Mean Well IRM-01-24 Switching Power Supply | 1W 24V 42mA - Encapsulated

Name: Mean Well IRM-01-24 Switching Power Supply 1W 24V 42mA - Encapsulated
Brand: Mean Well
SKU: IRM-01-24
Price: 6.6 USD
Availability: InStock

Overview

IRM-01-24 is the 24V output model of this series: rated current 42mA, rated power 1W, typical efficiency 77%.

IRM-01 is a 1W miniature (33.7*22.2*15mm) 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 a universal input voltage range of 85~305Vac. The phenolic case and potted with silicone enhance the heat dissipation and meet the anti-vibration demand up to 5G; moreover, it provides the fundamental resistance to dust and moisture. With the high efficiency up to 77% and the extremely low no-load power consumption below 0.075W, IRM-01 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 supreme EMC features keep the end electronic units from electromagnetic interference.

Features

Universal AC input / Full range
No load power consumption<0.075W
Compact size
Comply with BS EN/EN55032 Class B without any additional components
Wide operating temp. range -30~+85℃
Protections: Short circuit / Overload / Over voltage
Cooling by free air convection
Isolation ClassⅡ
High reliability, low cost
3 years warranty

Specifications

IRM-01-24Specifications from the official datasheet (2026-07-01 edition)

OUTPUT

DC VOLTAGE: 24V
RATED CURRENT: 42mA
CURRENT RANGE: 0 ~ 42mA
RATED POWER: 1W
RIPPLE & NOISE (max.)^Note.2: 200mVp-p
VOLTAGE TOLERANCE^Note.3: ±2.5%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 600ms, 30ms/230Vac 600ms, 30ms/115Vac at full load
HOLD UP TIME (Typ.): 40ms/230Vac 12ms/115Vac at full load

INPUT

VOLTAGE RANGE: 85 ~ 305Vac 120 ~ 430Vdc
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 77%
AC CURRENT (Typ.): 25mA/115Vac 18mA/230Vac 16mA/277Vac
INRUSH CURRENT (Typ.): 5A/115Vac 10A/230Vac
LEAKAGE CURRENT: < 0.25mA/277Vac

PROTECTION

OVERLOAD: ≥110% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 25.2 ~ 32.4V 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 ~ +100℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 75℃)
VIBRATION: 10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: IEC62368-1,IEC61558-1/-2-16,UL62368-1,TUV BS EN/EN62368-1,BS EN/EN61558-1/-2-16,EAC TP TC 004 , BSMI CNS15598-1 approved
OVER VOLTAGE CATEGORY: IEC/EN 61558-1/-2-16(OVC Ⅱ, altitude up to 2000m); IEC/EN/UL 62368-1(OVC Ⅱ, 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: Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020, CNS15936 Class B
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, heavy industry level (surge L-N : 1KV), EAC TP TC 020

OTHERS

MTBF: 13571.4K hrs min. Telcordia SR-332 (Bellcore) ; 1960.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 33.7*22.2*15mm (L*W*H)
PACKING: 0.024Kg; 640pcs/ 16.3 Kg/ 0.84CUFT

Test conditions and notes4

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 0.1uf & 47uf 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).

Technical drawings

IRM-01-24 Derating Curve — Derating Curve

Typical applications

Industrial electrical equipment
Mechanical equipment
Factory automation equipment
Handheld electronic device

Downloads

Datasheet1

IRM-01-24 datasheetIRM-01-SPEC.PDF · 2026-07-01 edition PDF Download

Certificates4

EMC Certificate (IRM-01)(EN) PDF Download

UL Certificate (IRM-01)(EN) PDF Download

CB Certificate (IRM-01)(EN) PDF Download

TUV Certificate (IRM-01)(EN) PDF Download

Test reports1

Test Report (IRM-01-24)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the IRM-01-24 for a small 24V PLC or automation interface circuit?

Yes, if the interface circuit needs constant 24V DC and stays within the 1W, 42mA output limit. It is intended for very low-power 24V control or signaling electronics rather than standard higher-current 24V automation loads.

Is the IRM-01-24 suitable for a low-power industrial sensor or monitoring node?

It can be suitable for a compact 24V monitoring or sensor node when the total current stays at or below 42mA. The miniature encapsulated form factor at 33.7 × 22.2 × 15.0 mm also supports board-level industrial electronics.

Can this model power a light 24V embedded I/O or relay logic board?

It can for very small 24V embedded I/O or relay logic circuits that fit within the 1W rating. Buyers should treat it as a constant voltage supply for low-draw board functions, not as a general-purpose 24V power source.

How does IRM-01-24 compare with other low-power IRM outputs?

The 1W IRM-01 series is available in 3.3V 300mA, 5V 200mA, 9V 111mA, 12V 83mA, 15V 67mA, and 24V 42mA versions, all in the same 33.7 × 22.2 × 15 mm encapsulated package with 85-305VAC input. The IRM-01-24 has the highest typical efficiency of the series at 77%; if a project needs 24V at more than 1W, a higher-power supply is required.

Is the IRM-01-24 appropriate for outdoor equipment or wide-temperature installations?

The operating temperature range is -30°C to +85°C, with output derating at higher ambient temperatures per the derating curve. The provided specifications do not list an IP rating, so outdoor or washdown suitability is not stated.

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Mean Well IRM-01-24 Switching Power Supply 1W 24V 42mA - Encapsulated

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