Weidmüller is a German company known for high-quality industrial connectivity and automation products, including power supplies that deliver stable DC power to equipment in control cabinets, machinery, and process systems. Their power supply units (PSUs) are designed for: Industrial automation Factory and process control Machine building Energy and transportation sectors Weidmüller’s PSUs are known for efficiency, reliability, compact design, and compliance with international standards (UL, CE, IEC, etc.). 🧩 Key Features Feature Description Wide input voltage range Typically 85–264V AC (single-phase), 320–575V AC (three-phase) High efficiency Often >90%, reducing energy losses Compact size Saves space in control cabinets Wide temperature range From -25°C to +70°C, suitable for harsh environments Redundancy & parallel operation For increased reliability and power capacity Certifications UL, CE, ATEX, IECEx, DNV GL, etc. Protective functions Overvoltage, short-circuit, overload, and thermal protection 📦 Main Series of Weidmüller Power Supplies 1. PROeco Series – Cost-Effective & Compact Ideal for standard industrial applications Slim design, basic monitoring DIN rail mountable 🔹 Input: 85–264V AC 🔹 Output: 12V, 24V, 48V DC 🔹 Power ratings: 72W – 960W 🔹 Efficiency: ~90% 🔹 Compact, great price-performance ratio 2. PROmax Series – High Performance & Robust Designed for demanding loads (motors, valves, etc.) High boost capability and continuous overload 🔹 Input: 85–264V AC / 90–300V DC 🔹 Output: 24V DC (5A–40A models) 🔹 Power boost: 150% for 4 seconds 🔹 Operating temp: -25°C to +70°C 🔹 Ideal for automation, robotics, and machine control 3. PROtop Series – Premium Power Supply with Advanced Features For high-end industrial and smart factory applications Digital communication via IO-Link or CANopen Long service life and ultra-high efficiency 🔹 Output: 24V, 48V DC 🔹 Power ratings: 120W – 960W 🔹 Efficiency: >95% 🔹 Integrated load monitoring 🔹 Suitable for Industry 4.0 systems 4. INSTA Series – Cabinet-Building and Control Panel Applications Used in light-duty industrial or building automation Slim and easy to install 🔹 Output: 24V DC 🔹 Good for PLCs, sensors, and small loads 🔹 Lower cost alternative for less demanding environments 🔌 Additional Power Modules Module Use Redundancy Modules Ensures uninterrupted operation with dual PSUs Buffer Modules Provide power for short outages (few seconds) UPS Modules Uninterruptible power supply with batteries DC/DC Converters Change one DC voltage level to another IO-Link Communication Modules For integration into smart factory networks 🧠 How to Select a Weidmüller Power Supply Determine Load Requirements Total current (Amps) and voltage (typically 24V DC) Choose the Series Based on Need Standard use → PROeco Demanding loads → PROmax Smart factory or premium → PROtop Light-duty/control cabinet → INSTA Decide on Redundancy or Backup Consider redundancy modules or buffer systems for critical systems Check Environmental Conditions Temp range, DIN-rail space, certifications Future Expansion Select a slightly higher wattage model if loads may increase 🏭 Typical Applications Industry Use Automation Powering PLCs, I/O modules, sensors Machine Building Drives, actuators, HMIs Process Control DCS systems, valves, controllers Transportation Railway control systems, tunnel automation Renewables Solar inverters, battery management Oil & Gas Hazardous environment with ATEX versions 🔧 Example: PROmax 240W Power Supply Parameter Value Input Voltage 85–264V AC Output Voltage 24V DC Output Current 10A Efficiency 92% Width 60 mm Overload 150% for 4 sec Protection Overload, short-circuit, overvoltage