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Compact Industrial Computer

The tough SEL-3360 Compact Industrial Computer is built to withstand harsh environments in utility substations, industrial control systems, and automation systems. By eliminating all moving parts (including rotating hard drives and fans) and using error-correcting code (ECC) memory technology, SEL compact industrial computers have over ten times the mean time between failures (MTBF) of typical industrial computers. Designed, manufactured, and tested to the same standards as our protective relays, every SEL-3360 comes with an unprecedented ten-year worldwide SEL warranty.

Starting At

2,850 USD

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Kiosk Computer—Select the SEL-3360 for remote user applications that require the power of a PC. With its small footprint, the SEL-3360 packs a lot of computing power into a limited space (2.5 GHz dual-core or 2.1 GHz quad-core Intel Core i7 processor). Passive cooling and a broad temperature range mean it is possible to install SEL computers in locations where off-the-shelf computers would not survive. With a projected MTBF of over 100 years, the SEL-3360 can operate with little or no maintenance, making it ideal for unattended operation.

Original Equipment Manufacturer (OEM) Software Appliance—Whether you are currently shipping a tough appliance, thinking about deploying your software as a dedicated appliance for rugged environments, or just at the idea stage, consider reselling the SEL-3360 with a custom overlay specially crafted for your business.

Distributed Control Systems—Move your computing-intensive control applications as close to your equipment as you need. A small footprint and broad temperature range make it possible to install the SEL-3360 in locations where many computers would either not fit or not survive. Since SEL computers can be installed just about anywhere, use them to ensure local control of equipment is maintained even when communications with the master control center are lost. Remotely service units using the built-in Intel Active Management Technology (AMT) functionality.

Engineering Workstation—Meet or exceed IEEE 1613 and protective relay specifications for harsh environments with any SEL rugged computer, made to withstand vibration, electrical surges, fast transients, and extreme temperatures. Access the engineering workstation remotely and securely using Microsoft Windows Remote Desktop tunneled over IPsec or through Intel AMT with remote KVM over IP.


SEL computers are server-class computers with respect to RAS—reliability, availability, and serviceability. Industrial computer systems need to always be available and easy to service when necessary. SEL computers satisfy these server class requirements in the following ways:

Reliability—SEL designs, manufactures, and tests every highly dependable computer in-house. Our computing systems currently have a MTBF of over 100 years, ten times higher than that of the typical industrial computer. In addition, our computers are backed by our ten year, no-questions-asked warranty.

Availability—Features like Intel AMT for out-of-band remote management are designed to keep your system operational for longer periods.

Serviceability—AMT allows diagnostic logs to be viewed for evaluation and service even when the unit is powered off. Our computers also feature SEL’s unique system monitor (SysMon) with a watchdog timer. Users can reboot into another operating system (OS) for diagnostics or to batch software, and then bring the system back online, all remotely. Additionally, SEL’s SysMon logs computer events specific to the installed system to aid in faster recovery. Use AMT’s KVM-over-IP feature to get hands-on help and guidance from an expert back at the central office, which can speed up serviceability


High-Performance Computing Power—All of the SEL computers have the third-generation Intel Core i7 multicore processors, enabling 2.5 GHz (dual-core) and 2.1 GHz (quad-core) of processing power. High-speed single-level cell (SLC) solid-state drives (SSDs) in two bays, with up to 256 GB per bay, and ample system memory (4 to 16 GB of ECC memory) provide computing resources for your most demanding applications. Each computer is built to run reliably in rugged environments.

Protective Relay Standards—Install SEL rugged computers in harsh environments, including environments with temperatures ranging from –40° to +75°C (–40° to +167°F), up to 15 kV of electrostatic discharge, fast transients, radiated emissions, overcurrents, and pulsed magnetic field disturbances. All SEL computers conform to IEC 61850-3, IEEE C37.90, IEEE 1613, and IEC 60255 standards.

SEL-3360S (Front View)

SEL-3360S Front View

SEL-3360S (Rear View)

SEL-3360S Back View

SEL-3360E (Front View)

SEL-3360E Front View

SEL-3360E (Rear View)

SEL-3360E Back View


How to Use SEL Backup and Recovery Tool

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How to Use SEL Backup and Recovery Tool

Industrial computer systems require 24/7 availability and ease of service when necessary. SEL computers are designed with a focus on RAS—reliability, availability, and serviceability. The SEL-3360 satisfies these requirements with the following:

SEL designs, manufactures, and tests every dependable computer in-house. Our computing systems currently have an MTBF of over 100 years, ten times higher than that of the typical industrial computer. And, SEL computers are backed by a ten-year, no-questions-asked warranty.

