Project Description

SEL-2407 Satellite-Synchronized Clock

SEL-2407 Satellite-Synchronized Clock
SEL-2407 Satellite-Synchronized Clock provides time display, reliability, durability and high-accuracy timing to ± 100 nanoseconds.”Reliable, Accurate, Low-Price Time Source” 

Front- and Rear-Panel Diagrams

SEL-2407 Front Panel SEL-2407 Rear Panel
Front Rear

Reliable—Exceeds IEEE and IEC Relay Standards

Apply in harsh substation environments. Exceeds IEEE C37.90 and IEC 60255 protective relay standards. Universal power supply operates from 18—300 Vdc and 85—264 Vac. Accurate operation from —40° to +80°C.


Apply for synchrophasor, relay event correlation, and other high- accuracy timing needs. Demodulated IRIG-B outputs with ±100 nsaccuracy meet requirements for existing and future timing applications.

Low Price—High Function

Provides six demodulated IRIG-B time-code outputs. Three of the six outputs are user-selectable for 1 PPS or 1 kPPS output. Includes built-in display without high-priced options.

Simple Operation

Program time offsets and output formats with easy-to-operate control (DIP) switches mounted behind the front panel. Settings can be made without removing the SEL-2407 from its mounting location.


2401 2407 2488
Substation Time Automation
Industrial Time Automation
Synchrophasor Time Standard
Control Room Viewing
Recloser Timing Source
IEEE 1344/IEEE C37.118 Time Quality Testing
Time-Synchronized Event Reporting
Source for Time-Tagged SER
Meets Synchrophasor Accuracy Requirements
Demodulated IRIG-B Output(s)
Modulated IRIG-B Output(s)
GPS Satellite Tracking
Synchronized Pulse Output
High-Gain GPS Antenna and Feed Line +
14 mm (0.56 in) Tall Display
Meets IEEE C37.90 and IEC 60255 Surge and Environmental Standards
Force Time Quality Mode (For Testing)
Rack-Mount, Panel-Mount, or Wall-Mount Hardware
Universal Power Supply
ASCII Commands and Reports
Fiber Communications Port +
Standard Feature
+ Model Option

Product Literature