Can I use the RS-100-3.3 for 3.3V logic, FPGA, or processor-heavy embedded hardware?

Yes, it is a constant-voltage 3.3V supply rated for 20A and 66W. That makes it relevant for embedded or digital hardware that needs a high-current 3.3V rail in an enclosed system.

Is the RS-100-3.3 suitable for industrial electronics that run on a 3.3V bus?

It can fit industrial electronics designed for 3.3V constant voltage, as long as the total draw remains within 20A and 66W. Its 88-264VAC input also supports equipment intended for a broad AC input range.

Can this model power multiple 3.3V control or communications boards in one enclosure?

It is suited to grouped 3.3V loads in a protected enclosure when the combined requirement stays within 20A and 66W. The compact 159.0 × 97.0 × 38.0 mm package helps where internal equipment space is tight.

Is the RS-100-3.3 rated for indoor or outdoor conditions?

The listed operating temperature range is -25°C to +70°C, and the features note 5G vibration resistance. No IP rating is provided, so the available specs support protected indoor industrial use rather than direct outdoor exposure.

How does the RS-100-3.3 compare with the other RS-100 models?

The provided RS-100 outputs are 66W at 3.3V 20A for RS-100-3.3, 80W at 5V 16A for RS-100-5, 102W at 12V 8.5A for RS-100-12, 105W at 15V 7A for RS-100-15, 108W at 24V 4.5A for RS-100-24, and 110.4W at 48V 2.3A for RS-100-48. RS-100-12-OB is also listed in the family, but no output power or current figures are supplied for that version.

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Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well RS-100-3.3 Power Supply 100W 3.3V 20A

4.8 (14 reviews)

miniature sizeeconomicalwithstand 5G vibration and 70°C operation

SKU RS-100-3.3

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Select model — 7 in this family

RS-100-3.3

RS-15-3.3 15W 3.3V Backorder

RS-100-3.3 100W 3.3V Low stock

RS-150-3.3 150W 3.3V Backorder

RS-25-3.3 25W 3.3V Backorder

RS-35-3.3 35W 3.3V Backorder

RS-50-3.3 50W 3.3V Backorder

RS-75-3.3 75W 3.3V Backorder

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The RS-100 is a Mean Well DIN rail power converter with a 59mm profile (input range: 125~373VDC).

Key Features

✓ 59mm width — DIN rail TS-35 compatible
✓ Input voltage range: 125~373VDC
✓ Cooling by free air convection — no minimum load required
✓ Protections: Short circuit / Overload / Over voltage
✓ Safety approvals: UL62368 TUV EN62368-~ EAC TP TC 004
✓ 3 years warranty

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Model	Power	Voltage	Current
Mean Well RS-100-5 Power Supply 100W 5V 16A	80W	5V	16A	View
Mean Well RS-100-48 Power Supply 100W 48V 2.3A	110.4W	48V	2.3A	View
Mean Well RS-100-24 Power Supply 100W 24V 4.5A	108W	24V	4.5A	View
Mean Well RS-100-15 Power Supply 100W 15V 7A	105W	15V	7A	View
Mean Well RS-100-12 Power Supply 100W 12V 8.5A	102W	12V	8.5A	View

Customer reviews

4.8 Reviews verified for authenticity

5 ★ (12)

4 ★ (1)

3 ★ (1)

2 ★ (0)

1 ★ (0)

Reviewed by 14 customers across the RS series

Exactly as specced
By Daniel R.|2026-06-18✓ Verified Buyer
Model: RS-15-24Quantity: 4
Drop-in replacement, ran cool under full load on our DIN rail. Shipped same day.
Workhorse
By Maria K.|2026-05-28✓ Verified Buyer
Model: RS-50-24Quantity: 12
Bought a dozen for a control panel build — every one perfect.
Solid little supply
By Greg T.|2026-04-30✓ Verified Buyer
Model: RS-100-24Quantity: 2
Does the job. Wish the terminals were a touch bigger.

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Key Features

✓ 59mm width — DIN rail TS-35 compatible

✓ Input voltage range: 125~373VDC

✓ Cooling by free air convection — no minimum load required

✓ Protections: Short circuit / Overload / Over voltage

✓ Safety approvals: UL62368 TUV EN62368-~ EAC TP TC 004

✓ 3 years warranty

Mean Well RS-100-3.3 Power Supply 100W 3.3V 20A

Select model — 7 in this family

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Other RS-100 Models

Customer reviews

Exactly as specced

Workhorse

Solid little supply

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Mean Well RS-100-3.3 Power Supply 100W 3.3V 20A

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