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Mean Well DDRH-30-24ST Ultra Wide Input DC-DC Converter, 30W 24V, Screw Terminal Type 1.25A

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

SKU DDRH-30-24ST

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Overview

DDRH-30-24ST is the 24V output model of this series: rated power 30W, typical efficiency 91%.

DDRH-30 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-30 is designed to meet UL1741and 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-30-24STSpecifications from the official datasheet (2024-10-18 edition)

INPUT

INPUT VOLTAGE (RANGE): Nominal 800Vdc (150~1500Vdc)
INPUT CURRENT NO LOAD: 0.2mA
INPUT CURRENT FULL LOAD: 50mA
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

OUTPUT VOLTAGE: 24V
OUTPUT CURRENT: 1.25A
EFFICIENCY (Typ.): 91%
CAPACITOR LOAD (MAX.): 1250μF
VOLTAGE ACCURACY: ±2.0%
RATED POWER: 30W
RIPPLE & NOISE^Note.2: 12 ~ 24Vo: 100mVp-p 48Vo: 150mVp-p
LINE REGULATION: ±1%
LOAD REGULATION: ±1% (10% Load to Full Load)
SWITCHING FREQUENCY (Typ.): 28 ~ 75.6KHz
HOLD UP TIME: 16ms min. @Vin=800Vdc
SETUP TIME: 2s 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: 144Vdc
DC INPUT UNDER VOLTAGE LOCKOUT Shutdown voltage: 132Vdc

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% / ℃ (-40℃ ~ 50℃) Typ.
VIBRATION: Meets: MIL.STD-810F Table 514.5C-VⅢ, 15-2000Hz, X,Y,Z axis, 1hr (each axis), total 3hrs
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^Note.4: 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/Burest 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/Burest	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: 318Khrs MIL-HDBK-217F(25℃)
DIMENSION (L*W*H): P Type: 89*63.5*25mm, ST Type: 135*70*32mm, DR Type: 135*70*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 : 240g ; 6pcs/Tray, 18pcs/per carton ST Type : 305g ; 6pcs/Tray, 18pcs/per carton DR Type : 310g ; 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-30-24ST ‧Tolerance: x.x±0.7mm (x.x±0.0275") — ‧Tolerance: x.x±0.7mm (x.x±0.0275")

DDRH-30-24ST ‧Tolerance: x.x±0.7mm (x.x±0.0275") (2) — ‧Tolerance: x.x±0.7mm (x.x±0.0275") (2)

DDRH-30-24ST DDRH-30-xxST (Screw Terminal Type) — DDRH-30-xxST (Screw Terminal Type)

DDRH-30-24ST DDRH-30-xxDR (DIN Rail Type) — DDRH-30-xxDR (DIN Rail Type)

DDRH-30-24ST Installation Instruction(DDRH-30-xxDR only) — Installation Instruction(DDRH-30-xxDR only)

DDRH-30-24ST External Fuse Wiring Instruction — External Fuse Wiring Instruction

DDRH-30-24ST DDRH-30-xxST — DDRH-30-xxST

DDRH-30-24ST DDRH-30-xxDR — DDRH-30-xxDR

Typical applications

Downloads

Datasheet1

DDRH-30-24ST datasheetDDRH_30_spec_sheet.pdf · 2024-10-18 edition PDF Download

FAQ

Can the DDRH-30-24ST power 24 V load cells, pressure transmitters, or other field instruments from a high-voltage DC source?

Yes. The DDRH-30-24ST delivers 24 V at up to 1.25 A (30 W), which is appropriate for powering 24 V industrial field instruments such as pressure transmitters, load cells, and flow meters. Its screw terminal connections suit direct wiring in field junction boxes or control panels with a high-voltage DC bus input between 150 and 1500 VDC.

Is the DDRH-30-24ST suitable for wind turbine or solar inverter auxiliary circuits that need 24 V control power?

The 150–1500 VDC input range covers the high-voltage DC buses common in wind turbine nacelles and solar string inverters. The DDRH-30-24ST can supply 24 V / 1.25 A to control boards, communication modules, or contactor coils in these systems, and the –40°C to +80°C range (with load derating at higher ambient temperatures per the derating curve) suits nacelle and inverter enclosures.

Will the DDRH-30-24ST work reliably in cold-storage or refrigeration plant control panels?

With a lower operating temperature limit of –40°C, the DDRH-30-24ST can function in cold-storage control panels. Its humidity rating is 20–90% RH non-condensing, so the panel must keep condensation and frost away from the unit.

Can this unit supply 24 V to motion control drives or servo amplifiers in a high-voltage DC distribution system?

The DDRH-30-24ST provides 30 W at 24 V, which is sufficient for the logic and control circuitry of small servo drives or motion controllers, but may not supply the full power stage of larger drives. It is best used for the 24 V control supply rail rather than the main drive bus.

How does the screw terminal type differ from the DIN rail and PCB-mount variants in the DDRH-30-24 family?

All three provide 30 W, 24 V / 1.25 A output from 150–1500 VDC input with –40°C to +80°C operating range. The DDRH-30-24ST (screw terminal) measures 135.0 × 70.0 × 32.0 mm and weighs 0.305 kg; the DDRH-30-24DR (DIN rail) is 135.0 × 70.0 × 43.5 mm at 0.31 kg; the DDRH-30-24P (PCB) is 89.0 × 63.5 × 25.0 mm at 0.24 kg.

What certifications and warranty does the DDRH-30-24ST carry?

The DDRH-30-24ST is approved to UL1741, CSA C22.2 No.107.1-16, IEC62109-1 (LVD) and EAC TP TC 004. The spec sheet does not state a warranty period.

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Model	Power	Voltage	Current	IP Rating
Mean Well DDRH-30-48ST Ultra Wide Input DC-DC Converter, 30W 48V, Screw Terminal Type 625mA	30W	48V	0.625A	IP20	View
Mean Well DDRH-30-48P Ultra Wide Input DC-DC Converter, 30W 48V, PCB Mounting Type 625mA	30W	48V	0.625A	IP20	View
Mean Well DDRH-30-48DR Ultra Wide Input DC-DC Converter, 30W 48V, Din Rail Type 625mA	30W	48V	0.625A	IP20	View
Mean Well DDRH-30-24P Ultra Wide Input DC-DC Converter, 30W 24V, PCB Mounting Type 1.25A	30W	24V	1.25A	IP20	View
Mean Well DDRH-30-24DR Ultra Wide Input DC-DC Converter, 30W 24V, Din Rail Type 1.25A	30W	24V	1.25A	IP20	View
Mean Well DDRH-30-15ST Ultra Wide Input DC-DC Converter, 30W 15V, Screw Terminal Type 2A	30W	15V	2A	IP20	View
Mean Well DDRH-30-15P Ultra Wide Input DC-DC Converter, 30W 15V, PCB Mounting Type 2A	30W	15V	2A	IP20	View
Mean Well DDRH-30-15DR Ultra Wide Input DC-DC Converter, 30W 15V, Din Rail Type 2A	30W	15V	2A	IP20	View
Mean Well DDRH-30-12ST Ultra Wide Input DC-DC Converter, 30W 12V, Screw Terminal Type 2.5A	30W	12V	2.5A	IP20	View
Mean Well DDRH-30-12P Ultra Wide Input DC-DC Converter, 30W 12V, PCB Mounting Type 2.5A	30W	12V	2.5A	IP20	View
Mean Well DDRH-30-12DR Ultra Wide Input DC-DC Converter, 30W 12V, Din Rail Type 2.5A	30W	12V	2.5A	IP20	View

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