Reliability
Apply in harsh substation environments. The SEL-3400 exceeds IEEE C37.90 and IEC 60255 protective relay standards, and accurately operates from –40° to +85°C (–40° to +185°F).
Increased Distance for IRIG-B
Synchronize devices that have demodulated IRIG-B by using an SEL-3400 to extend the distance between the clock and the devices up to 131.2 feet. This is very useful in large facilities where you want to avoid using multiple GPS clocks. The SEL-3400 is designed to compensate for its input-to-output latency. It can also be configured to compensate for the latencies of connected cabling.
Cable Management
Combine one SEL-2407 Satellite- Synchronized Clock with an SEL-3400 at the top of each equipment panel to simplify cabling. When setting up your configuration this way, you'll be able to look at the SEL-3400 Module's status LEDs and easily see that all devices in that panel have precise time.