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MEAN WELL RS-50-12 Enclosed Power Supply, 12 V, 4.2 A, 50.4 W
MEAN WELL RS-50-12 Enclosed Power Supply, 12 V, 4.2 A, 50.4 W
MEAN WELL RS-50-12 Enclosed Power Supply, 12 V, 4.2 A, 50.4 W

At a glance

Output Voltage
12 V
Rated Output Current
4.2 A
Rated Output Power
50.4 W
Input Voltage Range
88 to 264 V AC or 125 to 373 V DC
Efficiency (typ.)
84.5%
Mounting
Enclosed
MEAN WELL logoModel RS-50-12Current model

MEAN WELL RS-50-12 Enclosed Power Supply, 12 V, 4.2 A, 50.4 W

Price on request

At a glance

Output Voltage
12 V
Rated Output Current
4.2 A
Rated Output Power
50.4 W
Input Voltage Range
88 to 264 V AC or 125 to 373 V DC
Efficiency (typ.)
84.5%
Mounting
Enclosed

Mounts inside a control panel, machine or equipment cabinet to supply a steady DC voltage from the mains. Enclosed power supply, 12 V, 4.2 A, 50.4 W. Universal AC input, full range.

Output voltage
5 V12 V

Part of the MEAN WELL RS-50 series. Compare both models

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Ask for helpCompatibility, sizing and what else you need.
  • WarrantyManufacturer warranty under MEAN WELL's terms: 3 years. Warranty claims
  • DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery

Overview

What it is

The MEAN WELL RS-50-12 is a enclosed power supply from the RS-50 series (50 W Single Output Switching Power Supply), rated 12 V, 4.2 A, 50.4 W.

What it is used for

Supplies a regulated 12 V DC rail from mains inside a panel or enclosure, for loads such as CCTV cameras, access controllers, LED lighting and control circuits.

Key features

  • Universal AC input, full range.
  • Protections: short circuit, overload and over voltage.
  • Cooling by free air convection.
  • LED indicator for power on.
  • 105 °C long life electrolytic capacitors.
  • Withstands 300 V AC surge input for 5 seconds.

Key Specifications

  • Output Voltage: 12 V.
  • Rated Output Current: 4.2 A.
  • Rated Output Power: 50.4 W.
  • Input Voltage Range: 88 to 264 V AC or 125 to 373 V DC.
  • Efficiency (typ.): 84.5%.

Buying considerations

Size the unit with headroom above the connected load and check the derating information in the datasheet for high ambient temperature or low input voltage. Other models in the same series are listed on this page.

Installation considerations

MEAN WELL treats this unit as a component of the final equipment, so approvals and EMC performance should be confirmed for the complete installation. Wiring and safety details are in the official datasheet linked below.

Features

MEAN WELL RS-50-12 Enclosed Power Supply, 12 V, 4.2 A, 50.4 W, dimension drawing
Check the datasheet for tolerances.

Size and fit

Dimensions
99 x 97 x 36 mm (L x W x H)
Weight
0.41 kg
Mounting
Enclosed

Technical specifications

Key facts

What is it?
Enclosed power supplyBrand MEAN WELL, model RS-50-12
What does it output?
12 V, 4.2 A, 50.4 W
What input does it accept?
88 to 264 V AC or 125 to 373 V DC
How does it mount?
Enclosed
Which documents are available?
Datasheet, certificate Open documents

RelatedSeriesMEAN WELL RS-50 series, 2 modelsDocumentsAll MEAN WELL documents

Output

Output Voltage
12 V
Rated Output Current
4.2 A
Output Current Range
0 to 4.2 A
Rated Output Power
50.4 W
Output Voltage Adjustment Range
10.8 to 13.2 V
Output Voltage Tolerance
±1.0%
Ripple and Noise (max.)
120 mVp-p
Efficiency (typ.)
84.5%

Input

Input Voltage Range
88 to 264 V AC or 125 to 373 V DC
Input Frequency Range
47 to 63 Hz

Protection

Withstand Voltage
I/P-O/P: 3 kV AC, I/P-FG: 2 kV AC, O/P-FG: 0.5 kV AC

Environment

Operating Temperature
-25 to +70 °C (refer to derating curve)
Operating Humidity
20 to 90% RH non-condensing
Cooling
Free air convection

Physical

Dimensions
99 x 97 x 36 mm (L x W x H)
Weight
0.41 kg
Mounting
Enclosed

Approvals

MTBF
2956.7K hrs min. Telcordia SR-332 (Bellcore); 575.2K hrs min. MIL-HDBK-217F (25 °C)

Other

Series
RS-50
Warranty
Manufacturer warranty under MEAN WELL's terms: 3 years. How claims work
Product attributes and shipping details
Brand

MEAN WELL
Power Output

50.4 W

Wiring overview

Installation must be done by a qualified person, following the datasheet.

RS-50-12 wiring overview AC mains line, neutral and frame ground connect to the supply input. The +V and -V output terminals connect to the DC load at 12 V, up to 4.2 A. AC mains AC input per datasheet L line N neutral FG earth RS-50-12 Enclosed AC/DC supply L N FG +V -V DC load 12 V DC up to 4.2 AIllustrative, not to scale. Terminal order and wire sizes: see the datasheet. FG connects to protective earth.

Downloads

Documentation

  • RS-50 series datasheetPublicDatasheet · Family · meanwell.com
    Download
Certificate and compliance document (1)
  • RS-50 CE declaration of conformityPublicCertificate · Family · meanwell.com
    Download

Series documents can differ from your exact model. Report a wrong or missing file

Questions about this product

What input voltage does the RS-50-12 accept?

MEAN WELL lists 88 to 264 V AC or 125 to 373 V DC for this model.

Ask about this modelSetup, compatibility, what is in the box
Downloads

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Looking for an alternative?

We list alternatives only when we have checked they suit the same job. Compare other models in the category, or ask us to suggest one for your site.

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