Three phase and single phase Clip on AC current sensors
AC current transducers, Current sensing probes
Converting ac current to an isolated voltage or 4-20mA loop output - instantaneous or rms output

The RCTi & RCTrms sensors convert ac current to an isolated voltage or 4-20mA current loop output.  Both offer a choice of proportional (rms) and instantaneous outputs.   The available RCT ranges are 0-250A to 0-50,000Apk.  Both RCTi and RCTrms provide accurate measurement over a wide bandwidth ensuring precise measurement even with harmonically distorted waveshapes - using a flexible clip-on sensing coil.   The RCTs are available in single and three phase.

The RCT sensor can provide all popular process control voltage and current loop outputs along with custom output options.   A range of through hole or split core sensors means that connection is possible without shutting down an operating feeder.   Typical applications are process control systems like PLC, SCADA Data logging systems, where power, energy and current monitoring is required.  Typical loading situations are ac/dc VFD drives, ultrasonics, welding, power conversion and power distribution.  For all RCT models, a NIST/NPL (UKAS) traceable calibration certificate and certificate of conformance is supplied.   All RCT sensors use UL or CSA approved materials.

RCT series flexible split core current sensors

              
RCTi / RCTrms single phase                                 RCTi / RCTrms Three phase
 

Includes signal conditioner and power

Get pdf data sheets:       RCTi single phase      RCTi-3ph Three Phase

The RCTi, RCTi-3ph and RCTrms are ideal for retrofit replacement for medium/large current, split core current transformers operating with transducers.  Excellent performance at power frequencies 1Hz to 1MHz, also ideal for VFD drives and induction heating.  The new RCTi and RCTrms current sensor/transducers are suited to permanent or semi permanent installation. The coil sensor is durable, thin, lightweight, flexible and will easily clip-around the conductor. The output from the transducer can be ac voltage (RCTi, RCTi-3ph) or a true rms output (RCTrms).  Typically the RCTi is used with data loggers, oscilloscopes, data acquisition cards, power analyzers, harmonic analysis and in power quality applications.  The RCTrms is used in process control Scada Systems and industrial power applications, where a dc output represents the rms ac current.

Models

RCT 2- Range 250/500A        RCT 3- Range 500/1000A
  RCT 4- Range 1000/2500A     RCT 5- Range 2500/5000A
     RCT 6- Range 5000/10000A   RCT 7- Range 10000/25000A
     RCT 8- Range 25000/50000A


RCTi sensors are also compatible with our M550/M560 power transducers:

           

Specification summary

-- Available as single or three phase
-- Available sense coil lengths 300, 500 or 700mm
-- Isolated measurement output
-- 0-5V (7.07pk ) into 1kohm or 4-20mA outputs
-- 2kV insulation continuous (tested 4kV) / 10kV optional (tested 15kV)
-- <1% accuracy from 5%-150% of range
-- Bandwidth 0.6Hz to 1MHz
-- Operation to 150% FS 10.6Vpk
-- 12, 24, 48, 125Vdc or 110Vac, 220Vac power supply options, see *
-- Operating range -5°C to +65°C
-- Safety EN61010:2001
-- CE marked

<<< PDF data sheets available on request >>>
 

RCTi & RCTrms Current sensor order codes

RCTi / range / power supply / coil length mm
500/1000A range, 0-5V output with 12Vdc power and 300mm coil length = RCTi / 3 / D12 / 300

RCTrms / range / output / power supply / coil length mm
5000/10000A range, 0-5V output with 24Vdc power and 500mm coil length = RCTrms / 6 / 005 / D24 / 500

RCTi-3ph / range / power supply / coil length mm
5000A range, 0-5V output with 12-24Vdc power and 500mm coil length
= RCTi-3ph / 5 / D24 / 500

* to meet CE / UL safety requirements, an external power adapter is supplied for 125Vdc, 110Vac and 230Vac options