AC Powered Current Sensors

DC Current Transducer -- CTD
from Red Lion Controls, Inc.

DC Current Transducer, DC to 4 to 20 mA. Three Jumper Selectable DC Input Ranges, 50 A, 75 A and 100 A. Output is Magnetically Isolated from the Input. Internal Power Regulation. Split-core Case [See More]

  • Power Requirements: AC Powered; DC Powered
  • Technology: Hall-Effect
  • Current Type: DC Current
  • Current: 0.0 to 100
Load Sensor -- LSR-115 [LSR-115 from SymCom, Inc.]
from Littelfuse, Inc.

Load Sensor/115V/2-100A/20-turn pot [See More]

  • Power Requirements: AC Powered
  • Technology: Inductive
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
Broadband Current Probe -- Model BCP-610
from A.H. Systems Inc.

Conducted currents can be measured without making direct contact with the source conductor or metallic surface by means of clamp-on current probes. The BCP-610 Current Probe is designed to permit field intensity meters, spectrum analyzers, and other 50 ohm impedance instruments to measure... [See More]

  • Power Requirements: AC Powered
  • Current Type: AC Current
  • Loop Type: Closed Loop
  • Mounting / Configuration: Clamp or Bolt On
Load Sensor -- LSRU-115-AL-1.5 [LSRU-115-AL-1.5 from SymCom, Inc.]
from Littelfuse, Inc.

The Model LSRU load sensors use current levels to mon-itor all types of over and underload conditions such asfeed rates, tool wear, pump loads, mixer viscosity andothers. They may be used to stage pumps, chillers andother machinery. Two user adjustments are providedwith your choice of overcurrent,... [See More]

  • Power Requirements: AC Powered
  • Technology: Inductive
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
Broadband Current Probe -- Model BCP-614
from A.H. Systems Inc.

Conducted currents can be measured without making direct contact with the source conductor or metallic surface by means of clamp-on current probes. The BCP-614 Current Probe is designed to permit field intensity meters, spectrum analyzers, and other 50 ohm impedance instruments to measure... [See More]

  • Power Requirements: AC Powered
  • Current Type: AC Current
  • Loop Type: Closed Loop
  • Mounting / Configuration: Clamp or Bolt On
Self Powered Load Sensor -- LSR-0 [LSR-0 from SymCom, Inc.]
from Littelfuse, Inc.

Load Sensor/self-powered/15-135A [See More]

  • Power Requirements: AC Powered
  • Technology: Inductive
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
Broadband Current Probe -- Model BCP-620
from A.H. Systems Inc.

The BCP-620 broadband current probe is a toroidal transformer used to measure RF current without directly connecting to the electrical conductor or cable under test. The conductor passing through the aperature of the current probe acts as a single turn primary of the transformer. The secondary is... [See More]

  • Power Requirements: AC Powered
  • Current Type: AC Current
  • Loop Type: Closed Loop
  • Mounting / Configuration: Clamp or Bolt On
Self Powered Load Sensor -- LSRX [LSRX from SymCom, Inc.]
from Littelfuse, Inc.

SymCom's Model LSRX is a self-powered GO/NO GO AC current sensor designed to energize the output contact whenever 4.5 Amps or greater is present and de-energize the output when there is no current. The LSRX is commonly used as an AC current proof relay to indicate if a motor is operating or not. It... [See More]

  • Power Requirements: AC Powered
  • Technology: Inductive
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
Injection Current Probe -- Model ICP-621
from A.H. Systems Inc.

The ICP-621 injection current probe is used for specifications that require the injection of large frequency currents into cable bundles and individual wires. It can be used as an injection source as well as a sensitive monitoring probe. The ICP-621 has an input power rating of 100 watts CW for 30... [See More]

  • Power Requirements: AC Powered
  • Current Type: AC Current
  • Loop Type: Closed Loop
  • Mounting / Configuration: Clamp or Bolt On
Self Powered Load Sensor -- LSRX-C [LSRX-C from SymCom, Inc.]
from Littelfuse, Inc.

Load Sensor/self-powered/5-200A/depluggable term. [See More]

  • Power Requirements: AC Powered
  • Technology: Inductive
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
Injection Current Probe -- Model ICP-622
from A.H. Systems Inc.

