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Current and voltage sensors provide a cost-effective, easy-to-install solution for monitoring, logging, and proof-of-operation. They deliver discrete or analog output signals compatible with most PLCs, dataloggers, and SCADA systems, ensuring reliable integration across a wide range of applications.
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Current & Voltage Sensors (AC & DC)
Current and voltage sensors provide a simple and cost-effective method to monitor electrical system performance and efficiency. Real-time current and voltage sensing make it possible to predict component failures, schedule preventative maintenance, and minimize downtime.
For part listing and specifications, go to Shop Now
1-Phase AC Current Transducers
1-phase AC current transducers offer sensing ranges up to 2000A and are available in a variety of sensing technologies such as linear for sinusoidal AC loads, True RMS for distorted AC waveforms, and adaptive True RMS for burst-fired SCR controllers that provide power in one cycle increments.
3-Phase AC Current Transducers
3-phase AC current transducers offer selectable sensing ranges up to 200A with averaging responding or True RMS output. Three sensing apertures with corresponding analog outputs eliminate the need for separate transducers; a fourth output supplies the average of the three phases.
DC Current Transducers
DC current transducers combine a Hall effect sensor and signal conditioner for DC current applications up to 750A. These current transducers have jumper-selectable current input ranges, 4-20 mA or +/-10 VDC outputs, and are compatible with most PLCs, data loggers, and SCADA systems.
AC Current Switches
AC current switches offer fixed or adjustable trip points, sensing ranges up to 400A, fixed- or split-core mounting styles, and a variety of features such as a digital setpoint display, solid-state outputs, or field-adjustable time delayed outputs to minimize nuisance trips.
DC Current Switches
DC current switches combine a Hall effect sensor, signal conditioner, and limit alarm into a single package for monitoring applications up to 100A. These switches offer user-selectable current input ranges, a choice of N.O. solid-state or SPDT relay outputs, and removable terminal blocks.
AC Current Indicator
This current indicator is a small LED ring that slides over a conductor to give a flashing indication of current flow. Ideal for use in control panels, it provides a cost-effective way to detect current flow to fans, heaters, pumps, lighting, or other powered devices.
Current Transducer & Switch Combination
AC current transducer/switch units combine a current transformer and signal conditioner in one unit, with both an analog output for monitoring and a solid-state output for a limit alarm. These units come with adjustable trip points up to 200A and include an LED setpoint display.
Current Transformers
Newest Additions!
- Sifam Tinsley solid core AC current transformers
Current transformers provide a compact, cost-effective means for accurately measuring primary current, generating an output proportional to the current flowing through the sensing window. They are ideal for connecting to panel meters, data loggers, or chart recorders for monitoring purposes.
DC Current Shunts
New!
DC current shunts allow accurate measurement of high DC currents. They provide a low-resistance current path through a precision resistor that produces a small, proportional voltage drop, which an ammeter (connected in parallel) measures to provide the total current flowing through the circuit.
Voltage Transducers
Voltage transducers monitor AC and DC systems, supporting control, diagnostics, and remote data logging applications. They provide fully isolated 4-20mA outputs proportional to the detected voltage. True RMS models measure non-sinusoidal waveforms and ensure precise sensing in noisy environments.
3-Phase AC Voltage Transducers
New!
Three-phase AC voltage transducers measure each leg, providing analog outputs for the individual phases and a fourth for the average voltage. Models support Delta or Wye configurations, feature True RMS sensing, and deliver reliable performance in noisy environments or with non-sinusoidal waveforms.
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