Black Box MDR-PS Series DIN Rail Industrial Power Supply - 40W, 12VDC

Engineered for rugged industrial environments, the Black Box MDR-PS Series DIN Rail Industrial Power Supply delivers reliable, regulation-ready 12 V DC power with a robust 40 W capacity. This DIN-rail mounted supply is a cornerstone for control panels, automation cabinets, distributed I/O, and harsh-process environments where dependable power is non-negotiable. Its compact form factor, finger-safe terminals, and comprehensive protection features minimize maintenance and downtime, keeping machines, sensors, actuators, and PLCs running smoothly. With cUL and CE approvals, the MDR-PS series meets stringent global safety standards, making it suitable for installations across factories, data centers, and process lines. The unit’s dual input variants support 120 V AC and 230 V AC, enabling seamless deployment in different regions without the need for power adapters or extensive rewiring. The extended operating temperature range further enhances reliability in hot or dusty environments, where ambient conditions can fluctuate dramatically. In short, this 40 W, 12 V DC DIN rail power supply is designed to deliver consistent, high-quality power, enabling your automation system to perform with precision and resilience.

• Rugged 40 W, 12 V DC power for industrial automation: A compact, dependable source of clean 12 V DC current that can support PLCs, sensors, actuators, and distributed I/O modules, ensuring stable operation even as loads shift in demanding environments.
• Global-ready input options: Available in variants that support 120 V AC or 230 V AC input, enabling straightforward deployment across regions without the need for adapters or voltage converters. This versatility reduces inventory complexity and simplifies panel design for multinational installations.
• Safety and durability you can trust: Finger-safe terminals reduce the risk of accidental contact during installation, while built-in protections guard against short circuits, overloads, and over-voltage events that could damage connected devices or the power supply itself.
• Extreme reliability for tough environments: An extended operating temperature range of -4 to +158 °F (-20 to +70 °C) ensures consistent performance in hot enclosures, dusty environments, or cramped industrial spaces where ambient conditions vary significantly from season to season.
• Quality you can rely on: cUL and CE approved for global compliance, with a DIN rail mounting design that keeps electrical enclosures organized and serviceable. The compact footprint helps maximize cabinet space while maintaining easy access for maintenance and upgrades.

Technical Details of Black Box MDR-PS Series DIN Rail Industrial Power Supply

• Output: 12 V DC
• Power rating: 40 W
• Input voltage: 120 V AC or 230 V AC (dual-region variants)
• Mounting: Standard DIN rail mounting for quick, secure installation
• Terminals: Finger-safe terminal design for safe hand-in and wiring
• Protections: Short-circuit protection, overload protection, and over-voltage protection
• Approvals: cUL and CE certified
• Operating temperature: -4 to +158 °F (-20 to +70 °C)

how to install Black Box MDR-PS Series DIN Rail Industrial Power Supply

Installing the MDR-PS Series is straightforward and designed to minimize downtime in busy control cabinets. Begin by planning the layout inside a properly rated enclosure to ensure adequate airflow and easy access for future maintenance. Ensure the enclosure is de-energized before starting any wiring work to protect personnel and equipment. If your installation requires a particular DIN rail length or mounting kit, verify compatibility with your enclosure’s rail standards before beginning. Once you have verified the space, install the power supply on the DIN rail by engaging the rail clips or mounting brackets provided with the unit, ensuring it sits firmly and vertically for proper heat dissipation and vibration resistance.

Next, prepare the input wiring. Identify the local power requirements for your installation: 120 V AC or 230 V AC. Connect the live (L) and neutral (N) conductors to the corresponding terminals on the power supply, observing correct polarity and tightening all connections to the torque specifications recommended by the manufacturer. If your system requires an earth ground, connect the protective earth conductor to the designated ground terminal to improve safety and reduce the risk of electrical noise coupling into sensitive control electronics. Install any required overcurrent protection, such as a fuse or circuit breaker, in accordance with local electrical codes and the manufacturer’s recommendations. After securing the input wiring, proceed to the output side: connect your 12 V DC load to the device’s output terminals, again observing proper wiring polarity and using appropriately rated conductors for the expected current. Keeping runs short and neat helps minimize voltage drop and makes service easier in crowded panels.

With wiring complete, perform a careful verification of all connections. Ensure no stray strands or conductive debris are present at terminal points, and that insulation is intact around exposed conductors. Reinstall any covers or protective barriers and verify that the enclosure is compliant with safety standards. Re-energize the system and use a calibrated multimeter to confirm that the output voltage is stable at 12 V DC under nominal load. If your application has critical reliability requirements, consider implementing remote monitoring or status reporting to detect voltage drift, overload events, or fanless cooling constraints before they impact operation. Finally, document the installation, including model, input voltage setting, wiring diagrams, and protective devices used, so future service personnel can diagnose or upgrade the system rapidly.

Frequently asked questions

• Q: What is the output and power specification of the MDR-PS series? A: The power supply delivers 12 V DC at up to 40 W, suitable for a wide range of industrial devices including PLCs, sensors, actuators, and I/O modules.
• Q: Which input voltages are supported? A: The MDR-PS series is available in variants that accept 120 V AC or 230 V AC input, enabling easy use across different regions without additional converters.
• Q: How does it handle harsh environments? A: It features finger-safe terminals and an extended operating temperature range (-4 to +158 °F / -20 to +70 °C) to maintain reliability in hot or dusty industrial environments.
• Q: Is this power supply safe for DIN rail mounting? A: Yes. It is specifically designed for DIN rail installations in control panels and automation cabinets, with protective features to help prevent faults from propagating to connected equipment.