html{display:none} SEL-3360 Compact Industrial Computer | Schweitzer Engineering Laboratories


Compact Industrial Computer

The SEL-3360 hardened industrial substation computer is built to withstand harsh environments in utility and industrial applications. By eliminating all moving parts, including rotating hard drives and fans, and using error-correcting code (ECC) memory technology, SEL 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-3355 comes with an industry-leading ten-year warranty and is made in the USA. Discover why made in the USA is important.

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Kiosk Computer—Select the SEL-3360 for remote user applications that require the power of a high-performance PC. With its small footprint, the SEL-3360 packs a lot of computing power into a limited space (with a 2.0 or 2.8 GHz quad-core Intel Xeon 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 the SEL-3360, which is made to withstand vibration, electrical surges, fast transients, and extreme temperatures. You can 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. The SEL-3360 has an MTBF of over 100 years, ten times higher than that of a typical industrial computer. And, it is backed by a 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—The SEL-3360 uses an Intel Core i7 multicore or Xeon quad-core processor, enabling up to 2.8 GHz of processing power. High-speed single-level cell (SLC) SSDs in two bays, with up to 2 TB per bay, and ample system memory (4 to 32 GB of ECC memory) provide computing resources for your most demanding applications. The SEL-3360 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 meets these requirements with the following:

SEL designs, manufactures, and tests every computer in-house. The SEL-3360 has an MTBF of over 100 years, ten times higher than that of a typical industrial computer. And, it is 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 and Xeon Quad-Core Processors
The SEL-3360 features Intel multicore processors with Intel vPro technology and up to 32 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 3.1 ports, three digital 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 from three SSD options to suit your application:

  • SLC for the highest endurance and reliability.
  • Industrial multilevel cell (iMLC) for a higher capacity but reduced endurance.
  • Commercial multilevel cell (MLC) for the highest capacity and a lower cost.

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 loT Enterprise LTSC
  • Microsoft Windows Server 2016 Standard (CALs required)
  • Microsoft Windows Server 2019 (CALs required)
  • Linux (drivers available for REHL 6/7, CentOS 6/7, and Ubuntu 16.04/18.04)


Xeon quad-core 2.0 GHz is standard; Xeon quad-core 2.8 GHz is optional. 


4 GB of ECC RAM is standard. Choose up to 32 GB of ECC RAM.

Storage Options

Choose from single-level cell (SLC), commercial multilevel cell (MLC), and industrial MLC (iMLC) drives from 30 GB to 1,920 GB.

Power Supply

  • SEL-3360E: Internal SEL-9331 Power Supply
  • SEL-3360S: 12 Vdc input, optional external SEL-9331 Power Supply
  • The SEL-9331 is available in high-voltage (125–250 Vdc or 120–240 Vac) and low-voltage (48 Vdc) models.

PCIe Expansion Cards (SEL-3360E only)

  • 4-port Ethernet adapter card (add up to 1)
  • 6-port Serial adapter card (add up to 2)

Heatsink and Mounting Options

Choose between a standard convection-cooled heatsink or a conduction-cooled heatsink to best match your application needs.

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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