Mean Well DDR-30G-15 DC-DC Converter - 30W

Name: Mean Well DDR-30G-15 DC-DC Converter - 30W - 9~36V in 15V out 2A
Brand: Mean Well
SKU: DDR-30G-15
Price: 26.19 USD
Availability: InStock

Overview

DDR-30G-15 is the 15V output model of this series: rated current 2A, rated power 30W, typical efficiency 87%.

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

DDR-30G-15Specifications from the official datasheet (2026-03-31 edition)

OUTPUT

DC VOLTAGE: 15V
RATED CURRENT: 2A
CURRENT RANGE: 0 ~ 2A
RATED POWER: 30W
RIPPLE & NOISE (max.)^Note.2: 75mVp-p
VOLTAGE ADJ. RANGE: 13.5 ~ 16.5V
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: 7ms@24Vdc input
EXTERNAL CAPACITANCE LOAD (Max.): 1500μF

INPUT

VOLTAGE RANGE^Note.4: 9 ~ 36Vdc
EFFICIENCY (Typ.): 87%
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: 17.25 ~ 20.25V 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 IMMUNITY^{Note 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

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: 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

DDR-30G-15 Block Diagram — Block Diagram

DDR-30G-15 Derating Curve — Derating Curve

DDR-30G-15 Mechanical Specification — Mechanical Specification

Typical applications

Downloads

Certificates3

CE Certificate(DDR-30)(EN) PDF Download

UL Certificate(DDR-30)(EN) PDF Download

EMC Certificate(DDR-30)(EN) PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the DDR-30G-15 to power 15V instrumentation from a 24V DC bus?

Yes. The DDR-30G-15 accepts 9-36V DC input and outputs 15V at up to 2A (30W). A 24V bus voltage is within its input range, so it can step down to 15V for legacy instruments, analog signal conditioners, or measurement modules that require a 15V rail.

Is the DDR-30G-15 a good choice for powering 15V control circuits in a compact DIN rail panel?

Yes. At only 90.0 x 54.5 x 35.0 mm and 0.12 kg, the DDR-30G-15 fits in tight spaces. It provides 30W at 15V/2A, which is enough for small relay boards, timer modules, or interface circuits commonly found in compact machine control panels.

Can the DDR-30G-15 handle voltage swings from a vehicle or mobile 24V electrical system?

Yes, as long as the swings stay within the 9-36V DC input range; the sheet does not rate it for transients above 36V, and the under-voltage lockout switches it off at 8.5V or below. Within that range, the DDR-30G-15 delivers a stable 15V output at up to 2A for onboard electronic instruments or communication modules in trucks, forklifts, or boats.

Can the DDR-30G-15 be installed in a sealed enclosure without ventilation?

The spec sheet lists no fan or forced-air cooling requirement for the DDR-30G-15. Its working temperature range is -40°C to +85°C, but the available load is reduced at higher ambient temperatures per the derating curve, so in a sealed enclosure check that the internal temperature rise keeps the unit within that curve for your load.

Can I use the DDR-30G-15 to supply 15V power in an agricultural or greenhouse monitoring system?

Yes. If the DC source (such as a solar battery or tractor electrical system) stays between 9V and 36V, the DDR-30G-15 provides a stable 15V at up to 2A. Its -40°C to +85°C working temperature (with derating at high ambient) covers wide temperature swings, but humidity is rated 5-95% RH non-condensing, so mount it in a protective enclosure that keeps condensation and water away.

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Model	Power	Voltage	Current	IP Rating	Price
Mean Well DDR-30G-12 DC-DC Converter - 30W - 9~36V in 12V out 2.5A	30W	12V	2.5A	IP20	$28.59	View
Mean Well DDR-30G-5 DC-DC Converter - 30W - 9~36V in 5V out 6A	30W	5V	6A	IP20	$29.75	View
Mean Well DDR-30G-24 DC-DC Converter - 30W - 9~36V in 24V out 1.25A	30W	24V	1.25A	IP20	$27.11	View

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Mean Well DDR-30G-15 DC-DC Converter - 30W - 9~36V in 15V out 2A

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