DIN rail power supply
Switch mode power supplies
| S8VK-C | S8VK-G | S8VK-S | S8VK-X | S8AS2 | S8VK-T | S8VK-WB | S8VK-WA | S8FS-C | S8FS-G | S8VS-A/B | |
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| Book type | Book type | Book type | Book type | Book type | Book type | Book type | Book type | Metal frame | Metal frame | Book type | |
| Screw | Screw | Push-in plus | Push-in plus | Push-in plus | Screw | Push-in plus | Push-in plus | Screw | Screw | Screw | |
| 24 V | 5 V 12 V 24 V 48 V | 24 V | 5 V 12 V 24 V | 24 V | 24 V | 24 V 48 V | 24 V 48 V | 5 V 12 V 15 V 24 V 36 V 48 V | 5 V 12 V 15 V 24 V 48 V | 24 V | |
| 100 to 240 VAC | 100 to 240 VAC 90 to 350 VDC | 100 to 240 VAC 90 to 350 VDC | 100 to 240 VAC 90 to 350 VDC | 100 to 240 VAC | 3x 320 to 576 VAC | 3x 320 to 576 VAC | 200 to 240 VAC | 100 to 240 VAC | 100 to 240 VAC | 100 to 240 VAC | |
| 2.5 A 5 A 10 A 20 A | 0.65 A 1.3 A 2.5 A 5 A 10 A 20 A | 1.3 A 2.5 A 5 A 10 A 20 A | 2.5 A 3.75 A 5 A 10 A 20 A | 10 A with 6 branches 20 A with 8 branches | 5 A 10 A 20 A 40 A | 10 A 20 A 40 A | 85 A | 0.7 A 1.1 A 1.5 A 2.2 A 3.2 A 4.5 A 6.5 A 8.8 A 14.6 A | 0.65 A 1.5 A 2.2 A 4.5 A 6.5 A 14 A 27 A | 2.5 A 3.8 A 5 A 7.5 A 10 A 20 A | |
| Capacitor back-up Overvoltage protection Overload protection DIN-rail mounting Screw mounting (with bracket) N+1 Redundancy | EN61000-3-2 Capacitor back-up Overvoltage protection Overload protection DIN-rail mounting Screw mounting (with bracket) EMI Class B UL Class 2 (up to 60 W) N+1 Redundancy Parallel operation by 2 units Power boost 120% | EN61000-3-2 Capacitor back-up Undervoltage alarm (240 and 480W models) Overvoltage protection Overload protection DIN-rail mounting EMI Class B UL Class 2 (up to 60 W) N+1 Redundancy Parallel operation by 2 units Power boost 120% (30, 60 and 120W models) Power boost 150% (240 and 480W models) | EN61000-3-2 Capacitor back-up Undervoltage alarm Overvoltage protection Overload protection DIN-rail mounting EMI Class B UL Class 2 (up to 90 W) N+1 Redundancy Parallel operation by 2 units Power boost 120% (30, 60 and 120W models) Power boost 150% (240 and 480W models) Indication monitor (7 - segment LED) Network (Ethernet/IP , Modbus TCP) Replacement Time Calculation Function Display of output voltage/current/peak hold current Display of total run time Self-diagnostics function | EN61000-3-2 Undervoltage alarm Overvoltage protection Display of output value Maintenance forecast Runtime monitor Tripping functions Overtemperature detection | EN61000-3-2 Capacitor back-up Overvoltage protection Overload protection DIN-rail mounting Screw mounting (with bracket) EMI Class B N+1 Redundancy Parallel operation by 2 units Power boost 120% | EN61000-3-2 Capacitor back-up Overvoltage protection Overload protection DIN-rail mounting EMI Class B Power boost 150% (5 V of 50 W, 12 V) Power boost 150% (240 and 480W models) LED and signal output indicator | EN61000-3-2 Capacitor back-up Overvoltage protection Overload protection DIN-rail mounting EMI Class B Power boost 150% LED and signal output indicator | EN61000-3-2 (up to 150 W) Overvoltage protection Overload protection DIN-rail mounting Screw mounting (with bracket) EMI Class B (up to 150 W) | EN61000-3-2 Overvoltage protection Overload protection DIN-rail mounting Screw mounting (with bracket) EMI Class B Parallel operation by 5 units (600 W / 24VDC) | EN61000-3-2 Undervoltage alarm Overvoltage protection Display of output value Maintenance forecast Runtime monitor | |
| S8VK-R S8T-DCBU-02 S8M S8V-NF | S8VK-R S8T-DCBU-02 S8M S8V-NF | S8VK-R S8T-DCBU-02 S8M S8V-NF | - | - | S8VK-R S8T-DCBU-02 S8M | S8VK-R S8T-DCBU-02 S8V-CP | S8V-CP | S8VK-R S8T-DCBU-02 S8M S8V-NF | S8VK-R S8T-DCBU-02 S8M S8V-NF | S8VK-R S8T-DCBU-02 S8M S8V-NF | |
| S8VK-C | S8VK-G | S8VK-S | S8VK-X | S8AS2 | S8VK-T | S8VK-WB | S8VK-WA | S8FS-C | S8FS-G | S8VS-A/B |
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S8VK-C
The cost effective book type power supply
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S8VK-G
The right power supply for your application
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S8VK-S
Switch mode power supply
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S8VK-X
Switch Mode Power Supply S8VK-X
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S8AS2
Simplify Field Operations with an All-in-One Solution
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S8VK-T
Compact 3-phase input power supply
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S8VK-WB
Compact 3-phase 400 V Power Supply
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S8VK-WA
1- phase power supply with high performance
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S8FS-C
High reliability at a reasonable price
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S8FS-G
Superior basic performance that ensures reliability. Wide range of standards certification and greater usability.
