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Mean Well DDRH-15-15ST Ultra Wide Input DC-DC Converter, 15W 15V, Screw Terminal Type 1A

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

SKU DDRH-15-15ST

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Overview

DDRH-15-15ST is the 15V output model of this series: rated power 5Vo: 10W 12Vo ~ 24Vo: 15W, typical efficiency 87%.

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-15-15STSpecifications 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: 15V
OUTPUT CURRENT: 1A
EFFICIENCY (Typ.): 87%
CAPACITOR LOAD (MAX.): 1000μF

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-15-15ST ‧Tolerance: x.x±0.7mm (x.x±0.0275") — ‧Tolerance: x.x±0.7mm (x.x±0.0275")

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

DDRH-15-15ST DDRH-15-xxST (Screw Terminal Type) — DDRH-15-xxST (Screw Terminal Type)

DDRH-15-15ST DDRH-15-xxDR (DIN Rail Type) — DDRH-15-xxDR (DIN Rail Type)

DDRH-15-15ST Installation Instruction(DDRH-15-xxDR only) — Installation Instruction(DDRH-15-xxDR only)

DDRH-15-15ST External Fuse Wiring Instruction — External Fuse Wiring Instruction

DDRH-15-15ST DDRH-15-xxST — DDRH-15-xxST

DDRH-15-15ST DDRH-15-xxDR — DDRH-15-xxDR

Typical applications

Downloads

Datasheet1

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

FAQ

Can the DDRH-15-15ST power 15V process instrumentation or loop-powered transmitters from a high-voltage DC rail?

The DDRH-15-15ST provides a regulated 15V output at up to 1A (15W) from a 150–1500VDC input, making it suitable for powering 15V process transmitters, signal converters, or loop-powered instruments in industrial control panels where a high-voltage DC bus is the available source.

Is the DDRH-15-15ST suitable for powering 15V control circuitry in an energy storage or EV charging system?

Yes. The DDRH-15-15ST accepts the 150–1500VDC input range typical of high-voltage battery stacks and EV charging bus architectures. It can supply 15V/1A for control logic, communication interfaces, or protection relay circuits within such systems. Its screw terminal connections simplify direct wiring to control bus conductors.

Can this unit supply power to a 15V fan controller or thermal management module in a power converter enclosure?

Yes. At 15W/1A output, the DDRH-15-15ST can power 15V brushless fan controllers, temperature monitoring modules, or small cooling assemblies in converter enclosures. Its own fanless design contributes to the thermal reliability of the overall system.

How does the DDRH-15-15ST handle operation in environments with very wide temperature swings, such as outdoor telecom cabinets?

The DDRH-15-15ST is rated for -40°C to +80°C operation (with load derating at high ambient temperatures per the derating curve) and 20–90% RH non-condensing humidity, and its fanless design has no fan to maintain, which suits cabinets that experience wide diurnal or seasonal temperature swings. No IP rating is specified, so it must be mounted inside a weatherproof enclosure.

What distinguishes the screw terminal DDRH-15-15ST from the DIN rail and PCB-mount options in the 15W 15V group?

The DDRH-15-15ST uses screw terminal connections and measures 122.3 × 57.3 × 32.0 mm at 0.21 kg. The DDRH-15-15DR (DIN rail, 122.3 × 57.3 × 43.5 mm, 0.215 kg) clips onto DIN rail, while the DDRH-15-15P (PCB mount, 76.2 × 50.8 × 25.0 mm, 0.17 kg) mounts to a circuit board. All three share 15V/1A/15W output and 150–1500VDC input; the screw terminal style is preferred when direct wire connections to panel wiring are needed without a DIN rail.

Does the DDRH-15-15ST have relevant certifications for deployment in European industrial installations?

The DDRH-15-15ST is approved to IEC62109-1 (LVD) and EAC TP TC 004, and meets BS EN/EN55032 Class A emissions (with external components) and BS EN/EN55035 immunity. As a component power supply, the final equipment must be re-confirmed to meet EMC directives.

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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-15-15DR 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-15-12DR Ultra Wide Input DC-DC Converter, 15W 12V, Din Rail 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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