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Your cart is empty.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.
Jim Merrick
2025-08-20 18:08:12
Used this to add an in-operation light to our sump pump in the living room where we can easily see it. Mounted it in the faceplate of an outlet and looped the hot line to the pump through the induction coil. 10-minute install, instant peace of mind.
David P. Schmidt
2025-08-12 11:44:03
so I contacted the supplier directly for some tech questions. Told him what I needed it to do and how many amps my pumps pull from the specs and he adivsed this product with the red led. I have a sump pump with a 25' cord. in order for this to work the ring has to go around the black hot lead of the pump to sense the current draw. I decided to purchase a 12" 15amp extension cord to cut up as cutting the pump cord would void the warranty. I cut the outer plastic to expose the wires. Cut the black wire and put ring in then soldered and shrink tubed the connection. I tested it on a hair dryer and with normal air it did not work. Once I turned on the heat the LED lit up like an xmas tree. So I proceeded to install this outside by the sump pump. I drilled a 1/4" hole in the side of the outlet bubble cover and put the red led inside of it. Pluged in sump pump cord and tested it - as soon as pump comes on the LED lit up. Last night we had a huge storm and the pump was turning on / off and I could tell when it was on because of this and more importantly I will be able to tell when the pump switch (4' under ground) is stuck on or not. This little thing is awesome. No power required. Just senses the current draw and works.
Fredrick M. Knox
2025-07-29 16:08:25
I bought this indicator, not to tell me when the well pump was running while were using water, but if the pump was cycling on and off when NOT using water. The perfect well system leak detector. Easy to install and mount near the breaker box.
Albert
2025-07-09 16:29:32
I have a well pump that's 400 feet away from the house. The pump turns itself on and off according to water pressure. I needed an indicator inside the house for when the pump was running but the pressure switch is out on the pump. I could have tapped in to the pressure switch at the pump and run a wire back to an indicator light at the house, but I did NOT want to run another 400 feet of wire. The blue (1 amp turn-on point) current sensor solved the problem perfectly and was small enough to fit inside a standard electrical box with a switch. I drilled a 1/4" hole in the switch plate and mounted the indicator light. Woot!
C Milton
2025-06-14 14:27:17
Excellent product. Use it to monitor heating source for my water lines in well cover
Older than the Hills
2025-06-07 13:43:02
I recently installed a drain pan heater in my Daikin Mini Split, but I could not easily tell when the heater was on or off. The CR2550-R was easy to install and shows me when the heater is on. I originally thought off installing a 220vac light to show when the thermostat turned on, but this current indicator is much better because it shows that the heater element is working properly and not burned out. My heater element uses 0.6 amp so I looped 4 turns of 16awg wire through the coil to insure a strong turn on for the led. Works perfect.
tigerseye
2025-05-05 20:17:00
This CT is well potted and rugged. The old one it replaces fell apart inside the panel. This one will last for decades. Highly recommend it.
Joe Average
2025-04-26 15:50:33
This is a great device for letting you know if you have current in a wire. I attached a thermostat to the water pump on my evaporative cooler, and wanted to be able to tell easily whether or not the pump was running. This is a great way to do it. Just slip the coil over the hot wire to the pump and shove the wires back into the junction box. Position the led where you can see it and you’re all set. So much easier than wiring in a light.
JOSE LUIS
2025-04-12 12:25:18
TODO PERFECTO FUE EL PRODUCTO SOLICITADO EN MODELO Y MARCA SON ORIGINALES SE LOS RECOMIENDO
Stephen B.
2025-02-14 16:50:59
Now I can tell if the heater buried in my well is working this winter. It failed last winter, now if the light goes out I will know it is not working and I can start the backup before the well water freezes.
Customer
2025-01-09 16:06:47
Easy to install.Wires were not long enough so I spliced in a section.
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