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S8VS-A/B
Power Supply with a display
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DownloadTechnology
What is an Industrial Power Supply (PSU)?
What are DIN rail power supplies?
Why choosing the right power supply matters?
Feature
What key features should you look for when selecting an industrial power supply?
Choosing an industrial power supply goes far beyond simply matching voltage and current requirements. Industrial environments are often harsh and demanding, so it’s essential to consider factors like performance, reliability, and system compatibility. When evaluating options, pay close attention to these key features:
| Feature | Description | Why It Matters |
| Lifetime / Reliability | Built with High-quality components extend PSU lifespan. | Minimizes downtime and maintenance costs. |
| Power Boost | Provides temporary power reserve up to 1.5 times rated current for short periods. | Supports short-term high loads. Improves system stability. Reduces the need for an oversized power supply. |
| Compact Size | Smaller form factor saves panel space and reduces overall system costs. | Enables space-efficient, modular designs. |
| High Efficiency | Converts more input power to usable output while minimizing energy waste and heat generation. | Cuts energy costs and reduces heat buildup. |
| EMC/EMI Compliance | Built-in noise filters protect against electromagnetic interference from nearby devices like inverters. | Ensures stable output in electrically noisy environments. |
| Inrush Current | Withstands high peak currents during machine startup in addition to normal operational loads. | Protects PSU and devices during power-on. |
| Global Standards Compliance | Meets international certifications (CE, UL, CSA, CCC, EN/IEC) for worldwide deployment. | Eases global compliance and product rollout. |
| Marine Approval | Stricter EMC and vibration standards for marine applications, often indicating superior quality. | Indicates robust, high-quality design. |
| Wide Ambient Range | Operates in extreme temperatures. | Reliable in harsh or variable environments. |
| Value Design for Panel™ | Power supply - and other components - are designed to fit better, install faster, work more efficiently in control panels. | It helps save space, reduces heat, and makes wiring easier. Everything follows global standards. |
Solutions
What types of industrial PSU's (Power Supplies units) are there?
Industrial power supplies come in a range of configurations, each tailored to meet specific industrial requirements. OMRON offers versatile options and covers the most common categories:
- AC/DC DIN rail PSUs (e.g., S8VK-C/G/T/W series) from 15 W to 2000 W
- Metal‑framed industrial PSUs (e.g., S8FS-C/G) up to 600 W with global certifications
- Others OMRON
- UPS modules (e.g., S8BA) compact DC-DC UPS prevents voltage drop and power failure
What is an uninterruptible power supply (UPS)?
The purpose of UPS is to deliver backup emergency power during mains outages, ensuring continuous uninterrupted flow of electrical power via battery, until the main source is restored. OMRONs product S8BA UPS is a DIN-rail mounted, battery-backed DC-DC unit that prevents voltage dips from affecting PLCs or other control devices.
What types of devices are needed for modern control cabinets?
- Electronic circuit breakers* (S8V‑CP) For DC circuit protection in the event of short circuits or overcurrent
- EMC Noise filters (S8V-NF) Achieve safe noise and surge reduction with minimal effort and a compact, space-saving design
- Redundancy modules (S8VK‑R) used with power supplies providing a backup system for critical applications
What factors affect the reliability and lifespan of an industrial power supply?
The reliability of a power supply is the ability to perform over years without failure. It's influenced by several key factors:
Inside tip: OMRON offers PCB board coating for better resistance to environment.
