Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well DDR-30L-15 DC-DC Converter - 30W - 18~75V in 15V out 2A

2:1 or 4:1 wide input rangefanless design4KVdc I/O isolationultra slim dimensions

SKU DDR-30L-15

Log in to see price Trade pricing & online ordering for account holders

Select model — 6 in this family

DDR-30L-15

DDR-15G-15 - 15V out - 9~36V in Backorder

DDR-15L-15 - 15V out - 18~75V in Backorder

DDR-30G-15 - 15V out - 9~36V in Backorder

DDR-30L-15 - 15V out - 18~75V in Backorder

DDR-60G-15 - 15V out - 9~36V in Backorder

DDR-60L-15 - 15V out - 18~75V in Backorder

Product variants

Available to order

Overview

DDR-30L-15 is the 15V output model of this series: rated current 2A, rated power 30W, typical efficiency 90%.

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-30L-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.): L-type: 18ms@48Vdc input
EXTERNAL CAPACITANCE LOAD (Max.): 1500μF

INPUT

VOLTAGE RANGE^Note.4: 18 ~ 75Vdc
EFFICIENCY (Typ.): 90%
DC CURRENT (Typ.): 0.8A /48Vdc
INRUSH CURRENT (Typ.): 15A /48Vdc

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-30L-15 Block Diagram — Block Diagram

DDR-30L-15 Derating Curve — Derating Curve

DDR-30L-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-30L-15 to power 15V analog instrumentation from a 48V DC battery bank?

Yes. The DDR-30L-15 accepts 18-75V DC input, so a 48V battery bank (typical range 40-58V) falls well within its operating window. It provides a stable 15V output at up to 2A (30W) with 4KVdc isolation, which helps protect sensitive analog measurement circuits from noise on the battery bus.

Is the DDR-30L-15 a good fit for powering legacy 15V industrial control boards in a DIN rail panel?

Yes. Many older PLC I/O modules and industrial control boards require 15V DC. The DDR-30L-15 delivers 15V at 2A on a standard DIN rail (TS35/7.5 or TS35/15) with a slim 35mm width, making it a drop-in solution for retrofitting panels that have a 48V DC distribution bus or any other bus that stays within 18-75V.

Can the DDR-30L-15 convert a 24V solar system bus to 15V for charging or powering peripheral devices?

The DDR-30L-15 requires a minimum input of 18V DC (under-voltage lockout turns it off at 17V or below). A nominal 24V solar bus can dip below 18V under heavy load or low-charge conditions, so you should verify that your bus voltage stays above 18V during operation, and note that derating may be needed at low input voltage. When the input stays in range, it will deliver a stable 15V at up to 2A with full isolation.

Can I install the DDR-30L-15 in an environment with high ambient temperatures?

The DDR-30L-15 has a working temperature range of -40°C to +85°C, so it can be used in hot industrial environments such as factory floors, engine rooms, or enclosed electrical cabinets. At the upper end of that range the available load is reduced according to the derating curve, and above 2000m altitude the ambient rating is derated further, so size the load for the hottest expected conditions.

How does the DDR-30L-15 compare to other 15V options in the DDR series?

Within the DDR-30 series there are two 15V models, both rated 30W at 15V/2A with a 13.5-16.5V adjustment range and the same DIN rail housing. The DDR-30L-15 accepts 18-75V DC input (90% typical efficiency), while the DDR-30G-15 accepts 9-36V DC input (87% typical efficiency). Choose the L model for 48V-class buses and the G model for 12V or 24V buses.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Model	Power	Voltage	Current	IP Rating
Mean Well DDR-30L-5 DC-DC Converter - 30W - 18~75V in 5V out 6A	30W	5V	6A	IP20	View
Mean Well DDR-30L-24 DC-DC Converter - 30W - 18~75V in 24V out 1.25A	30W	24V	1.25A	IP20	View
Mean Well DDR-30L-12 DC-DC Converter - 30W - 18~75V in 12V out 2.5A	30W	12V	2.5A	IP20	View

Please log in to write a review.

{ "id":8441774440747, "variants" :[{ "context":"default", "variant_id": 45707181883691, "sku":"DDR-30L-15", "inventory_qty" : 0, "customer" :false, "custom_html" :"\u003ca class=\"text-current logged-out-price logged-out\" href=\"https:\/\/wellforces.co.nz\/customer_authentication\/redirect?locale=en\u0026region_country=NZ\"\u003e\n \u003cspan \u003ePlease \u003c\/span\u003e \u003cspan class=\"login-text\"\u003eLogin\u003c\/span\u003e \u003cspan\u003e for Pricing\u003c\/span\u003e\n \u003c\/a\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }