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Mean Well DDRH-15-12DR Ultra Wide Input DC-DC Converter, 15W 12V, Din Rail Type 1.25A

150~1500VDC 10:1 ultra-wide input rangefanless design-40~80°C ultra-wide operating temperature

SKU DDRH-15-12DR

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Overview

DDRH-15-12DR is the 12V output model of this series: rated power 5Vo: 10W 12Vo ~ 24Vo: 15W, typical efficiency 79%.

DDRH-15 series is a 150 ~ 1500Vdc high reliable ultra-high input DC-DC converter which can supply stable working voltage for the load. Main features are as following: compact size, -40~+80℃ wide range operating temperature, 4KVac high isolation voltage, operation at 5000m altitude, low ripple & noise, complete protections and so on. Futhermore, this series also has DIN Rail type, it is suitable to be mounted on TS-35/7.5 or TS-35/15 rails. DDRH-15 is designed to meet UL1741 and IEC62109-1 standard. It is suitable for industrial automation, surveillance, telecommunication and can be widely deployed in the applications of new energy generation such as solar power, and windmill power generation, for instances, photovoltaic power systems, high voltage inverting , DC bus centralized application , ESS, charging pile, railway and so forth.

Features

150~1500Vdc 10:1 ultra-wide input range
4KVac I/O high isolation(Reinforced isolation)
Protections: Short circuit / Overload / Over voltage / DC input under voltage / DC input reverse Polarity
Fanless design, fully encapsulated, cooling by free air convection
Can be installed on DIN rail TS-35/7.5 or 15 (DR-Type)
-40~+80℃ ultra-wide operating temperature (＞+50℃ derating)
Operating altitude up to 5000 meters
3 years warranty

Specifications

DDRH-15-12DRSpecifications from the official datasheet (2024-10-18 edition)

MODEL SELECTION TABLE

INPUT VOLTAGE (RANGE): Nominal 800Vdc (150~1500Vdc)
INPUT CURRENT NO LOAD: 0.2mA
INPUT CURRENT FULL LOAD: 30mA
OUTPUT VOLTAGE: 12V
OUTPUT CURRENT: 1.25A
EFFICIENCY (Typ.): 79%
CAPACITOR LOAD (MAX.): 1250μF

INPUT

VOLTAGE RANGE: 150 ~ 1500Vdc
FILTER: Internal capacitor
EXTERNAL INPUT FUSE: 4A/1500Vdc, required (Please refer to page 6 for more details)
INRUSH CURRENT (Typ.): Cold start 150A max. @ Vin=800Vdc

OUTPUT

VOLTAGE ACCURACY: ±2.0%
RATED POWER: 5Vo: 10W 12Vo ~ 24Vo: 15W
RIPPLE & NOISE^Note.2: 5 ~ 15Vo: 100mVp-p 24Vo: 150mVp-p
LINE REGULATION: ±1%
LOAD REGULATION: ±1% (10% Load to Full Load)
SWITCHING FREQUENCY (Typ.): 25 ~ 75.6KHz
HOLD UP TIME: 16ms min. @Vin=800Vdc
SETUP TIME: 1s max. @150~1500Vdc

PROTECTION

SHORT CIRCUIT: Protection type : Hiccup mode, continuous, automatic recovery
OVERLOAD: 110 ~ 300% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: Hiccup mode, recovers automatically after fault condition is removed
DC INPUT REVERSE POLARITY: By internal Bridge Diode, no damage, recovers automatically after fault condition removed
DC INPUT UNDER VOLTAGE LOCKOUT Start-up voltage: 147Vdc
DC INPUT UNDER VOLTAGE LOCKOUT Shutdown voltage: 137Vdc

ENVIRONMENT

WORKING TEMP.: -40 ~ +80℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: ±0.02% / ℃ (0 ~ 50℃)
VIBRATION: Component: 10 ~ 500Hz, 3G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting clip: Compliance to IEC60068-2-6
OPERATING ALTITUDE^Note.3: 5000 meters
OVER VOLTAGE CATEGORY: Ⅱ ; According to EN62109-1; altitude up to 5000 meters

SAFETY & EMC

SAFETY STANDARDS: UL1741 , CSA C22.2 No.107.1-16 , IEC62109-1 (LVD), EAC TP TC 004 approved
WITHSTAND VOLTAGE: I/P-O/P:4KVac
ISOLATION RESISTANCE: I/P-O/P, 100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55032 Class A (with external components)
Radiated BS EN/EN55032 Class A (with external components)
EMC IMMUNITY: BS EN/EN55035

Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 3, 8KV air; Level 2, 4KV contact, criteria A
Radiated Susceptibility BS EN/EN61000-4-3 Level 3, 10V, criteria A
EFT/Bursts BS EN/EN61000-4-4 Level 2, 0.5KV, criteria A
Surge BS EN/EN61000-4-5 Level 4, 2KV/Vin+ ~ Vin-, criteria A
Conducted BS EN/EN61000-4-6 Level 3, 10V, criteria A

Parameter	Standard	Test Level
Conducted	BS EN/EN55032	Class A (with external components)
Radiated	BS EN/EN55032	Class A (with external components)

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 3, 8KV air; Level 2, 4KV contact, criteria A
Radiated Susceptibility	BS EN/EN61000-4-3	Level 3, 10V, criteria A
EFT/Bursts	BS EN/EN61000-4-4	Level 2, 0.5KV, criteria A
Surge	BS EN/EN61000-4-5	Level 4, 2KV/Vin+ ~ Vin-, criteria A
Conducted	BS EN/EN61000-4-6	Level 3, 10V, criteria A

