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Mean Well PWM-40-48 Power Supply 40W 48V - Dimmable 840mA

PWM style outputfully isolated plastic caseIP67Class II design without FGbuilt-in 3 in 1 dimming

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PWM-40-48

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PWM-40-48

PWM-40-48 Fixed output Backorder

PWM-60-48 Dimmable Low stock

PWM-90-48 Dimmable Backorder

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The PWM-40 is a 40W Mean Well DIN rail power converter with a 150mm profile (input range: 90~305VAC, operating temperature: -40~+80℃).

Key Features

✓ 150mm width — DIN rail TS-35 compatible
✓ Input voltage range: 90~305VAC
✓ 3.75KVAC reinforced I/O isolation
✓ Wide operating temperature: -40~+80℃
✓ Protections: Short circuit / Overload / Over voltage / Over temperature
✓ Active PFC — meets international energy efficiency regulations
✓ Safety approvals: Note.5 UL8750( type ”HL” ), CSA C22.2 No. 250.13-12; ENEC EN61347-1, EN61347-2-13 independent,EN62384, IP67
✓ 3 years warranty

Frequently Asked Questions

Can the PWM-40-48 be installed in outdoor or moisture-prone environments?

Yes. The IP67 rating on the PWM-40-48 means it is fully dustproof and can handle temporary water immersion, making it suitable for outdoor enclosures, exterior signage, and wet-rated fixture applications. Its -40°C to +85°C operating temperature accommodates cold and warm climates alike.

How much 48V LED strip can the PWM-40-48 support?

The PWM-40-48 provides a maximum of 40W at 48V, delivering 0.84A. Divide 40W by your strip's rated wattage per meter to find the maximum run length — for example, a 10W/m strip supports up to 4 meters. Always confirm your strip's actual power consumption per meter.

Is the PWM-40-48 suitable for powering 48V LED strip in commercial signage?

Yes. The PWM-40-48 supports PWM-style dimming output and accepts the 3-in-1 dimming interface (0–10V, PWM signal, and resistance), making it appropriate for dimmable 48V LED signage and illuminated display applications. The IP67 housing also allows exterior sign mounting.

Can I use the PWM-40-48 for long-run 48V LED strip installations to minimize voltage drop?

Yes. Running 48V strips instead of 12V or 24V reduces current draw for the same wattage — the PWM-40-48 draws only 0.84A at full load — which lowers resistive losses over longer cable runs. This makes it a practical choice when installing strip lighting over distances where voltage drop would be problematic at lower voltages.

Is the PWM-40-48 a good choice for dimmable 48V LED cove or architectural lighting?

Yes. The built-in 3-in-1 dimming and constant voltage output make the PWM-40-48 well suited for cove, cornice, and architectural accent lighting using 48V LED strip. The compact 150 × 53 × 35 mm housing allows it to be concealed within the cove structure.

What is the difference between the PWM-40-48 and the higher-wattage 48V PWM models?

The PWM-40-48 provides 40W at 48V (0.84A). Higher-wattage 48V options in the series include the PWM-60-48 at 60W (1.25A), the PWM-90-48 at 90W (1.88A), the PWM-120-48 at 120W (2.5A), and the PWM-200-48 at 200W (4.17A). Choose based on the total wattage of your 48V load.

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Model	Power	Voltage	Current	IP Rating
Mean Well PWM-40-24 Power Supply 40W 24V - Dimmable 1.67A	40W	24V	1.67A	IP67	View
Mean Well PWM-40-36 Power Supply 40W 36V - Dimmable 1.12A	40W	36V	1.12A	IP67	View
Mean Well PWM-40-12 Power Supply 40W 12V - Dimmable 3.34A	40W	12V	3.34A	IP67	View

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Key Features

✓ 150mm width — DIN rail TS-35 compatible

✓ Input voltage range: 90~305VAC

✓ 3.75KVAC reinforced I/O isolation

✓ Wide operating temperature: -40~+80℃

✓ Protections: Short circuit / Overload / Over voltage / Over temperature

✓ Active PFC — meets international energy efficiency regulations

✓ Safety approvals: Note.5 UL8750( type ”HL” ), CSA C22.2 No. 250.13-12; ENEC EN61347-1, EN61347-2-13 independent,EN62384, IP67

✓ 3 years warranty

Mean Well PWM-40-48 Power Supply 40W 48V - Dimmable 840mA

Select model — 5 in this family

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Mean Well PWM-40-48 Power Supply 40W 48V - Dimmable 840mA

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