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Mean Well IRM-45-12ST Switching Power Supply 45.6W 12V 3.8A - Encapsulated
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Mean Well IRM-45-12ST Switching Power Supply 45.6W 12V 3.8A - Encap...
Description
Description
Features
| Universal AC input / Full range |
| No load power consumption < 0.1W |
| Protections: Short circuit / Overload / Over voltage |
| Compact size |
| Cooling by free air convection |
| Isolation class II |
| High reliability |
| 100% full load burn-in test |
| 3 years warranty |
General Specification
| AC input voltage range | 85~264VAC |
| AC inrush current (max.) | Cold start, 30A at 115VAC, 60A at 230VAC |
| Setup, rise, hold up time | 1000ms, 30ms, 50ms |
| Overload protection | 115%~160% rated output voltage, hiccup mode, auto-recovery |
| Over-voltage protection | 115%~135% rated output voltage |
| Withstand voltage | I/P-O/P: 3kVAC |
| Working temperature | -30~+70°C (refer to output derating curve) |
| Leakage current | Less than 0.25mA at 240VAC |
| Safety standards | UL60950-1, TUV EN60950-1 approved |
| EMC standards | EN55022 class B, EN61000-3-2,3, EN61000-4-2,3,4,5,6,8,11,EN55024 |
| Dimension (LxWxH) | PCB mounting style : 87x 52x 29.5mm Screw terminal style : 109x 52x 33.5mm |
| Vibration | 10~500Hz, 5G 10min./1 cycle, the period for 60 min. each along X, Y, and Z axes |
Specifications
Specifications
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BrandMean Well
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SeriesIRM Series
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Power Rating45.6 Watt
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Output Voltage12 Volt
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Rated Current3.8 Ampere
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Input Voltage85V~305V
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No of Output1
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Dimming ControlNone
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Standards MetBSMI,CB,CE,EAC,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-30°C~70°C
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Warranty3 Year
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Length4.29 in
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Width2.05 in
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Height1.32 in
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Weight0.5 lb
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the IRM-45-12ST for a 12V industrial control box with sensors and small relays?
Yes, it is a constant voltage 12V supply rated for 45.6W and 3.8A, which fits 12V control loads that stay within that output. The wide 85-305VAC input also suits equipment used across different AC supply ranges.
Is the IRM-45-12ST suitable for 12V embedded controllers or HMI support circuits?
It can be a fit when the controller or support electronics require a regulated 12V output and the total load does not exceed 3.8A or 45.6W. Its encapsulated format and screw terminal style make it more aligned with enclosed equipment than open-frame power sections.
Can this 12V power supply run 12V automation accessories inside a machine cabinet?
Yes, for 12V accessories that use constant voltage and stay within 45.6W total output, this model matches that electrical requirement. Its operating temperature range is -30°C to +70°C, which supports use in a wide range of enclosed industrial environments.
What is the difference between the IRM-45-12ST and other IRM-45 models?
Within the IRM-45 range, the outputs are 5V at 8A and 40W, 12V at 3.8A and 45.6W, 15V at 3A and 45W, 24V at 1.9A and 45.6W, and 48V at 0.94A and 45.12W. The ST versions use screw terminal style, while the non-ST versions in the same output class use PCB mounting style.
Is the IRM-45-12ST suitable for outdoor or cold-temperature use?
The operating temperature range is -30°C to +70°C, so its temperature spec covers both cold and hot conditions within that band. The provided specs do not list an IP rating, so outdoor or wet-location suitability cannot be confirmed from these specs alone.
Other IRM-45 Models
9 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well IRM-45-5ST Switching Power Supply 40W 5V 8A - Encapsulated | 40W | 5V | 8A | Indoor | $16.87 | View |
| Mean Well IRM-45-5 Switching Power Supply 40W 5V 8A - Encapsulated | 40W | 5V | 8A | Indoor | $15.35 | View |
| Mean Well IRM-45-48ST Switching Power Supply 45.12W 48V 0.94A - Encapsulated | 45.12W | 48V | 0.94A | Indoor | $16.86 | View |
| Mean Well IRM-45-48 Switching Power Supply 45.12W 48V 0.94A - Encapsulated | 45.12W | 48V | 0.94A | Indoor | $14.61 | View |
| Mean Well IRM-45-24ST Switching Power Supply 45.6W 24V 1.9A - Encapsulated | 45.6W | 24V | 1.9A | Indoor | $16.87 | View |
| Mean Well IRM-45-24 Switching Power Supply 45.6W 24V 1.9A - Encapsulated | 45.6W | 24V | 1.9A | Indoor | $14.61 | View |
| Mean Well IRM-45-15ST Switching Power Supply 45W 15V 3A - Encapsulated | 45W | 15V | 3A | Indoor | $16.86 | View |
| Mean Well IRM-45-15 Switching Power Supply 45W 15V 3A - Encapsulated | 45W | 15V | 3A | Indoor | $15.35 | View |
| Mean Well IRM-45-12 Switching Power Supply 45.6W 12V 3.8A - Encapsulated | 45.6W | 12V | 3.8A | Indoor | $15.35 | View |
