Ability

The series has a wide range input capability. With -30% / +40% of rated input voltage(except A Type), it can withstand that for 1 second.

Inrush Current

Inrush current is suppressed by a current limit circuit during the initial start-up, and then the circuit is bypassed by a MOSFET to reduce power consumption after accomplishing the start-up.

Hold-up Time
EN50155:2007 version -D type is in compliance with S2 level (10ms), while A types are in compliance with S1 level (3ms) at full load output condition. To fulfil the requirements of S2 level (10ms), B types require de-rating their output load to 70%, C types require de-rating their output load to 60%, please refer to the curve diagrams below.

Efficiency vs Load & Vin Curve

The efficiency vs load & Vin curves of each model are shown as 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 Manual

Please refer to : http://www.meanwell.com/manual.html

FAQ’s

What is the brand and model of the DC-DC converter that Mean Well offers?

Brand: Mean Well ,Model: DDR-120A-48

What is the input voltage range of the Mean Well DDR-120A-48 converter?

The input voltage range of the DDR-120A-48 is 9.2VDC to 18VDC.

What is the output voltage of the Mean Well DDR-120A-48 converter?

The output voltage of the DDR-120A-48 is 48VDC.

Can the DDR-120A-48 converter handle a wide temperature range?

Yes, the Mean Well DDR-120A-48 can operate within a temperature range of -30°C to +70°C.

What type of converter is the DDR-120A-48?

The DDR-120A-48 is a DIN rail type DC-DC converter.

What is the power rating of the Mean Well DDR-120A-48?

The DDR-120A-48 has a power rating of 120 watts.

Is the Mean Well DDR-120A-48 suitable for industrial applications?

Yes, the DDR-120A-48 is designed for industrial applications that require reliable DC-DC conversion.

What are the protection features of the DDR-120A-48 converter?

The DDR-120A-48 offers protection against overvoltage, overcurrent, and short circuits.

Does the Mean Well DDR-120A-48 comply with any safety standards?

Yes, the DDR-120A-48 is compliant with UL 508 and UL 60950-1 safety standards.

Can the DDR-120A-48 converter be mounted on a DIN rail?

Yes, the DDR-120A-48 is specifically designed for DIN rail mounting.

What is the efficiency of the Mean Well DDR-120A-48 converter?

The DDR-120A-48 has a high efficiency rating of up to 92%.

What applications is the Mean Well DDR-120A-48 commonly used for?

The DDR-120A-48 converter is commonly used in industrial automation, telecommunications, and various DC-powered systems.

Download This PDF Link: Mean Well DDR-120A-48 DIN Rail Type DC-DC Converter Specification And Data Sheet

h4>References

User Manual

Mean Well DDR-120A-48 DIN Rail Type DC-DC Converter

Features