Mean Well IRM-30-12 Switching Power Supply 3W 12V 2.5A

Name: Mean Well IRM-30-12 Switching Power Supply 3W 12V 2.5A - Encapsulated
Brand: Mean Well
SKU: IRM-30-12
Price: 12.41 USD
Availability: InStock

Overview

IRM-30-12 is the 12V output model of this series: rated current 2.5A, rated power 30W, typical efficiency 88%.

IRM-30 is a 30W miniature (69.5*39*24mm) AC-DC module-type power supply, ready to be soldered onto the PCB boards of various kinds of electronic instruments or industrial automation equipments. This product allows the universal input voltage range of 85~305Vac. The 94V-0 flame retardant plastic case and potted with silicone enhance the heat dissipation. PCB mounting style model(Blank) meet the anti-vibration demand up to 2G and screw terminal style model (ST) meet the anti-vibration demand up to 5G; moreover, it provides the fundamental resistance to dust and moisture. With the high efficiency up to 90% and the extremely low no-load power consumption below 0.1W, IRM-30 series fulfills the worldwide regulation for the low power consumption requirement for electronics. The entire series is a Class Ⅱ design (no FG pin), incorporating the built-in EMI filtering components, enabling the compliance with BS EN/EN55032 Class B; the superlative EMC features keep the end electronic units from electromagnetic interference. In addition to module-type model, IRM-30 series also offers the screw terminal style model (ST).

Features

2.74"x1.54"compact size
PCB, chassis or screw terminal mounting version
Universal input 85~305Vac
No load power consumption<0.1W
EMI Class B without additional components
Wide operating temp. range -30~85℃
Protections: Short circuit / Overload / Over voltage
Cooling by free air convection
Isolation Class Ⅱ
Over voltage category Ⅲ (OVC Ⅲ)
Pass LPS(except for 5V)
3 years warranty

Specifications

IRM-30-12Specifications from the official datasheet (2026-04-03 edition)

OUTPUT

DC VOLTAGE: 12V
RATED CURRENT: 2.5A
CURRENT RANGE: 0 ~ 2.5A
RATED POWER: 30W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE TOLERANCE^Note.3: ±2.5%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 1000ms, 30ms/230Vac 1500ms, 30ms/115Vac at full load
HOLD UP TIME (Typ.): 40ms/230Vac 12ms/115Vac at full load

INPUT

VOLTAGE RANGE: 85 ~ 305Vac
FREQUENCY RANGE: 47 ~ 440Hz
EFFICIENCY (Typ.): 88%
AC CURRENT (Typ.): 0.75A/115Vac 0.5A/230Vac 0.375A/277Vac
INRUSH CURRENT (Typ.): COLD START 25A/115Vac 45A/230Vac
LEAKAGE CURRENT: < 0.25mA/277Vac

PROTECTION

OVERLOAD: 105% ~ 160% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 12.6 ~ 16.2V Protection type : Shut off o/p voltage, clamping by zener diode

ENVIRONMENT

WORKING TEMP.: -30 ~ +85℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
VIBRATION: Blank:10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes ST:10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SOLDERING TEMPERATURE: Wave soldering: 265℃,5s (max.); Manual soldering: 390℃,3s (max.)
OVER VOLTAGE CATEGORY: Ⅲ; According to EN62368-1;altitude up to 2000 meters
OPERATING ALTITUDE^Note.4: 2000 meters
SAFETY STANDARDS: IEC62368-1,IEC61558-1/-2-16, UL62368-1, TUV BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16,EAC TP TC 004, BSMI CNS15598-1 approved
OVER VOLTAGE CATEGORY: IEC/EN 61558-1/-2-16(OVC Ⅲ, altitude up to 2000m); IEC/EN/UL 62368-1(OVC Ⅲ, altitude up to 2000m)
WITHSTAND VOLTAGE: I/P-O/P:4.2KVac
ISOLATION RESISTANCE: I/P-O/P:100M Ohms / 500Vdc / 25℃/ 70% RH
EMC EMISSION^Note.5: Parameter Standard Test Level

Conducted BS EN/EN55032(CISPR32), CNS15936 Class B
Radiated BS EN/EN55032(CISPR32), CNS15936 Class B
Harmonic Current (Note 5) BS EN/EN61000-3-2 Class A
Voltage Flicker BS EN/EN61000-3-3
EMC IMMUNITY: BS EN/EN55035, BS EN/EN61000-6-2

