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Mean Well XDR-240E-12 Economical Ultra Slim Din Rail Power Supply 240W 12V 20A

40mm widthhigh efficiencyeconomical model

SKU XDR-240E-12

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Overview

XDR-240E-12 is the 12V output model of this series: rated current 20A, rated power 240W, typical efficiency 94%.

The XDR-240E series is a 240W AC/DC economical ultra slim industrial DIN rail power. Key features of this series include a narrow 40mm casing, optimizing system installation space, and an ultra-wide input range of 85~264Vac suitable for global use. It boasts a maximum efficiency of 95.5% and a low standby power consumption<1.2W for energy savings and carbon reduction. It has built-in constant current, fanless design, a wide operating temperature range of -40 to +70℃ (up to +50℃ at full load); OVCⅢ compliance; built-in DC OK signal. With comprehensive protection functions, complete safety certifications, and a 3-years warranty, the XDR-240E series is a compact, high-performance, and highly reliable DIN rail power supply.

Features

85~ 264Vac input with PFC
Global certificates in multi-fields (ITE 62368-1,Industrial 61558-1/-2-16,61010)
40mm slim width
High efficiency up to 95.5% and no load power dissipation<1.2W
Built-in constant current limiting circuit
Protections: Short circuit / Overload / Over voltage / Over temperature
Fanless design, cooling by free air convection
Over voltage category Ⅲ (OVC Ⅲ)
-40~ +70℃ wide range operation temperature (>+50℃ derating)
Operating altitude up to 5000 meters
Built-in DC OK relay contact
Can be installed on DIN rail TS-35/7.5 or 15
3 years warranty

Specifications

XDR-240E-12Specifications from the official datasheet (2026-04-10 edition)

OUTPUT

DC VOLTAGE: 12V
RATED CURRENT: 20A
CURRENT RANGE: 0 ~ 20A
RATED POWER: 240W
RIPPLE & NOISE (max.)^Note.2: 100mVp-p
VOLTAGE ADJ. RANGE: 12 ~ 15V
VOLTAGE TOLERANCE^Note.3: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±1.0%
SETUP, RISE TIME: 1200ms, 60ms/230Vac 2500ms, 150ms/115Vac at full load
HOLD UP TIME (Typ.): 20ms/230Vac 20ms/115Vac at full load

INPUT

AC VOLTAGE RANGE: 85 ~ 264Vac
DC VOLTAGE RANGE: 120 ~ 370Vdc
NO LOAD POWER CONSUMPTION (Typ.): 1W @115Vac & 230Vac
FREQUENCY RANGE: 47 ~ 63Hz
POWDR FACTOR (Typ.): PF>0.95/230Vac PF>0.98/115Vac at full load
EFFICIENCY (Typ.): 94%
AC CURRENT (Typ.): 2.6A/115Vac 1.3A/230Vac
INRUSH CURRENT (Typ.): COLD START 15A/115Vac 30A/230Vac
LEAKAGE CURRENT: <1mA / 240Vac

PROTECTION

OVERLOAD: 105~130% rated output power Hiccup mode when output voltage <30%, recovers automatically after fault condition is removed Constant current limiting without shutdown within 30%~100% rated output voltage, recovers automatically after fault condition is removed
OVER VOLTAGE: Max. 18V Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER TEMPERATURE: Protection type : Shut down o/p voltage,recovers automatically after temperature goes down

FUNCTION

DC OK RELAY CONTACT: Relay Contact Ratings (max.):30Vdc/1A, 30Vac/0.5A resistive load

ENVIRONMENT

WORKING TEMP.: -40 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85 ℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: ±0.03% /℃ (0 ~ 50℃)
VIBRATION: Component:10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC60068-2-6

SAFETY & EMC

SAFETY STANDARDS^Note.6&7&8: CB IEC 62368-1, IEC 61558-1/2-16, IEC 61010-1/-2-201 ; TUV BS EN/EN 62368-1, BS EN /EN 61558-1/-2-16, BS EN/EN 61010-1/-2-201 ; UL UL/CUL 61010-1/-2-201 ; CCC GB4943.1 ; BSMI CNS15598-1 ; EAC TPTC004 approved ; KC/BIS KC 62368-1 and BIS IS 13252 (Part 1) certified, No stock ,contact sales by request
OVER VOLTAGE CATEGORY^Note.4: IEC/EN 61558-1/-2-16 (OVC Ⅲ, altitude up to 2000m ) ; IEC/EN/UL 61010-1/-2-201 (OVC Ⅱ, altitude up to 5000m ) ; IEC/EN 62368-1 (OVC Ⅱ, altitude up to 5000m )
SAFETY EXTRA-LOW VOLTAGE(SELV): IEC/EN 61558-2-16 (SELV ) ; IEC/EN 62368-1 (SELV / ES1 )
WITHSTAND VOLTAGE: I/P-O/P: 4KVac I/P-FG: 2KVac O/P-FG: 1.5KVac O/P-DC OK: 0.5KVac
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500Vdc/25 ℃/ 70%RH
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55032 (CISPR32) / BS EN/EN61204-3 / CNS15936 / KS C 9832 Class B
Radiated BS EN/EN55032 (CISPR32) / BS EN/EN61204-3 / CNS15936 / KS C 9832 Class B
Harmonic Current BS EN/EN61000-3-2 Class A
Voltage Flicker BS EN/EN61000-3-3
EMC IMMUNITY: BS EN/EN55035 , BS EN/EN61204-3, BS EN/EN61000-6-2(BS EN/EN50082-2), KS C 9835

Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 3, 8KV air; Level 2, 4KV 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 4, 2KV/Line-Line ;Level 4, 4KV/Line-Line-Chassis ;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 (CISPR32) / BS EN/EN61204-3 / CNS15936 / KS C 9832	Class B
Radiated	BS EN/EN55032 (CISPR32) / BS EN/EN61204-3 / CNS15936 / KS C 9832	Class B
Harmonic Current	BS EN/EN61000-3-2	Class A
Voltage Flicker	BS EN/EN61000-3-3

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 3, 8KV air; Level 2, 4KV 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 4, 2KV/Line-Line ;Level 4, 4KV/Line-Line-Chassis ;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: 1723.2K hrs min. Telcordia SR-332 (Bellcore) ; 324.4K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 40*125.2*116mm (W*H*D)
PACKING: 610g; 16pcs/12.2Kg/1.27CUFT

Test conditions and notes8

1. All parameters NOT specially mentioned are measured at 230Vac 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. Tolerance : includes set up tolerance, line regulation and load regulation.
4. 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).
5. Installation clearances : 40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently with full power. In case the adjacent device is a heat source, 15mm clearance is recommended.
6. 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. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
7. The Regulatory Compliance Mark (RCM) is applied on a voluntary basis. The equipment meets the relevant IEC or AS/NZS standards, or AS/NZS 3820 where applicable. The use of the RCM mark complies with AS/NZS 4417.1.
8. Some factory or model may not have the BIS logo, please contact your MEAN WELL sales for more information.

Technical drawings

XDR-240E-12 Block Diagram — Block Diagram

XDR-240E-12 Function Manual — Function Manual

XDR-240E-12 Mechanical Specification — Mechanical Specification

XDR-240E-12 Installation Instruction — Installation Instruction

Typical applications

Industrial control system
Semiconductor fabrication equipment
Factory automation
Electro-mechanical apparatus
Battery charger

Downloads

::specification::

FAQ

What is the Mean Well XDR-240E-12 used for?

The XDR-240E-12 is a DIN rail power supply for systems that need a 12V DC output up to 240W. It is suited to industrial control panels, automation equipment, and other equipment cabinets where a slim DIN rail power supply is preferred.

How much current can the XDR-240E-12 provide?

This model is rated for 20A at 12V DC, with a total power rating of 240W. Buyers should size the supply so the connected load stays within that 240W and 20A rating.

Is the XDR-240E-12 suitable for compact control cabinets?

Yes. The XDR-240E-12 has a 40mm slim width, making it useful where DIN rail space is limited. It also uses a fanless design with free air convection cooling.

What input voltage range does the XDR-240E-12 support?

The XDR-240E-12 supports an 85-264Vac input range. This wide AC input range helps the same model fit projects in different regions where the rest of the system requirements match its 12V, 240W output rating.

Can the XDR-240E-12 operate in harsh temperatures?

This model is specified for operation from -40°C to +70°C. The product description notes derating above +50°C, so available output capacity should be reviewed for higher-temperature environments.

What protections are included with the XDR-240E-12?

The XDR-240E-12 includes protections for short circuit, overload, over voltage, and over temperature conditions. It also has a built-in constant current limiting circuit.

What certifications or safety categories are listed for the XDR-240E-12?

The product description lists global certificates across ITE 62368-1, Industrial 61558-1/-2-16, and 61010 categories. It also lists Overvoltage Category III, or OVC III.

How efficient is the Mean Well XDR-240E-12?

The XDR-240E-12 is listed with a typical efficiency of 94%. Its no-load power consumption is specified as 1W at 115Vac and 230Vac.

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Model	Power	Voltage	Current	IP Rating
Mean Well XDR-240E-24 Economical Ultra Slim Din Rail Power Supply 240W 24V 10A	240W	24V	10A	IP20	View
Mean Well XDR-240E-48 Economical Ultra Slim Din Rail Power Supply 240W 48V 5A	240W	48V	5A	IP20	View

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