Mean Well DDR-15G-24 DC-DC Converter - 15W

Name: Mean Well DDR-15G-24 DC-DC Converter - 15W - 9~36V in 24V out 630mA
Brand: Mean Well
SKU: DDR-15G-24
Price: 22.36 USD
Availability: InStock

Overview

DDR-15G-24 is the 24V output model of this series: rated current 0.63A, rated power 15W, typical efficiency 86%.

DDR-15 series is a 15W DIN Rail type DC-DC converter with main features including DIN rail-type easy installation, ultra slim width (17.5mm), 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: 3.3V / 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 17.5mm (1SU)
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

DDR-15G-24Specifications from the official datasheet (2026-03-31 edition)

OUTPUT

DC VOLTAGE: 24V
RATED CURRENT: 0.63A
CURRENT RANGE: 0 ~ 0.63A
RATED POWER: 15W
RIPPLE & NOISE (max.)^Note.2: 100mVp-p
VOLTAGE ADJ. RANGE: 21.6 ~ 28V
VOLTAGE TOLERANCE^Note.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: 8ms@24Vdc input
EXTERNAL CAPACITANCE LOAD (Max.): 680μF

INPUT

VOLTAGE RANGE^Note.4: 9 ~ 36Vdc
EFFICIENCY (Typ.): 86%
DC CURRENT (Typ.): 0.8A /24Vdc
INRUSH CURRENT (Typ.): 15A /24Vdc

PROTECTION

OVERLOAD: 110 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 28.8 ~ 32.4V 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: Power ON≥9V , OFF≤8.5V

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 (Note 5)

SAFETY STANDARDS: UL 62368-1, IEC 62368-1, AS/NZS 62368.1, EAC TP TC 004 approved
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 IMMUNITY: 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

Parameter	Standard	Test Level
Conducted	BS EN/EN55032	Class B
Radiated	BS EN/EN55032	Class B
Voltage Flicker	BS EN/EN61000-3-3

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: 3446.2K hrs min. Telcordia SR-332 (Bellcore) ; 907.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 17.5*90*54.5mm (W*H*D)
PACKING: 68g; 160pcs/12Kg/1.14CUFT

Test conditions and notes6

1. All parameters NOT specially mentioned are measured at 24VDC input, 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

DDR-15G-24 Block Diagram — Block Diagram

DDR-15G-24 Derating Curve — Derating Curve

DDR-15G-24 Mechanical Specification — Mechanical Specification

Typical applications

Downloads

Certificates3

UL Certificate(DDR-15)(EN) PDF Download

CE Certificate(DDR-15)(EN) PDF Download

EMC Certificate(DDR-15)(EN) PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the DDR-15G-24 to generate a 24V control signal rail from a 12V battery system?

Yes. The DDR-15G-24 accepts 9-36V DC and outputs a regulated 24V at 0.63A (15W), though derating may be needed at low input voltage. This is useful when you need a 24V rail for small PLC inputs, indicator lights, or relay coils in a system powered by a 12V battery bank. The 4KVdc I/O isolation galvanically separates the battery and the 24V circuit.

Is the DDR-15G-24 suitable for powering a small 24V industrial sensor loop from a 24V or 28V DC bus?

Yes. Even though the input and output are both near 24V, the converter accepts 9-36V input and provides a clean regulated 24V output at up to 0.63A. This is useful for isolating a sensitive 4-20mA sensor loop from a noisy DC bus, thanks to the 4KVdc I/O isolation barrier.

Can I use the DDR-15G-24 in a compact junction box for building automation?

Yes. At only 17.5 x 90 x 54.5 mm, it fits into small junction boxes commonly used in building automation for HVAC damper controls, lighting relays, or occupancy sensor loops. The 15W capacity covers a small cluster of low-power 24V devices.

Can the DDR-15G-24 handle temperature extremes in an uninsulated rooftop equipment enclosure?

The -40°C to +85°C operating temperature range accommodates winter freezing, but output must be derated at high ambient per the derating curve, so check the enclosure's internal temperature under direct summer sun against that curve. Use a sealed NEMA-rated enclosure to protect against rain and dust.

What output voltages are available in the DDR-15G series besides 24V?

The DDR-15G series offers five output voltages, all with the same 9-36V DC input range: 3.3V/3.5A (11.6W), 5V/3A (15W), 12V/1.25A (15W), 15V/1A (15W), and 24V/0.63A (15W). They share the same 17.5 x 90 x 54.5 mm package and 4KVdc I/O isolation.

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Model	Power	Voltage	Current	IP Rating	Price
Mean Well DDR-15G-3.3 DC-DC Converter - 11.6W - 9~36V in 3.3V out 3.5A	11.6W	3.3V	3.5A	IP20	$19.67	View
Mean Well DDR-15G-15 DC-DC Converter - 15W - 9~36V in 15V out 1A	15W	15V	1A	IP20	$19.67	View
Mean Well DDR-15G-5 DC-DC Converter - 15W - 9~36V in 5V out 3A	15W	5V	3A	IP20	$22.36	View
Mean Well DDR-15G-12 DC-DC Converter - 15W - 9~36V in 12V out 1.25A	15W	12V	1.25A	IP20	$22.36	View

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Mean Well DDR-15G-24 DC-DC Converter - 15W - 9~36V in 24V out 630mA

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