The CR2550 series Remote Current Indicators are a low cost method for providing a visual indication of electrical current flow. The indicators are factory calibrated to provide a preset turn-on point. The value of the turn-on point is determined by the customer and specified in the part number. Attached to the transformer is a high efficiency, bi-polar LED that illuminates when the current is above the turn-on point. The indicator is available as standard with 11 inch long leads and a red LED indicator. designed as a low cost method for providing a visual indication of electrical current flow. The current-carrying wire is routed through the window opening in the current sensing transformer. Specifications- Turn-on Point: 0.75 AAC RMS. Maximum continuous rating: 20 AAC RMS. 20 AAC Max, 600 VAC Max rating. Thermoplastic case material. Frequency: 50 to 400 Hz bandwidth. Operating temperature range: -30 C to +60 C. Storage temperature range: -55 C to +85 C. LED . LED Mounting hardware: Plastic one-piece, press-in lens supplied. Indicator is supplied with LED attached to current sensing transformer. Supplied with both one-piece press in lens and two-piece mounting clip.