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1Heat or thermal stressHeat is the number one enemy of electronics. Running a PSU near its upper temperature limit or with poor ventilation will shorten its life. OMRON PSU's use high-grade 105°C electrolytic capacitors and robust thermal design. Running below maximum temperature or a cooling system extends lifespan significantly.
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2Mechanical stressThat is usually vibration or shock, something common in factories, can cause solder joints to crack over time. This is why high-reliability units undergo vibration testing or use ruggedized construction.
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3Electrical stressIncludes how much of its capacity is being used (continuous full load vs. partial load).
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4Component quality & design qualityA power supply built with quality parts and smart engineering will simply last much longer.
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5Environmental conditionsDust, humidity, and corrosive atmospheres shorten PSU lifespan. Humidity, leads to corrosion or electrical shorts if protection is lacking.
What are voltage and current ratings in power supplies?
Here are some essential voltage, current, and input requirements for automation systems:
1. Standard DC Output Voltages
| Voltage | Primary Applications | Usage in Automation |
| 5V DC | Logic circuits, microcontrollers | Low-power sensors and control modules |
| 12V DC | Relays, LED indicators | Lighter automation components |
| 24V DC | PLCs, sensors, actuators, solenoids | Industry standard - most critical |
| 48V DC | Communication systems, motor control, Renewable energy systems | High-power applications, long-distance transmission |
2. Current Ratings & Load Handling
| Current Range | Typical Applications | System Scale |
| 0.5-1A | Small control systems, monitoring devices | Compact PLCs, basic I/O |
| 1-5A | Standard control panels with multiple I/O | Medium automation systems |
| 10 - 20A | Large automation systems with servo drives | Extensive I/O, pneumatic systems |
| 30-40A | Heavy industrial applications | High motor loads, redundancy systems |
3. Input Compatibility
| InputType | Voltage Range | Best Applications |
| Single-phase | - | - |
| AC | 85-264 V | Standard industrial applications |
| DC | 90-350 V | Standard industrial applications |
| Three-phase | - | - |
| AC | 320-575 V | High-power European installations |
| DC | 450-810 V | High-power European installations |
24 V DC
For example, 24 V DC is the most common control voltage in industrial systems, and DIN rail PSUs that output 24 V are also widely used to power PLCs, sensors, relays etc. For more on specification, watch our video or visit our downloads section to get the full data sheets.
Applications
Applications – Where are industrial power supplies used?
From manufacturing floors to automation systems. If your operations can't afford downtime, and you need robust, durable, and stable DC power solutions for mission-critical applications, we got you covered:
Factory automation:
Renewables & data centers
Laboratory & Test Equipment:
How do industrial PSU's integrate with PLCs and automation systems?
Modern power supplies now offer built-in support for industrial communication protocols, directly aligning with automation needs. Leading models can interface via Modbus TCP/RTU, CANopen, PROFINET, EtherNet/IP, and IO-Link ensuring compatibility with virtually any PLC or industrial control system.
With an Ethernet/IP-enabled power supply, voltage, current, and service life can be monitored in real time enabling preemptive fault detection and smarter load management by the PLC. This enables sharing predictive maintenance measures and enhanced monitoring of power systems, reducing energy costs and facilitating quicker fault diagnosis.
Inside tip: OMRON’s S8VK-X series includes EtherNet/IP and Modbus TCP connectivity for IoT-ready integration.
Functionality
Remote Monitoring and Diagnostics
- Predictive Maintenance Ready - Monitors equipment health and predicts failures in advance to reduce unplanned downtime.
- Ethernet/IP Connectivity - Built-in communication enables centralized, remote monitoring across the facility.
- Simple Monitoring Software - Free PC software allows site-contained monitoring of multiple units, with fast and easy setup.
- Real-time Insights - Tracks key parameters (voltage, current, peak load, runtime, lifespan) for precise status checks.
- Lifespan & Health Data - Displays remaining usable life based on usage and conditions, eliminating guesswork and unnecessary replacements.
- Maintenance Efficiency - Replaces manual inspections with data-driven scheduling, improving uptime and reducing costs.
- Reliability: Industrial PSUs are critical for automation, manufacturing, and commercial systems, ensuring stable power.
- WideApplications: From powering PLCs, sensors, and robots to supporting renewables, data centers, transport, and process control systems.
- DIN Rail Advantage: Compact, robust, and easy-to-install PSUs that optimize panel space, improve design efficiency, and reduce costs.
- Selection Matters: Choosing the right PSU prevents downtime, protects infrastructure, and guarantees operational reliability.
Customer Cases
Solution Case Studies
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