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Mean Well IRM-60-48ST Switching Power Supply 60W 48V 1.25A - Encapsulated

Name: Mean Well IRM-60-48ST Switching Power Supply 60W 48V 1.25A - Encapsulated
Brand: Mean Well
SKU: IRM-60-48ST
Price: 20.45 USD
Availability: InStock

miniature encapsulated typescrew terminal style

SKU IRM-60-48ST

$20.45 USD

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In stock

Overview

IRM-60-48ST is the 48V output model of this series: rated current 1.25A, rated power 60W, typical efficiency 91%. Type ST: Screw terminal style.

IRM-60 is a 60W miniature (87*52*29.5mm) 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~ 305 Vac. 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 91% and the extremely low no-load power consumption below 0.15W, IRM-60 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. In addition to the PCB mounting style model, IRM-60 series also offers the screw terminal style model (ST).

Features

3.43''x2.05''compact size
PCB,chassis or screw terminal mounting version
Universal input 85~305Vac
No load power consumption<0.15W
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-60-48STSpecifications from the official datasheet (2025-11-21 edition)

OUTPUT

DC VOLTAGE: 48V
RATED CURRENT: 1.25A
CURRENT RANGE: 0 ~ 1.25A
RATED POWER: 60W
RIPPLE & NOISE (max.)^Note.2: 240mVp-p
VOLTAGE TOLERANCE^Note.3: ±2.5%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 1000ms, 30ms/230Vac 2000ms, 30ms/115Vac at full load
HOLD UP TIME (Typ.): 50ms/230Vac 12ms/115Vac at full load

INPUT

VOLTAGE RANGE: 85 ~ 305Vac
FREQUENCY RANGE: 47 ~ 440Hz
EFFICIENCY (Typ.): 91%
AC CURRENT (Typ.): 1.8A/115Vac 1.0A/230Vac 0.9A/277Vac
INRUSH CURRENT (Typ.): COLD START 30A/115Vac 60A/230Vac
LEAKAGE CURRENT: < 0.25mA/277Vac

PROTECTION

OVERLOAD: 115%~160% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 50.4 ~ 64.8V 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
SOLDERING TEMPERATURE: Wave soldering: 265℃,5s (max.); Manual soldering: 390℃,3s (max.)
OPERATING ALTITUDE^Note.4: 2000 meters

SAFETY & EMC

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); IEC/EN 60335-1(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: 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: 6433.3K hrs min. Telcordia SR-332 (Bellcore) ; 1226.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: PCB mounting style : 87*52*29.5mm (L*W*H) Screw terminal style : 109*52*33.5mm (L*W*H)
PACKING: PCB mounting style : 0.195Kg;60pcs/12.7Kg/0.94CUFT Screw terminal style :0.228Kg;50pcs/12.4Kg/0.56CUFT

MODEL ENCODING

Blank: PCB mounting style
ST (this model): Screw terminal style

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-60-48ST Derating Curve — Derating Curve

IRM-60-48ST Mechanical Specification — Mechanical Specification

Typical applications

Industrial electrical equipment
Mechanical equipment
Factory automation equipment
Handheld electronic device

Downloads

Datasheet1

IRM-60-48ST datasheetIRM-60-SPEC.PDF · 2025-11-21 edition PDF Download

Certificates4

EMC Certificate (IRM-60)(EN) PDF Download

UL Certificate (IRM-60)(EN) PDF Download

CB Certificate (IRM-60)(EN) PDF Download

TUV Certificate (IRM-60)(EN) PDF Download

Test reports1

Test Report(IRM-60-48)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the IRM-60-48ST in a 48V control cabinet for automation equipment?

Yes, if the equipment needs a constant 48V output and stays within 60W and 1.25A. Its encapsulated construction and 109.0 x 52.0 x 33.5 mm form factor suit internal cabinet use where a compact 48V AC-DC module is needed.

Is the IRM-60-48ST a fit for 48V embedded or OEM power distribution inside equipment?

It is a fit for embedded or OEM systems that need a 48V constant voltage source up to 1.25A. The wide 85-305VAC input supports products intended for varied mains environments without changing the power supply model.

Can this model power 48V communications or instrumentation hardware?

It can power 48V communications or instrumentation loads that remain within 60W and 1.25A. Buyers should size the connected equipment against both the 48V output and the available current, not voltage alone.

Would the IRM-60-48ST work in a compact industrial test or monitoring enclosure?

Yes, for 48V DC test, sensing, or monitoring assemblies that need up to 60W. The encapsulated design and 0.228 kg weight are practical for enclosed equipment where a self-contained AC-DC module is preferred.

What is the difference between the IRM-60-48ST and other IRM 48V options?

Within the IRM-60 series, the 48V models are IRM-60-48 and this IRM-60-48ST, both rated 60W, 48V, 1.25A. Compared with IRM-60-48, this ST version has the same electrical rating but uses screw terminals and a larger 109.0 x 52.0 x 33.5 mm body with 0.228 kg weight.

Can the IRM-60-48ST be used outdoors or in hot and cold locations?

The listed operating temperature range is -30°C to +85°C, with output derating at higher temperatures per the derating curve, so it covers a wide indoor equipment temperature range. No IP rating is provided in the specs, so outdoor exposure resistance is not confirmed from the supplied data.

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