Injection Current Probes are used to inductively couple large RF currents into conductors passing through their aperture. The conductors are signal, control and power circuits of equipment under test for conducted susceptibility or immunity. This injection current probe is used to couple large RF... [See More]

  • Power Requirements: AC Powered
  • Current Type: AC Current
  • Loop Type: Closed Loop
  • Mounting / Configuration: Clamp or Bolt On
Model CCM Mini Current Switch -- CCMF015
from Setra Systems

DESCRIPTION. The Mini Current Switch (Model CCM) is the industry ’s smallest split core current switch. It features an integrated mounting flange with DIN-rail capability offers increased installation convenience at no additional cost to the end user. The Model CCM is a cost effective solution... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: Clamp or Bolt On
  • Current Type: AC Current
  • Current: 0.1500 to 60
3-Phase Current Unbalance Detector -- Model 272-24
from Time Mark Corporation

The Model 272 3-Phase Current Unbalance Detector monitors 3-phase lines to detect an unbalanced current. It can also monitor three separate single phase lines for equal current levels. The percentage of unbalance is adjusted from 2% to 25% by adjusting a front panel control. An unbalance greater... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5
Industrial Current Sensors
from LEM USA, Inc.

LEM products fall broadly into multiple areas of application and are used within general industry, automotive industry, for railway and trackside applications, energy measurement relating to railway on-board applications, energy & automation, battery monitoring, and in Wi-LEM - wireless... [See More]

  • Power Requirements: AC Powered; DC Powered
  • Current Type: AC Current; DC Current
  • Loop Type: Open Loop; Closed Loop
  • Technology: Hall-Effect
DC Current Transducer -- M100-DS1
from Hoyt Electrical Instrument Works, Inc.

The M100-DS Series of summation transducers take up to four inputs and provide an outpir signal directly proportional to the sum of the inputs. A typical appliaction is the summation of total kW of four separate generating sets e.g. the four individual kW readings are provided by M100-WA4... [See More]

  • Power Requirements: AC Powered; DC Powered
  • Current Type: DC Current
  • Loop Type: Closed Loop
  • Mounting / Configuration: DIN Rail
AC Current Detector -- 870 Series
from American Aerospace Controls, Inc.

Heavy industrial; output spdt-relay (10A contacts); auto reset; adjustable (20% to 100%); power 115Vac; frequency 47-63Hz; temperature -20 ° to +71 °C; aperture 3/4 inch dia; metal case; barrier screw terminations [See More]

  • Power Requirements: AC Powered
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
Current Sensor -- CS
from Airotronics

The CS is an over or under current sensing control. Toroidal sensing means no break in the power wiring. The combination of the over current LED, current adjustment, and percentage trip adjustment provides easy and accurate setting. CS can handle loads up to 20 amps with time delays up to 100 secs. [See More]

  • Power Requirements: AC Powered; DC Powered
  • Current Type: AC Current; DC Current
  • Loop Type: Open Loop
  • Technology: Inductive
Current Sensors EACP Series -- EACP0420120SP
from Eaton Corporation - Sensors

The CurrentWatch EAC Series from Eaton ’s electrical business combines a current transformer and signal conditioner into a single package. The EAC Series has jumper-selected current input ranges and industry standard outputs: 4 – 20 mA, 0 – 5V DC or 0 – 10V DC. This family of... [See More]

  • Power Requirements: AC Powered
  • Current Type: AC Current
  • Loop Type: Open Loop
  • Mounting / Configuration: Panel Mount
AC Current Relays/Switches
from Ohio Semitronics, Inc.

OSI manufactures AC current switches that monitor load currents of devices such as fans, pumps and other critical items. We invite you to chat live with our application and product specialists to find or create a solution that works best for your application. [See More]

  • Power Requirements: AC Powered; Self-powered
  • Current Type: AC Current
  • Loop Type: Open Loop; Closed Loop
  • Mounting / Configuration: Panel Mount
Model CSC Series Current Swtich -- CSCGFN015NN
from Setra Systems

The CSC split core current swtich design is ideal for existing installations as it can easily be clamped onto existing power cable or wires. These units are offered with industry standard 135 Amp or 200 Amp output and very low fixed or adjustable setpoints. Setpoints can be adjusted for over or... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: Clamp or Bolt On
  • Current Type: AC Current
  • Current: 0.1500 to 200
3-Phase Over Current Monitor -- Model 2744-24
from Time Mark Corporation

The Model 2744 3-Phase Over Current Monitor is designed to monitor the current level of a three-phase line or to compare the currents of three single-phase lines. If one or more current inputs rises above the trip level after the start delay has expired, the internal relay will de-energize. An... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5
AC Current Detector -- 871 Series
from American Aerospace Controls, Inc.