OTHERS

MTBF: 388Khrs MIL-HDBK-217F(25℃)
DIMENSION (L*W*H): P Type: 76.2*50.8*25mm, ST Type: 122.3*57.3*32mm, DR Type: 122.3*57.3*43.5mm
CASE MATERIAL: Non-conductive black plastic (UL 94V-0 rated)
POTTING MATERIAL: UL 94V-0
PIN MATERIAL: Base: copper, Plating: Matte Tin
PACKING: P Type : 170g ; 6pcs/Tray, 18pcs/per carton ST Type : 210g ; 6pcs/Tray, 18pcs/per carton DR Type : 215g ; 6pcs/Tray, 18pcs/per carton

Test conditions and notes4

1. All parameters NOT specially mentioned are measured at 800Vdc 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. 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).
4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets 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)

Technical drawings

DDRH-15-12DR ‧Tolerance: x.x±0.7mm (x.x±0.0275") — ‧Tolerance: x.x±0.7mm (x.x±0.0275")

DDRH-15-12DR ‧Tolerance: x.x±0.7mm (x.x±0.0275") (2) — ‧Tolerance: x.x±0.7mm (x.x±0.0275") (2)

DDRH-15-12DR DDRH-15-xxST (Screw Terminal Type) — DDRH-15-xxST (Screw Terminal Type)

DDRH-15-12DR DDRH-15-xxDR (DIN Rail Type) — DDRH-15-xxDR (DIN Rail Type)

DDRH-15-12DR Installation Instruction(DDRH-15-xxDR only) — Installation Instruction(DDRH-15-xxDR only)

DDRH-15-12DR External Fuse Wiring Instruction — External Fuse Wiring Instruction

DDRH-15-12DR DDRH-15-xxST — DDRH-15-xxST

DDRH-15-12DR DDRH-15-xxDR — DDRH-15-xxDR

Typical applications

Downloads

Datasheet1

DDRH-15-12DR datasheetDDRH_15_spec_sheet.pdf · 2024-10-18 edition PDF Download

FAQ

Can the DDRH-15-12DR power 12V sensors or transmitters from a high-voltage DC bus in a process control system?

Yes. The DDRH-15-12DR delivers 12V at 1.25A (15W) from a 150–1500VDC input, making it appropriate for supplying 12V loop-powered sensors, 4-20mA transmitters, or small instruments in process control panels connected to high-voltage DC buses.

Is the DDRH-15-12DR suitable for providing isolated 12V power to intrinsically safe barriers or Zener barriers?

The DDRH-15-12DR provides 15W at 12V/1.25A from a 150–1500VDC input, mounts on a DIN rail, and has 4KVac input-to-output isolation. However, the sheet lists no intrinsic-safety or hazardous-location approval, so verify the specific IS application requirements before using it with IS barriers.

Can I use the DDRH-15-12DR in a renewable energy cabinet where the input bus is 400–800VDC?

Yes. The 10:1 ultra-wide input range of 150–1500VDC makes the DDRH-15-12DR compatible with 400–800VDC input from solar or wind energy DC buses, supplying a regulated 12V/1.25A output for instrumentation or control circuits.

What is the operating temperature range of the DDRH-15-12DR?

The DDRH-15-12DR operates from -40°C to +80°C with a fanless design, with load derating at high ambient temperatures per the derating curve. This wide temperature range makes it suitable for cold-climate deployments and high-ambient industrial enclosures; outdoor equipment needs a protective enclosure, as no IP rating is specified.

How does the DDRH-15-12DR differ from the DDRH-15-12P and DDRH-15-12ST models?

All three deliver 15W at 12V/1.25A from 150–1500VDC input. The DDRH-15-12DR is DIN rail-mount (122.3 × 57.3 × 43.5 mm, 0.215 kg), while the DDRH-15-12P is PCB-mount and the DDRH-15-12ST uses screw terminals. Select the variant that matches your panel's mounting and wiring requirements.

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Model	Power	Voltage	Current	IP Rating
Mean Well DDRH-15-24ST Ultra Wide Input DC-DC Converter, 15W 24V, Screw Terminal Type 625mA	15W	24V	0.625A	IP20	View
Mean Well DDRH-15-24DR Ultra Wide Input DC-DC Converter, 15W 24V, Din Rail Type 625mA	15W	24V	0.625A	IP20	View
Mean Well DDRH-15-15ST Ultra Wide Input DC-DC Converter, 15W 15V, Screw Terminal Type 1A	15W	15V	1A	IP20	View
Mean Well DDRH-15-15DR Ultra Wide Input DC-DC Converter, 15W 15V, Din Rail Type 1A	15W	15V	1A	IP20	View
Mean Well DDRH-15-12ST Ultra Wide Input DC-DC Converter, 15W 12V, Screw Terminal Type 1.25A	15W	12V	1.25A	IP20	View
Mean Well DDRH-15-05ST Ultra Wide Input DC-DC Converter, 10W 5V, Screw Terminal Type 2A	10W	5V	2A	IP20	View
Mean Well DDRH-15-05DR Ultra Wide Input DC-DC Converter, 10W 5V, Din Rail Type 2A	10W	5V	2A	IP20	View
Mean Well DDRH-15-24P Ultra Wide Input DC-DC Converter, 15W 24V, PCB Mounting Type 625mA	15W	24V	0.625A	IP20	View
Mean Well DDRH-15-15P Ultra Wide Input DC-DC Converter, 15W 15V, PCB Mounting Type 1A	15W	15V	1A	IP20	View
Mean Well DDRH-15-12P Ultra Wide Input DC-DC Converter, 15W 12V, PCB Mounting Type 1.25A	15W	12V	1.25A	IP20	View
Mean Well DDRH-15-05P Ultra Wide Input DC-DC Converter, 10W 5V, PCB Mounting Type 2A	10W	5V	2A	IP20	View

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