Switch Current Sensors

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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5
Current Sensors and Current Transducers
from Johnson Controls, Inc.

Our Current Sensors and Current Transducers are perfect for monitoring current loads on pumps, driving fans, blowers, heating coils and more. At Johnson Controls, we design each Current Sensor and Current Transducer to operate non-intrusively and detect the currents flowing through cables and wires. [See More]

  • Electrical Output: Voltage (optional feature); Outputs an analog current signal (optional feature); "Output" is a switch or alarm signal
  • Mounting / Configuration: Clamp or Bolt On
  • Current Type: AC Current
CurrentWatch™ ECS Series -- ECSNOASC
from Eaton Corporation - Sensors

The CurrentWatch ECS Series from Eaton ’s electrical business is a family of solid-state adjustable current switches, ideal for providing status information on electrical equipment. The ECS is excellent for new installations, where the conductors run through the housing, requiring no cutting. [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Current Type: AC Current
  • Loop Type: Open Loop
  • Mounting / Configuration: Panel Mount; 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]

  • Electrical Output: "Output" is a switch or alarm signal
  • 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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Current Type: AC Current; DC Current
  • Loop Type: Open Loop
  • Technology: Inductive
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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: Clamp or Bolt On
  • Current Type: AC Current
  • Current: 0.1500 to 60
3-Phase Over Current Monitor -- Model 274-5-120-A
from Time Mark Corporation

The Model 274 3-Phase Current Monitor is designed to monitor all legs of a 3-phase line, and can also be used to monitor three individual single-phase lines. The output relay will energize on an over-current condition on any one of the 3 monitored lines. Two indicator lamps are provided to show when... [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5
CurrentWatch™ ECS7 Series -- ECS701SC
from Eaton Corporation - Sensors

The CurrentWatch ECS7 Series load monitoring switches from Eaton ’s electrical business are designed for overload, underload or operating window applications. Upon sensing an average operating current, the ECS7 Series self-learns and establishes a limit-alarm trip point based on ± 15%... [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Current Type: AC Current
  • Loop Type: Open Loop
  • Mounting / Configuration: Clamp or Bolt On; DIN Rail
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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
High Range Current Sensor -- HCS
from Airotronics

The HCS is a high-range current sensor with sense capabilities from 8 to 60 amps AC. The set point is either factory fixed or adjustable. HCS is completely self-powered with solid state DC switching to interface with a Programmable Logic Control (PLC) or control relays. [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Current Type: AC Current
  • Loop Type: Open Loop
  • Technology: Inductive
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]

  • Electrical Output: "Output" is a switch or alarm signal
  • 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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5
CurrentWatch™ ECSJ Series -- ECSJ400SC
from Eaton Corporation - Sensors

The CurrentWatch ECSJ Series current operated switches from Eaton ’s electrical business provide the same dependable indication of status offered by the CurrentWatch ECS Series, but with the added benefit of increased setpoint precision. A choice of three, jumper-selectable input ranges allows... [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Current Type: AC Current
  • Loop Type: Open Loop
  • Mounting / Configuration: Panel Mount; DIN Rail
AC Current Detector -- 880B Series
from American Aerospace Controls, Inc.

Industrial grade; output solid state switch; automatic reset; powered by input; adjustable trip point; frequency 50-400Hz; temperature -20 ° to +70 °C; aperture 3/4 inch dia; plastic case; barrier screw terminations [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
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]

  • Electrical Output: "Output" is a switch or alarm signal
  • 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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5
CurrentWatch™ ECSTD Series -- ECSTD401SC
from Eaton Corporation - Sensors

The CurrentWatch ECSTD Series from Eaton ’s electrical business is a family of high performance current operated switches with field adjustable time delay to help minimize nuisance trips during start-up and operation. Designed for motor status applications where setpoint accuracy and... [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Current Type: AC Current
  • Loop Type: Open Loop
  • Mounting / Configuration: Panel Mount; DIN Rail
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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
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]

  • Electrical Output: "Output" is a switch or alarm signal
  • 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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel Mount
AC Current Monitor -- Model 1732
from Time Mark Corporation

The Model 1732 AC Current Monitor is a single set-point current monitor. It can be used to detect either over current or under current, depending on whether the trip point is set above or below the input current. Dual LED indicators on the front or top of the unit give a clear visual reference for a... [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 25 to 150
AC Current Detector -- S212 Series
from American Aerospace Controls, Inc.

Aircraft do-160; output spdt-relay; automatic reset; power +24 to +32Vdc; response 200m-sec; temperature -55 ° to +70 °C; aperture 3/8 inch dia; metal case; connector terminations; do-160 environmental requirements [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: AC Current
  • Mounting / Configuration: Panel 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]

  • Electrical Output: Outputs an analog current signal; "Output" is a switch or alarm signal
  • Mounting / Configuration: Panel Mount
  • Current Type: AC Current
  • Current: 5 to 10
AC Current Detector -- S979 Series
from American Aerospace Controls, Inc.

