html{display:none} SEL-CR Underground Current Reset Fault Indicator - Specifications | Schweitzer Engineering Laboratories


Power SourceMechanical target: Load current 
LED display: Replaceable battery (standard)—1,200 flashing hours (2.4 Ah, 3.6 V lithium AA cell)
Display OptionsReflective red target
Combination target and BEACON LED
Tamperproof Bolt or BEACON Bolt LED
Inrush Restraint Response Time300 ms
Nominal Trip Rating50 to 1,200 A
Trip Rating Tolerance±10% (specified at +25°C [+77°F]) at the calibrated outside diameter
Trip Response Time1 ms at trip rating (24 ms optional)
Minimum Reset (Operating) Current3 A continuous, 1.5 A optional
Typical Reset Time25 seconds at 10 A and above
Reset TypeStandard: Reset is triggered by current restoration for main phase sensor only.
Optional: Three-phase reset automatically resets when current is restored in each phase of a three-phase set.
Maximum Fault Current25 kA for 10 cycles at 60 Hz
Mounting Diameter RangesStandard: 0.75" to 2.10" (19 mm to 53 mm)
Optional large core: 1.8" to 2.5" (46 mm to 64 mm)
Submersibility15 ft (4.6 m)
HousingUV-stabilized polycarbonate
Transformer CoreVinyl-coated silicon steel
Temperature Range–40° to +85°C (–40° to +185°F)