MEAN WELL IRM-30-48 is an encapsulated industrial AC/DC power module with PCB mounting, 48 V output, 0.63 A continuous rated current and 30.2 W rated output power under the specified conditions. It uses free-air convection cooling and Class II insulation without an FG pin.
Product Datasheet
Download MEAN WELL IRM-30 Datasheet (PDF)
The IRM-30 section is on PDF pages 25, 26, 27, 28. Refer to the complete mechanical drawings and notes when planning installation.
Model Code and Construction
| Complete model |
IRM-30-48 |
| Series |
IRM-30 industrial AC/DC power module. |
| Output code |
48 V nominal DC output. |
| Mounting suffix |
No suffix means PCB mounting style. |
| Housing |
94V-0 flame-retardant plastic case with silicone potting for heat dissipation and fundamental resistance to dust and moisture. |
Typical applications include industrial electrical equipment, mechanical equipment, factory automation and handheld electronic devices. Select the actual mounting version when designing the assembly; the PCB and ST versions have different dimensions, connections, weight and vibration ratings.
Output Ratings and Performance
| Nominal DC voltage |
48 V. |
| Continuous rated current |
0.63 A. |
| Catalogue-rated output power |
30.2 W. |
| Output current range |
0–0.63 A. |
| Ripple and noise, maximum |
300 mVp-p. |
| Voltage tolerance |
±2.5%; includes setup tolerance, line regulation and load regulation. |
| Line regulation |
±0.5%. |
| Load regulation |
±0.5%. |
| Efficiency, typical |
90%. |
Ripple and noise are measured at 20 MHz bandwidth with a 12-inch twisted pair terminated by 0.1 µF and 47 µF capacitors in parallel. Catalogue power and current retain their printed precision.
Input and Timing
| Input voltage |
85–305 VAC. |
| AC frequency |
47–440 Hz. |
| AC current, typical |
0.75 A at 115 VAC; 0.5 A at 230 VAC; 0.375 A at 277 VAC. |
| Cold-start inrush, typical |
25 A at 115 VAC; 45 A at 230 VAC. |
| Setup / rise time |
1000 ms / 30 ms at 230 VAC; 1500 ms / 30 ms at 115 VAC, full load. |
| Hold-up time, typical |
40 ms at 230 VAC; 12 ms at 115 VAC, full load. |
| No-load power consumption |
Less than 0.1 W. |
| Leakage current |
Less than 0.25 mA at 277 VAC. |
| Block-diagram switching frequency |
65 kHz. |
Unless stated otherwise, catalogue parameters are measured at 230 VAC input, rated load and 25°C ambient. Typical values are not guaranteed minima.
Protection
| Short circuit / overload |
Short-circuit protection is listed. Overload operates at 105–160% of rated output power: hiccup mode with automatic recovery after the fault is removed. |
| Overvoltage threshold |
50.4–64 V. |
| Overvoltage action |
Output voltage shuts off and is clamped by a zener diode. |
Protection thresholds are not additional continuous-output or peak-power ratings.
Cooling, Derating and Environment
| Cooling |
Free-air convection; the ambient derating graph is for horizontal mounting. |
| Operating temperature |
−30 to +85°C, subject to all applicable derating curves. |
| Temperature/load limits |
For this output, the 100 VAC and 230 VAC curves are at full load through 50°C, then fall to 50% at 70°C, 30% at 80°C and 20% at 85°C. |
| Input/load limits |
At 60 Hz: 80% load at 85 VAC, increasing to 100% at 100 VAC; 100% from 100 to 305 VAC. |
| Working humidity |
20–90% RH, non-condensing. |
| Storage |
−40 to +85°C; 10–95% RH. |
| Temperature coefficient |
±0.03%/°C over 0–50°C. |
| Vibration for this version |
2 G, 10–500 Hz, 10 minutes per cycle; 60 minutes each along X, Y and Z. |
| Operating altitude |
The specification lists 2,000 m. |
| Altitude note |
The general catalogue note states 3.5°C ambient-temperature derating per 1,000 m above 2,000 m for fanless models. This note does not by itself extend the listed 2,000 m operating or approval limit. |
Use the complete published curves for intermediate conditions. Apply input-voltage, ambient-temperature, installation and any peak-load restrictions together; +85°C is not a full-load operating point.