Features. RTCA DO-160E compliant; See outline drawing for Section & Category. Frequency range 360 Hz to 650 Hz. Output SPST-Relay with 1 amp contact rating. Automatic reset. 28 VDC nominal supply. Custom units available [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Inductive
  • Current Type: AC Current
  • Mounting / Configuration: Clamp or Bolt On
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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5
DC Current Detector -- 901B Series
from American Aerospace Controls, Inc.

Ground fault; output solid-state-switch and 0 to 5Vdc; accuracy 1%FS; power +21 to +27Vdc; response 50m-sec; temperature -20 ° to +70 °C; aperture 3/4 inch dia; metal case; solder, connector or barrier terminations [See More]

  • Electrical Output: Voltage; "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: DC Current
  • Mounting / Configuration: Panel Mount
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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: 8-Pin Socket
  • Current Type: DC Current
  • Current: 0.0 to 15
DC Current Detector -- S201 Series
from American Aerospace Controls, Inc.

Aircraft do-160; output spst relay; automatic reset; power +24 to +32Vdc; response 200m-sec; temp. -55 ° to +70 °C; aperture 3/8 inch dia; metal case; connector terminations; DO-160 environmental requirements [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: DC 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]

  • Electrical Output: Outputs an analog current signal; "Output" is a switch or alarm signal
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 0.0 to 5
DC Current Detector -- S204 Series
from American Aerospace Controls, Inc.

Industrial grade; output spdt relay; accuracy 4% of set point; power +22.8 to +30.4Vdc; response 3m-sec; temp. -20 ° to +70 °C; aperture 3/8 inch dia; metal case; solder, connector or barrier terminations [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: DC 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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: 8-Pin Socket
  • Current Type: AC Current
  • Current: 0.5000 to 5
DC Current Detector -- S58 Series
from American Aerospace Controls, Inc.

Industrial grade; output solid-state-switch; automatic reset; power +22.8 to +30.4Vdc; response 1m-sec; temperature 0 ° to +70 °C; aperture 3/8 inch dia; metal case; barrier screw terminations [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: DC 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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: Panel Mount
  • Current Type: AC Current
  • Current: 1 to 5
DC Current Detector -- S623 Series
from American Aerospace Controls, Inc.

Rail transit ground fault; output spst relay; automatic reset; response 50m-sec; power +25 to +45Vdc; temp -25 ° to +75 °C; aperture 1+1/2 inch dia; dual bus-bar available; plastic case; barrier screw terminations [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: DC Current
  • Mounting / Configuration: Panel Mount
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]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: SMD
  • Current Type: AC Current
  • Current: 1 to 5
DC Current Detector -- S629 Series
from American Aerospace Controls, Inc.

Rail transit; output spst relay (10A contacts); automatic reset; response 50m-sec; temp -25 ° to +75 °C; power +25 to +45Vdc; aperture 1+1/2 inch dia; bus-bar available; plastic case; barrier screw terminations [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: DC Current
  • Mounting / Configuration: Panel Mount
True RMS Current Monitor -- Model 27
from Time Mark Corporation

Model 27 True RMS Current Monitor has a display that shows the current with an accuracy of +/- 0.5%. The display is updated every second and re-initialized every 30 seconds. Model 27 has a rotary encoder with switch on the unit. By pressing the encoder switch for more than 5 seconds, the unit will... [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Mounting / Configuration: Panel Mount
  • Current Type: AC Current
  • Current: 0.5000 to 1200
DC Current Detector -- S680 Series
from American Aerospace Controls, Inc.

Rail transit; output solid-state-relay; automatic reset; power +25 to +45Vdc; response 1m-sec; temperature -25 ° to +75 °C; aperture 1+1/2 inch dia; available with bus-bar; plastic case; barrier screw terminations [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: DC Current
  • Mounting / Configuration: Panel Mount
DC Current Detector -- S754 Series
from American Aerospace Controls, Inc.

Rail transit; output solid-state-relay; pushbutton reset; response 100m-sec; power +25 to +45Vdc; temperature -40 ° to +50 °C; aperture 3/4 inch dia; plastic case; barrier screw terminations [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Hall-Effect (optional feature)
  • Current Type: DC Current
  • Mounting / Configuration: Panel Mount
DC Current Detectors -- S963 Series
from American Aerospace Controls, Inc.

Features. RTCA DO-160E compliant; See outline drawing for Section & Category. Output SPST-Relay with 1 amp contact rating. Automatic reset. 28 VDC nominal supply. Custom units available [See More]

  • Electrical Output: "Output" is a switch or alarm signal
  • Technology: Inductive
  • Current Type: DC Current
  • Mounting / Configuration: Clamp or Bolt On