Wide frequency; output spdt-relay (10A contacts); auto reset; adjustable (20% to 100%); power 115Vac; frequency 47-400Hz; temperature -20 ° to +71 °C; aperture 3/4 inch dia; metal case; barrier screw terminations [See More]

  • Power Requirements: AC Powered
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
Current Sensors EDC Series -- EDC205SP
from Eaton Corporation - Sensors

The CurrentWatch EDC Series from Eaton ’s electrical business combines a hall effect sensor and signal conditioner into a single package for use in DC current applications up to 300A. The EDC Series has jumper-selected current input ranges and industry standard outputs: 4 – 20 mA, 0... [See More]

  • Power Requirements: AC Powered; DC Powered
  • Current Type: AC Current; DC Current
  • Loop Type: Open Loop
  • Technology: Hall-Effect
AC Current Transducers – Absolute Average Measuring
from Ohio Semitronics, Inc.

OSI manufactures absolute average AC current transducers which provide an isolated DC analog output that is directly proportional to the current input. The output is derived from the average absolute value of the input waveform and calibrated in terms of the RMS value of an input sine wave. We... [See More]

  • Power Requirements: AC Powered; DC Powered; Self-powered
  • Mounting / Configuration: Clamp or Bolt On; Panel Mount; DIN Rail-Mount
  • Current Type: AC Current
  • Current: 0.0 to 2000
Model CSS Series Current Switch -- CSSGFN025NN
from Setra Systems

The CSS solid core current switch's convenient wide orifice allows easy pass through of the conductor, making it ideal for new installations. These units are solid state switches and have accurate very low fixed or user adjustable setpoints, and are ideal for direct drive units, small exhaust fans,... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: Clamp or Bolt On
  • Current Type: AC Current
  • Current: 0.2500 to 200
3-Phase Over/Under Current Monitor -- Model 2742-24
from Time Mark Corporation

The Model 2742 3-Phase Over/Under Current Monitor is designed to monitor the current level of a 3-phase line or to compare the currents of three single-phase lines. The Model 2742 is factory-set as an over-current monitor; that is, if one or more current inputs rises above the trip level, the... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5
AC Current Detector -- 881 Series
from American Aerospace Controls, Inc.

Industrial grade; output spdt-relay (2A contacts); automatic reset; adjustable trip point; power 115Vac; frequency 50-400Hz; temperature -20 ° to +70 °C; aperture 3/4 inch dia; plastic case; barrier screw terminations [See More]

  • Power Requirements: AC Powered
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
AC Current Transducers – RMS Measuring
from Ohio Semitronics, Inc.

OSI manufactures true RMS AC current transducers which provide accurate measurement of the true RMS value of input signals over a wide frequency range. We invite you to chat live with our application and product specialists to find or create a solution that works best for your application. [See More]

  • Power Requirements: AC Powered; DC Powered
  • Mounting / Configuration: Panel Mount; DIN Rail-Mount
  • Current Type: AC Current
  • Current: 0.0 to 40000
AC Current Monitor -- Model 173-5
from Time Mark Corporation

The Model 173 AC Current Monitor is a single set-point AC current monitor. It can be used to detect either over current or under current, depending on whether the set-point is set above or below the input current. An LED indicator illuminates whenever the current is above the set-point. Two... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 0.0 to 5
AC Current Detector -- 882 Series
from American Aerospace Controls, Inc.

Current controller: output spdt relay (2A contacts); auto reset; adjustable (20% to 100%); power 115Vac; frequency 50-400Hz; temperature -20 ° to +71 °C; aperture 3/4 inch dia; plastic case; barrier screw terminations [See More]

  • Power Requirements: AC Powered
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
AC Rogowski Coils
from Ohio Semitronics, Inc.

Operating on the Rogowski principle, OSI has a variety of flexible current sensors available in different sizes to fit your measurement needs. Additional sizes available by special order. We invite you to chat live with our application and product specialists to find or create a solution that works... [See More]

  • Power Requirements: AC Powered; DC Powered
  • Current Type: AC Current
  • Loop Type: Open Loop; Closed Loop
  • Mounting / Configuration: Panel Mount; DIN Rail-Mount
Automatic Reverse Controller -- Model 412
from Time Mark Corporation

The 412 Automatic Reverse Controller is a current sensor designed to detect jamming of sewage grinders and to initiate the reversing of the grinder. The controller allows the selection of up to five forward/reverse cycles, and provides for an alarm output, if the number of cycles is exceeded. The... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: Panel Mount
  • Current Type: AC Current
  • Current: 5 to 10
AC Power Transducer -- 415A Series
from American Aerospace Controls, Inc.

80-150Vac or 160-230Vac; output 0 to +5Vdc; accuracy 2%FS; response 400m-sec; powered by input; frequency 57-63Hz; temperature 0 ° to +50 °C; aperture 3/4 inch dia; metal case; barrier screw terminations [See More]

  • Power Requirements: AC Powered
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
DC/AC Current Transducers – Closed Loop Hall Effect
from Ohio Semitronics, Inc.

