html{display:none} SEL-ARU Underground AutoRANGER Fault Indicator - Specifications | Schweitzer Engineering Laboratories


 SEL-ARUSEL-ARU With Fiber-Optic Display
Trip Thresholds50 to 1,200 A
Voltage RangeEqual to voltage class of shielded underground cable
Maximum Fault Current25 kA for 10 cycles
Minimum Operating Current3 A
Current-Activated Timed Reset0, 2, 4, 8, or 12 hoursN/A
Time Reset With Current Reset OverrideN/A0, 2, 4, or 8 hours
Battery (for BEACON LED display only)3.6 V high-capacity lithium battery with a 20-year shelf life
Trip Response TimeFunction of trip threshold
Inrush Restraint Response Time5 cycles
Approximate Weight560 g (1.25 lbs) 840 g (1.85 lbs)
Temperature Range–40° to +85°C (–40° to +185°F)