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header-product Power supply unit Black Box MDR-40-12, 40 W, 12 V output, 85–264 VAC input, 47–63 Hz, blue/white

Power supply unit Black Box MDR-40-12, 40 W, 12 V output, 85–264 VAC input, 47–63 Hz, blue/white

Power supply Black Box MDR-40-12 40 W Photo 1
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Short description

Black Box MDR-40-12 is a compact 40 W switching power supply providing a 12 V output for industrial and electronics applications. It accepts universal AC input 85–264 VAC at 47–63 Hz, with 1% voltage tolerance and 500 ms rise time. Certified to cUL and CE standards, the unit measures 40 × 100 × 90 mm and comes in blue and white housing for DIN-rail or panel installations.
Warranty: 2 Years
SKU: 11679571
Manufacturer: black box
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Product information

Description

Black Box MDR-40-12 is a compact 40 W switching power supply that provides a regulated 12 V DC output for industrial and electronics applications. It accepts a universal AC input of 85–264 VAC at 47–63 Hz with 1% voltage tolerance and features a short rise time. The unit is housed in a blue and white enclosure sized for DIN-rail or panel installation and is certified to cUL and CE standards.

Advantages

The MDR-40-12 combines a narrow DIN-rail design with protection features including short-circuit, overload and over-voltage protection, and finger-safe terminals for safer handling. Its wide input range and extended operating temperature capability make it suitable for varied industrial environments, while an LED indicates DC output status to simplify monitoring.

Suitable for

  • Powering industrial control equipment and automation modules
  • Supplying Heavy Duty Edge Switches and Media Converter Switches
  • DIN-rail or panel-mounted electronic installations with limited space

Key specifications

  • Output power: 40 W
  • Output voltage: 12 V DC (regulated)
  • Input voltage: 85–264 VAC, 47–63 Hz
  • Voltage tolerance: ±1%
  • Rise time: approximately 500 ms
  • Operating temperature range: -20 to +70° C (extended)
  • Dimensions: 40 × 100 × 90 mm
  • LED indicator for DC power
  • Finger-safe terminal connections
  • Protections: short circuit, overload, over-voltage
  • Approvals: cUL, CE

How to use

Mount the power supply on a DIN rail or panel according to installation space and secure the enclosure. Connect the AC input within the specified 85–264 VAC range and observe correct polarity on the 12 V DC output connections. Verify the LED indicator to ensure DC output presence. Follow standard wiring and grounding practices and allow adequate ventilation around the unit during operation.

Usage recommendations

Use the MDR-40-12 in environments within the stated temperature range and ensure the connected load does not exceed 40 W. Although the device can accept DC input in a wider range, only use DC voltages if suitable and certified for your application. Regularly inspect terminal connections and keep ventilation clear to maintain reliable operation.

Specifications

Total power:
40 W
Efficiency:
86 %
Weight:
0.3 kg
Product colour:
Blue, White
All features

Power

Total power:
40 W
Efficiency:
86 %
Hold time:
50 ms
Input current:
1.1
AC input frequency:
47 - 63
AC input voltage:
85 - 264
Maximum input current (@110V):
1.1 A
Maximum input current (@220V):
0.7 A

Design

LED indicators:
Y
Product colour:
Blue, White

Certificates

Certification:
cUL, CE

Weight & dimensions

Weight:
0.3 kg
Height:
90 mm
Width:
40 mm
Depth:
100 mm

Operational conditions

Operating relative humidity (H-H):
20 - 90
Storage temperature (T-T):
-40 - 85
Operating temperature (T-T):
-20 - 70
Storage relative humidity (H-H):
10 - 95
Operating temperature (T-T):
-4 - 158

Other features

Rise time:
500 ms
Voltage tolerance:
1 %

Description

Machine translation. Load original

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Customer questions

FAQ

What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All black box products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized black box service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: total power, efficiency, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.