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, criteria A
EFT/Burest BS EN/EN61000-4-4 Level 3, criteria A
Surge BS EN/EN61000-4-5 Level 4, 2KV/L-N, criteria A
Conducted BS EN/EN61000-4-6 Level 3, criteria A
Magnetic Field BS EN/EN61000-4-8 Level 4, criteria A
Voltage Dips and interruptions BS EN/EN61000-4-11 ＞95% dip 0.5 periods, 30% dip 25 periods, ＞95% interruptions 250 periods

Parameter	Standard	Test Level
Conducted	BS EN/EN55032(CISPR32), CNS15936	Class B
Radiated	BS EN/EN55032(CISPR32), CNS15936	Class B
Harmonic Current (Note 5)	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 Susceptibility	BS EN/EN61000-4-3	Level 3, criteria A
EFT/Burest	BS EN/EN61000-4-4	Level 3, criteria A
Surge	BS EN/EN61000-4-5	Level 4, 2KV/L-N, criteria A
Conducted	BS EN/EN61000-4-6	Level 3, criteria A
Magnetic Field	BS EN/EN61000-4-8	Level 4, criteria A
Voltage Dips and interruptions	BS EN/EN61000-4-11	＞95% dip 0.5 periods, 30% dip 25 periods, ＞95% interruptions 250 periods

OTHERS

MTBF: 7713.0K hrs min. Telcordia SR-332 (Bellcore) ; 593.4K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: PCB mounting style : 69.5*39*24mm (L*W*H) Screw terminal style : 91*39.5*28.5mm (L*W*H)
PACKING: PCB mounting style : 0.094Kg;144pcs/14.5Kg/0.94CUFT Screw terminal style :0.113Kg;120pcs/14.6Kg/0.83CUFT

Test conditions and notes5

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. 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 )

Technical drawings

IRM-30-12 Derating Curve — Derating Curve

IRM-30-12 Mechanical Specification — Mechanical Specification

Typical applications

Industrial electrical equipment
Mechanical equipment
Factory automation equipment
Hand-held electronic device

Downloads

Certificates4

EMC Certificate (IRM-30)(EN) PDF Download

UL Certificate (IRM-30)(EN) PDF Download

CB Certificate (IRM-30)(EN) PDF Download

TUV Certificate (IRM-30)(EN) PDF Download

Test reports1

Test Report(IRM-30-12)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the IRM-30-12 for a 12V industrial controller or PLC accessory board?

Yes, this model provides constant-voltage 12V output at up to 2.5A, with 30W total power. That makes it suitable for 12V control electronics, accessory boards, or compact PLC-related devices that stay within that output envelope. The 85-305VAC input also supports equipment used across varied mains conditions.

Is the IRM-30-12 a good fit for 12V embedded automation or monitoring hardware?

It can be a good fit for embedded 12V automation, sensing, or monitoring hardware that requires up to 2.5A. The supply is designed for constant-voltage operation, which matches many board-level industrial electronics. Its PCB-mount format is intended for integration inside finished equipment.

Can this power supply run a 12V HMI interface, panel electronics, or alarm/control board?

Yes, if the full 12V load remains within 30W and 2.5A. That output level is appropriate for many small HMI interface sections, annunciation boards, and panel control electronics that use a 12V DC rail. Its 69.5 x 39 x 24 mm PCB mounting package fits compact panel builds.

Would the IRM-30-12 work for compact instrumentation or test equipment that needs 12V DC?

It can work well in compact instruments or test fixtures that need a fixed 12V supply up to 2.5A. The compact 69.5 x 39 x 24 mm PCB-mount package saves board space. The output holds a ±2.5% voltage tolerance with 150mVp-p maximum ripple and noise, which suits many instrumentation rails.

Is the IRM-30-12 suitable for outdoor installations?

The specified operating temperature range is -30°C to +85°C (with load derating at higher ambient temperatures per the derating curve), so it can handle a wide temperature span inside protected equipment. No IP rating is listed in the provided specs, so it should not be treated as a standalone outdoor-rated supply. For exposed conditions, it should be used within an enclosure that provides the needed environmental protection.

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Mean Well IRM-30-12 Switching Power Supply 3W 12V 2.5A - Encapsulated

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