Mechanical Layout and Installation
| Catalogue dimensions, L × W × H |
69.5 × 39 × 24 mm. |
| Mechanical drawing tolerance |
±1 mm, unless an individual dimension is separately toleranced. |
| PCB connection view |
BOTTOM VIEW: at the right, upper pin AC/L and lower pin AC/N; at the left, upper pin −V and lower pin +V. |
| PCB footprint |
Input pin spacing 5.5 mm; output pin spacing 9 mm. The pin columns are 61.5 mm apart, with the left column 4 mm from the left edge. Upper pins are 4.5 mm below the top edge. |
| PCB pin dimensions |
Pin diameter 1.0 mm; projection 3.5 ±1 mm. Use the exact bottom-view footprint. |
| Soldering limits |
Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. |
Use the version-specific drawing for the mounting footprint and polarity. The assigned catalogue pages do not state a separate accessory, mating connector or conversion-kit order code; do not assume a PCB module can be converted to an ST model by adding an unlisted kit.
Follow the manufacturer installation instructions and actual terminal markings. No terminal tightening torque, wire gauge, installation clearance or separately supplied mounting screw is specified in these pages.
Safety and EMC
| Insulation design |
Class II, with no FG pin. |
| Input-to-output withstand voltage |
4.2 kVAC. |
| Input-to-output insulation resistance |
100 MΩ at 500 VDC, 25°C and 70% RH. |
| Listed safety approvals |
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 TC004; BSMI CNS15598-1. |
| Overvoltage category |
IEC/EN61558-1/-2-16 and IEC/EN/UL62368-1: OVC III up to 2,000 m. |
| Limited power source scope |
The catalogue LPS statement applies to this output version. |
| Conducted and radiated emissions |
BS EN/EN55032 (CISPR32) and CNS15936: Class B. Built-in EMI filtering supports the catalogue Class B statement without additional components. |
| Harmonics and flicker |
BS EN/EN61000-3-2: Class A harmonic current; BS EN/EN61000-3-3 voltage flicker. |
| Immunity framework |
BS EN/EN55035 and BS EN/EN61000-6-2. |
ESD, BS EN/EN61000-4-2: 8 kV air, Level 3; 4 kV contact, Level 2, criterion A. RF field (-4-3), EFT/burst (-4-4) and conducted immunity (-4-6): Level 3, criterion A. Surge (-4-5): 2 kV line-to-neutral, Level 4, criterion A. Magnetic field (-4-8): Level 4, criterion A.
BS EN/EN61000-4-11: greater than 95% dip for 0.5 periods, 30% dip for 25 periods, and greater than 95% interruption for 250 periods.
The final equipment must be checked for EMC compliance in its installed configuration. Silicone potting provides fundamental resistance to dust and moisture; these pages do not assign an IP ingress-protection rating.
Weight, Reliability and Catalogue Reference
| Catalogue unit-weight reference |
94 g, from the explicit 0.094 kg per-unit PACKING entry for this mounting version; not a measured net or shipping weight. |
| Carton reference |
144 pieces / 14.5 kg / 0.94 CUFT; not used to calculate unit weight. |
| Minimum MTBF estimates |
7713.0 thousand hours by Telcordia SR-332 (Bellcore); 593.4 thousand hours by MIL-HDBK-217F at 25°C. |
| Manufacturer warranty statement |
The catalogue lists a three-year warranty; manufacturer terms apply. |
| Specification revision |
IRM-30-SPEC, 2026-04-03; combined PDF pages 25–28. |
MTBF is a statistical reliability estimate, not a guaranteed service life.