OSI manufactures current sensors that are closed loop, highly-precise, and designed for AC, DC, pulse, and variable-frequency drives. We invite you to chat live with our application and product specialists to find or create a solution that works best for your application. [See More]

  • Power Requirements: AC Powered; DC Powered
  • Current Type: AC Current; DC Current
  • Loop Type: Closed Loop
  • Technology: Hall-Effect
Current Unbalance Detector -- Model A2722
from Time Mark Corporation

The Model 2722 Current Unbalance Detector is designed to monitor 3-phase AC current (or compare three single-phase AC currents). A solid-state electronic sensing circuit drives an internal DPDT relay which energizes during normal, balanced conditions. An unbalanced condition will cause the relay to... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5
AC Power Transducer -- 416A Series
from American Aerospace Controls, Inc.

320-560Vac; output 0 to +5Vdc; accuracy 2%FS; response 400m-sec; powered by input; frequency 57-63Hz; temperature 0 ° to +50 °C; aperture 3/4 inch dia; metal case; barrier screw terminations [See More]

  • Power Requirements: AC Powered
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
DC/AC Current Transducers – Open Loop Hall Effect
from Ohio Semitronics, Inc.

OSI manufactures current sensors that are open loop, highly-precise, and designed for AC, DC, pulse, and variable-frequency drives. We invite you to chat live with our application and product specialists to find or create a solution that works best for your application. [See More]

  • Power Requirements: AC Powered; DC Powered
  • Current Type: AC Current; DC Current
  • Loop Type: Open Loop
  • Technology: Hall-Effect
DC Current Monitor -- Model 279B-24
from Time Mark Corporation

The Model 279 DC Current Monitor is a single set-point DC current monitor. It can sense either 1-10 Amps DC (24VAC or 120VAC) or 0.1-1 Amps DC (120VAC). The units have an input frequency of 50/60 Hz. The standard version, the 279B, has a screwdriver adjustable trip and hysteresis setting on top of... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: 8-Pin Socket
  • Current Type: DC Current
  • Current: 0.0 to 15
AC Power Transducer -- S217
from American Aerospace Controls, Inc.

160-300Vac & 320-480Vac; output 0 to +5Vdc; accuracy 2%FS; response 400m-sec; powered by input; frequency 57-63Hz; temperature 0 ° to +50 °C; aperture 3/4 inch dia; metal case; barrier screw terminations [See More]

  • Power Requirements: AC Powered
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
Motor Load Monitor -- Model 421
from Time Mark Corporation

The Model 421 detects an overload or under-load condition on all types of running motors; conveyor motors, elevator motors, mixer motors, submersible pumps, suction pumps, etc. The monitor detects the actual power used (voltage x current x power factor) and is more sensitive than simple current... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 0.0 to 5
AC Power Transducer -- S73 Series
from American Aerospace Controls, Inc.

0-115Vac or 0-230Vac; output 0 to +5Vdc; accuracy 2%FS; response 400m-sec; power 120Vac; frequency 57-63Hz; temperature 0 ° to +50 °C; aperture 3/4 inch dia; metal case; barrier screw terminations [See More]

  • Power Requirements: AC Powered
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
Single Phase Current Monitor -- Model 273-5-24
from Time Mark Corporation

The Model 273 Single Phase Current Monitor is a single set-point sensor. It can be used as either an over current or under current sensor, depending on the contacts used. This device can directly monitor AC currents in the range of 0.5 to 5 amps: or 2 to 10 amps, 50 to 400 Hz. Matching transformers... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: 8-Pin Socket
  • Current Type: AC Current
  • Current: 0.5000 to 5
AC Power Transducer -- W & Q Series
from American Aerospace Controls, Inc.

Utility grade; 1f and 3f watt & var transducers; frequency 60Hz (50 & 400Hz available); output 0 to ±1mAdc ( ±5V & ±10Vdc available); accuracy 0.25%FS; response 400m-sec; powered by input; temperature –20 ° to +70 °C [See More]

  • Power Requirements: AC Powered
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
Single Phase Current Monitor -- Model 275
from Time Mark Corporation

The Model 275 Single Phase Current Monitor is designed for monitoring alternating current in the range of 1-5 amps, at 50 to 400 Hz. The Model 275 provides a contact transfer when the set current level is exceeded for a period longer than the time delay. The OVER-CURRENT indicator illuminates... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: Panel Mount
  • Current Type: AC Current
  • Current: 1 to 5
Single Phase Current Monitor -- Model A2732
from Time Mark Corporation

The Model 2732 Single Phase Current Monitor is designed to continuously monitor single-phase AC current. It consists of a solid-state sensing circuit driving an internal electromechanical relay. The Model 2732 has two operating modes: over-current sensing or under-current sensing. The operating mode... [See More]

  • Power Requirements: AC Powered
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5