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Mean Well DDR-30G-24 DC-DC Converter - 30W - 9~36V in 24V out 1.25A
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DDR-30G-24 is the 24V output model of this series: rated current 1.25A, rated power 30W, typical efficiency 89%.
DDR-30 series is a 30W DIN Rail type DC-DC converter with main features including DIN rail-type easy installation, ultra slim width (35mm), 4:1 ultra wide input voltage, -40~+85℃ wide operating temperature, 4KVdc I/O isolation, adjustable output voltage ( 10%) and full protective functions..etc. This series has two input options: 9~36V /18~75V and various output options: 5V / 12V / 15V / 24V and can be used for industrial control, security control, communication system and other fields. Suitable applications are DC buck/boost regulator, increasing system insulation level and voltage drop compensation along cable...etc.
Features
- Width only 35mm (2SU)
- 4:1 ultra wide input range
- -40~+85℃ wide working temperature
- No minimum load required
- DC output adjustable (±10%)
- Cooling by free air convection
- 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
Specifications
OUTPUT
- DC VOLTAGE
- 24V
- RATED CURRENT
- 1.25A
- CURRENT RANGE
- 0 ~ 1.25A
- RATED POWER
- 30W
- RIPPLE & NOISE (max.)Note.2
- 100mVp-p
- VOLTAGE ADJ. RANGE
- 21.6 ~ 28V
- VOLTAGE TOLERANCENote.3
- ±2.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±0.5%
- SETUP, RISE TIME
- 120ms, 85ms at full load
- HOLD UP TIME (Typ.)
- G-type: 7ms@24Vdc input
- EXTERNAL CAPACITANCE LOAD (Max.)
- 1000μF
INPUT
- VOLTAGE RANGENote.4
- 9 ~ 36Vdc
- EFFICIENCY (Typ.)
- 89%
- DC CURRENT (Typ.)
- 1.5A /24Vdc
- INRUSH CURRENT (Typ.)
- 15A /24Vdc
PROTECTION
- OVERLOAD
- 110 ~ 150% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 28.8 ~ 34V 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
- 24Vin (G-type):Power ON≥9V , OFF≤8.5V 48Vin (L-type):Power ON≥18V , OFF≤17V
ENVIRONMENT
- WORKING TEMP.
- -40 ~ +85℃ (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 ~ 60℃ )
- VIBRATION
- Component:10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC60068-2-6
- OPERATING ALTITUDE
- 5000 meters
SAFETY & EMC
- SAFETY STANDARDS
- UL/IEC 62368-1 ,AS/NZS 62368.1 approved; Design refer to UL508
- WITHSTAND VOLTAGE
- I/P-O/P:4KVdc
- ISOLATION RESISTANCE
- I/P-O/P>100M Ohms / 500Vdc / 25℃/ 70% RH
- EMC EMISSION
-
Parameter Standard Test Level Conducted BS EN/EN55032 Class B Radiated BS EN/EN55032 Class B Voltage Flicker BS EN/EN61000-3-3 ----- - EMC IMMUNITYNote 5
-
BS EN/EN55035 , BS EN/EN61000-6-2(BS EN/EN50082-2)
Parameter Standard Test Level 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; 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
OTHERS
- MTBF
- 2780.3K hrs min. Telcordia SR-332 (Bellcore) ; 483.8K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 35*90*54.5mm (W*H*D)
- PACKING
- 0.12Kg;96pcs/12.5Kg/1.1CUFT
Test conditions and notes6
- 1. All parameters NOT specially mentioned are measured at normal input (G:24Vdc, L:48Vdc), 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. 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 https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
- 6. 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).
Technical drawings
Typical applications
- Industrial control system
- Semiconductor fabrication equipment
- Factory automation
- Electro-mechanical
- Wireless network
- Telecom or datacom system
Downloads
FAQ
Can I use the DDR-30G-24 to step up a 12V battery source to 24V for small automation loads?
Yes. The DDR-30G-24 accepts 9-36V DC input, so a 12V battery (typically 10.5-14.4V under load/charge) is within range, though derating may be needed at low input voltage (see the output-vs-input derating curve). It outputs 24V at up to 1.25A (30W), which can power small 24V solenoid valves, DIN rail relays, or compact PLCs in field-mounted enclosures.
Is the DDR-30G-24 suitable for powering 24V building automation sensors from a 24V DC bus?
Yes, though note the 9-36V input range means a nominal 24V bus works only if the bus voltage stays between 9V and 36V under all conditions. For a stable 24V bus, the DDR-30G-24 converts it to a clean, isolated 24V output at up to 1.25A (30W), which is useful when you need galvanic isolation between the bus and sensitive sensors.
Can the DDR-30G-24 provide an isolated 24V supply for communication modules in a remote cabinet?
Yes. The 4KVdc I/O isolation separates the input and output circuits, preventing ground loops and noise from the source bus from reaching sensitive RS-485, Modbus, or Ethernet communication modules. At 30W it can power several low-power communication devices simultaneously.
Will the DDR-30G-24 survive in an unheated roadside traffic control cabinet?
Yes. With a -40°C to +85°C working temperature range, the DDR-30G-24 handles the seasonal temperature extremes found in roadside cabinets; at the hot end, load must be derated according to the derating curve. Its compact size (90.0 x 54.5 x 35.0 mm) and light weight (0.12 kg) are well suited for space-limited traffic control enclosures.
Can I use the DDR-30G-24 in a solar-powered remote monitoring station?
Yes. If the solar battery voltage stays between 9V and 36V, the DDR-30G-24 produces a regulated 24V at up to 1.25A (derating may be needed at low input voltage). This suits small remote stations powering cameras, weather sensors, or cellular modems where total load is under 30W.
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Other DDR-30G Models
3 other models| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well DDR-30G-12 DC-DC Converter - 30W - 9~36V in 12V out 2.5A | 30W | 12V | 2.5A | IP20 | View |
| Mean Well DDR-30G-5 DC-DC Converter - 30W - 9~36V in 5V out 6A | 30W | 5V | 6A | IP20 | View |
| Mean Well DDR-30G-15 DC-DC Converter - 30W - 9~36V in 15V out 2A | 30W | 15V | 2A | IP20 | View |
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