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SEL-311L

Line Current Differential Protection and Automation System

311L#03

  • 4U horizontal rack mount
  • Current differential relay and backup distance protection
  • Single-pole differential and single-pole Zone 1 distance backup protection
  • Three EIA-232 ports, an EIA-485 port with IRIG-B, two 10/100BASE-T Ethernet ports, and two line differential 1300 nm fiber pairs
  • 14 standard outputs and 6 inputs (125 Vdc control input voltage)
  • Additional 8 high-speed, high-current interrupting outputs and 8 inputs (125 Vdc control input voltage)
Power Supply 48/125 Vdc or 120 Vac125/250 Vdc or 120/230 Vac
Current Input 1 A phase, 1 A neutral5 A phase, 5 A neutral1 A phase, 1 A neutral5 A phase, 5 A neutral
Configuration Number 311L#0301 311L#0303 311L#0302 311L#0304
Typically Ships In 10 Days 10 Days 10 Days 10 Days
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