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Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply

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Certification
China Achievers Automation Limited certification
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"ACH has proven to be a reliable partner. Their products are genuine and high-quality, with competitive prices and on-time delivery. We trust them as our long-term supplier in automation."

—— Mohammed Al-Farsi, Procurement

"For us, cost efficiency and authenticity are key. ACH helps reduce expenses while ensuring reliable quality and timely supply, making them a strong partner in our operations."

—— Procurement Manager

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—— Supply Chain Director

"ACH offers quick response, flexible solutions, and fair pricing. The products are always genuine and reliable, and their friendly support makes cooperation smooth."

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"ACH provides genuine products with stable quality and fair pricing. Their fast response and reliable delivery give us confidence to continue working with them."

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Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply

Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply
Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply

Large Image :  Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply Get Best Price

Product Details:
Place of Origin: CN
Brand Name: Mean Well
Certification: ATEX
Model Number: MDR-20-12
Document: ACH-AB-P+F-E+H-IFM-ASCO-YOK...WA.pdf
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: Negotiable
Packaging Details: carton
Delivery Time: Negotiable
Payment Terms: T/T,XT,ALIPAY
Supply Ability: 100pcs per month
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Detailed Product Description
Power Supply: 1 Ambient Temperature: -
Electrical Rating: G Certifications: S
Highlight:

Mean Well 12V DIN rail power supply

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20W switching power supply with warranty

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MDR-20-12 DIN rail mount PSU

Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply

Mean Well MDR-20-12 DIN rail power supply. 12V DC output, 1.67A rated current, 85-264V AC universal input. UL 508, EN 62368-1 certified.

Product Overview

The Mean Well MDR-20-12​ is a compact 20W DIN rail mounted switching power supply​ designed for industrial control panel applications. It provides a regulated 12V DC output​ at up to 1.67A​ from a universal 85-264V AC​ input range. This unit features a plastic housing, built-in DC OK signal, and complies with key industrial safety standards including UL 508 and EN 62368-1.

Technical Specifications (Electrical)

Parameter

Specification

Output Voltage​

12 V DC​

Rated Output Current​

1.67 A​

Rated Power​

20 W​

Voltage Adjustment Range​

10.8 ~ 13.2 V DC

Input Voltage Range​

85 ~ 264 V AC​ (47-63 Hz) / 120 ~ 370 V DC

Efficiency​

typ. 81% (230V AC)

Ripple & Noise​

120 mVp-p max

DC OK Signal​

Yes (Active signal contact)

Technical Specifications (Mechanical & Protection)

Parameter

Specification

Mounting​

DIN Rail TS-35/7.5 or 15

Dimensions (W x H x D)​

22.5 x 90 x 100 mm​

Weight​

Approx. 0.17 kg

Operating Temperature​

-20 ~ +70 °C​ (with derating)

Cooling​

Natural convection

Protections​

Overload (105-160%), Short circuit, Overvoltage (13.8-16.2V)

Safety Standards​

UL 508, EN/UL/CSA 62368-1, EAC TP TC 004

Isolation​

I/P-O/P: 3 kV AC

Key Features

  • Universal Input:​ Wide input range (85-264V AC) ensures stable operation under fluctuating grid voltages.

  • DC OK Indicator:​ Built-in relay contact (DC OK) provides a signal for remote monitoring of power status.

  • Auto-Recovery:​ Overload and short-circuit protection with automatic recovery after fault clearance.

  • Space Saving:​ Slim 22.5mm width allows high-density mounting on standard DIN rails.

Applications

  • PLC and relay control circuits

  • Industrial automation sensors and actuators

  • Small machine control cabinets

Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply 0

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About ACH

Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL  to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.

Mean Well MDR-20-12 | 12V 20W DIN Rail Switching Power Supply 1
Frequently Ask & Questions
Are preferential prices available?

Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.

Are the Products Genuine OEM Units?

Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.

How will you arrange shipment?

We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.

What is the warranty of goods?

One-year Warranty.

How long is the logistics cycle of the product?

Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.

Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this product

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

B
Budi Hartono
Indonesia May 4.2026
Helpful (2)
Mean Well MDR-20-12 is reliable, compact, and works perfectly for my setup.
Tag:

VEGA Instruments,

vibrating level switch,

Mean Well 12V DIN rail power supply

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Contact Person: sales2

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