html{display:none} SEL-2533 Annunciator | Schweitzer Engineering Laboratories



This compact, ten-window annunciator is ideal for displaying alarm conditions and notifying personnel of abnormal conditions in each individual rack, panel, generator, equipment block, power line terminal, assembly line, conveyor, or other apparatus. Communications ports on the annunciator enable many cost- and labor-saving configurations. For example, use the SEL-2533 Annunciator as a combined annunciator and field I/O module by wiring contact inputs and outputs to the SEL-2533 and then communicating digitally to a plant's distributed control system (DCS), SEL Real Time Automation Controller (RTAC), another SEL-2533 station computer, or other device. Or, order the SEL-2533 without any local I/O, and drive the annunciator inputs with information from remote devices via the communications ports.

Annunciation and Notification Features Comparison

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Alarm Identification—Apply configurable labels to uniquely identify each alarm point LED. Preprinted labels (with factory default text) and blank labels are shipped with the SEL-2533. Download a template and instructions for printing on blank labels.

Monitoring and Control—Test and commission annunciator panels with live device status information on an acSELerator QuickSet SEL-5030 Software human-machine interface (HMI) screen. Operate and monitor the device remotely from a virtual front panel.

Custom Configuration—Create as few or as many points as needed for each application by using programmable logic. Implement multiple alarm panels for high-density alarm applications. Indicate the status of up to ten alarm points.

Digital I/O Sequential Events Recorder (SER)—Assign different element names to each defined SER point for the asserted and deasserted states. Provide a clear view of an event to operators and viewers.

Contact Follower—Provide a digital output corresponding to each digital input. Repeat the state of the input, and allow connection to a programmable logic controller (PLC), remote terminal unit (RTU), interlocking device, or other intelligent electronic device (IED).


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      Individually labeled columns and rows for easy identification

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      Field-configurable alarm window labels

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      Silence, acknowledge, reset, and test pushbuttons

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      Superbright LEDs

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      Front EIA-232 port for easy access to settings and status

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      Optional fiber-optic serial port

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      IRIG-B input to tag events to 1 millisecond

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      Standard EIA-232 port for use with DNP3, Modbus, and SEL protocols

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      Optional communications card with EIA-232 or EIA-485 port



Communicate with up to four high-speed serial ports via DNP3, Modbus, or SEL protocols. Three EIA-232 ports are standard; one EIA-485 or EIA-232 port is optional.

Time-Tagged SER
Connect a precise time source, and time-tag alarm events to the nearest millisecond. Report time-tagged messages with DNP3 or the SEL Fast SER protocol.

Comprehensive Annunciation
Select from six International Society of Automation (ISA-18.1) standard sequences. Implement other ISA sequences with new custom sequence settings. Superbright LEDs provide an easily visible alarm indication in any lighting condition. Red or amber bicolor LEDs add flexibility.

Logic Processing
Create custom alarm conditions using programmable logic to combine inputs and communications data without costly wiring.

Meet the demands of your harshest environments. The SEL-2533 exceeds stringent vibration, electrostatic discharge, electromagnetic interference, and temperature requirements.

Configurable Labels
Print custom alarm labels using the terminology that matches your application. Easily reprint labels to accommodate expansion, reconfiguration, or other changes.

  • Contact Inputs and Outputs (I/O)
    There are three options for I/O on the SEL-2533:
    DescriptionDigital Inputs (DI)Digital Outputs (DO)
    Remote Annunciator: 
    Windows are driven by data from communications.
    Standard Annunciator:
    DI for each window.
    Annunciator With Follower Contacts:
    DI and DO for each window.
  • Serial Ports
    The standard SEL-2533 Annunciator has one front-panel EIA-232 console port and one rear-panel EIA-232 port. A fiber-optic serial port and an additional EIA-232 or EIA-485 port are optional.
  • Protocols
    The following protocols are included in the standard SEL-2533: SEL Fast Meter, SEL Fast SER, SEL Fast Operate, SEL Mirrored Bits communications, ASCII, and Modbus RTU. DNP3 Level 2 Outstation is optional.
  • Conformal Coating
    Protect equipment from harsh environments and airborne contaminants, such as hydrogen sulfide, chlorine, salt, and moisture.

Minimum Software Version

Product Revision Z Number acSELerator QuickSet Version SEL Grid Configurator Version
SEL-2533 R101 001

Latest Firmware Versions

There are no firmware versions available for this product.

Product Revision Firmware ID Date Available Serial Number
SEL-2533 R200-V0 SEL-2533-R200-V0-Z002001-D20221007 11/7/22 3223110001

The Firmware IDs for older versions of the firmware can typically be found in Appendix A of the instruction manual.

Minimum Software Version

Product Revision Z Number acSELerator QuickSet Version SEL Grid Configurator Version
SEL-2533 R101 001

Instruction Manuals

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2533 - Software Tab


acSELerator QuickSet SEL-5030 Software

QuickSet is a tool for engineers and technicians to quickly and easily configure, commission, and manage power system devices. QuickSet includes a Graphical Logic Editor and a device template tool to reduce configuration time and streamline deployment.

Learn more and download on the QuickSet software page.

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