Designed to keep your system operational for longer periods, the SEL-3360 can be powered by dual external SEL-9331 Power Supply modules connected in parallel, which can be energized from two independent sources. The two-slot 2.5" SATA drive bay can be loaded with solid-state drives (SSDs) and supports RAID 0 and 1 configurations. SEL’s unique system monitor (SysMon), Backup and Recovery Tool (BaRT), and watchdog timer maximize system availability by alerting users of potential issues and minimizing downtime with automatic recovery from system crashes.

Intel AMT provides high serviceability. Users can perform diagnostics, install software or operating systems, and even command a reboot remotely. Additionally, SEL’s SysMon logs computer events specific to the installed system to aid in quick recovery.

Robust Hardware Design
SEL computers are designed for maximum reliability, with no fans or moving parts, and are backed by a ten-year warranty. The SEL-3360 has a durable power supply, an advanced thermal management system, error-correcting memory, and single-level cell (SLC) SSDs to provide reliable operation in the harshest environments.

Reliable Operation—Meets IEEE 1613, IEEE C37.90, IEC 61850-3, and IEC 60255 Protective Relay Standards
Install the SEL-3360 in harsh environments. It is designed to withstand 15 kV electrostatic discharge, fast transients, conducted and radiated emissions, up to 15 g shock, seismic and sustained vibration, voltage surge, and large magnetic field disturbances.

Multiple Power Supply Options
The SEL-3360E comes with an internal SEL-9331 Power Supply, while the SEL-3360S can be powered by an external SEL-9331 or any other 12 Vdc source. Two models of the SEL-9331 Power supply are available: High Voltage (120/240 Vac or 125/250 Vdc) and Low Voltage (48 Vdc).

Watchdog Functionality
Monitor and alarm for numerous system services and conditions with an embedded controller that provides an extra level of computer system reliability. The embedded controller includes a programmable system monitor interface and alarm configuration.

High-Performance Intel Core i7 Multicore Processor
The SEL-3360 features a next generation Intel 2.5 GHz dual-core or 2.1 GHz quad-core processor with Intel vPro technology and up to 16 GB ECC RAM, providing the power you need for any application.

Multiple I/O Ports
Directly connect to local peripherals and high-speed network interfaces with two Ethernet ports, audio I/O, six USB ports, three video ports, and two serial ports.

Flexibility with PCIe Slots
The SEL-3360E provides two PCI Express expansion slots which allows you to add additional serial ports, Ethernet ports, I/O, or other PCI Express cards that your application requires.

Operating System Choices
Select your choice of operating systems, such as Microsoft Windows Server 2012 R2 or Windows 7 Professional 64-bit.

Large Storage Capacity
Choose the SSD for your application. With a two-drive SSD bay, you can create one large volume or configure a typical RAID system that provides redundant and more reliable storage.

  • Operating Systems
    Microsoft Windows 10 IoT Enterprise LTSB
    Microsoft Windows Server 2012 R2 Standard (CALs required*)
    Microsoft Windows Server 2016 (CALs required)
  • Processor
    Dual-core 2.5 GHz Intel Core i7 processor is standard. Optional quad-core 2.1 GHz Intel Core i7 processor is available.
  • Memory
    4 GB ECC RAM is standard. Choose up to 16 GB of ECC RAM.
  • Storage Options
    Choose up to two solid-state drives (SSDs): 30, 60, 120, or 250 GB capacity per drive.
  • Power Supply
    3360E: Internal SEL-9331 Power Supply
    3360S: 12 Vdc input, optional external SEL-9331 Power Supply
    SEL-9331 available in High Voltage 125/250 Vdc or 120/240 Vac and Low Voltage 48 Vdc models
  • Heatsink and Mounting Options:
    Choose between a standard convection-cooled heatsink or a conduction-cooled heatsink to best match your application need.
  • Conformal Coating:
    Protect equipment from harsh environments and airborne contaminants, such as hydrogen sulfide, chlorine, salt, and moisture. Learn more about conformal coating.


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