Current Sensors




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Past, future, and current excellence. Honeywell offers a wide variety of current sensors to monitor alternating (ac) or direct (dc) current. From digital output detectors sensing a few hundred milliamps to linear sensors monitoring over one thousand amps, our comprehensive line provides superior performance at a reduced cost.

    As well as the advantages you'd expect from an experienced provider:

  • Decades of engineering expertise.
  • Thru-hole design.
  • Fast response times.
  • Output voltage isolation from input.
  • Minimum energy dissipation.
  • Enhanced reliability with adjustable performance and built-in temperature compensation.




DIGITAL/INDUCTIVE CURRENT SENSORS:


    CSDA Series Benefits:


    Single digital (TTL logic level, open collector) output that will sink 20 mA of output current. Provides logic level output that changes from Vcc to 0.4 V when sensed current exceeds the operate point. Will not be damaged by overcurrent in the sensed conductor. Potential applications include variable speed drives, overcurrent protection, ground fault detectors, current feedback control systems, robotics, UPS and telecommunication power supplies, welding power supplies, battery management systems, and wattmeters.

  1. CSDA Series - Features:
    1. Open collector output, Digital output, ac or dc currents, Thru-hole design,
    2. Output voltage isolation from input, Minimum energy dissipation,
    3. Maximum current limited only by conductor size,
    4. Enhanced accuracy, lowcost sensing, RoHS compliant.




  2. Common Sense Global leadership:


    Honeywell S&C offers linear (analog) open loop, digital, or closed-loop current sensors. When any of these sensors detect predetermined signals, the system then performs the designated task. For instance, the digital signal’s logic level output may sound an alarm, start a motor, or open a valve. The linear signal duplicates the waveform often ideal for feedback elements to control a motor, or regulate machine function. And Honeywell’s new closed-loop current sensor with magnetoresistive (MR) technology offers amazing offset drift performance over a wide temperature range with almost no thermal drift, for enhanced accuracy. For proven engineering expertise, component dependability, and global support, trust Honeywell S&C.





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Digital/Inductive Current Sensors CSDA Series
Operate current 0.5 A.t. nom., 3.5 A.t. nom.
Sensed current type ac or dc
Output voltage
Response time 100 µs
Accuracy better than 0.5 %
Mounting PCB mounting pins or screw mount
Pinout style 3-pin PCB or 3-pin AMP connector
Operating temperature -25 °C to 85 °C [-13 °F to 185 °F]
Supply voltage 6 Vdc to 16 Vdc





    CLOSED LOOP CURRENT SENSORS:


    CSNX, CSNA, CSNF, CSNB, CSNC, CSNE, CSNG, CSNJ, CSNK, CSNL, CSNM, CSNP, CSNS, CSNR, and CSNT Series Benefits:


    Based on the principles of the magnetoresistive or Hall effects, and the null balance or zero magnetic flux method (feedback system). Magnetic flux in the sensor core is constantly controlled at zero. Potential applications include variable speed drives, overcurrent protection, ground fault detectors, current feedback control systems, robotics, UPS and telecommunication power supplies, welding power supplies, battery management systems, and wattmeters.

  1. CSNX, CSNA, CSNF, CSNB, CSNC, CSNE, CSNG, CSNJ, CSNK, CSNL, CSNM, CSNP, CSNS, CSNR, and CSNT Series - Features:
    1. Current sensing up to 1275 A, ac, dc, and impulse currents, In-line or thru-hole design,
    2. Competitive cost/ performance ratio, Rapid response, Reduced overshoot,
    3. High overload capability, High level of electrical isolation between primary and secondary circuits,
    4. Industrial operating temperature range, Small size and weight, RoHS compliant, CE, UL approvals.





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Closed Loop Current Sensors CSNX Series CSNA Series CSNF Series
Sensed current range ±56 A ±70 A, ±90 A, ±100 A ±150 A, ±180 A, ±200 A
Sensed current type ac, dc, impulse ac, dc, impulse ac, dc, impulse
Output current current current
Coil turns 2000 (50 Ohm coil) 1000 (90 or 50 Ohm coil)
2000 (160 or 130 Ohm coil)
1000 (30 Ohm coil)
2000 (100 Ohm coil)
Response time < 0.2 µs < 1 µs < 0.5 µs
Accuracy ±0.24 % ±0.5 % ±0.5 %
Mounting PCB on 11-pins PCB on 3-pins PCB on 3-pins
Pinout style unipolar offset center
Operating temperature -40 °C to 85 °C [-40 °F to 185 °F] 0 °C to 70 °C [32 °F to 158 °F] -40 °C to 85 °C [-40 °F to 185 °F]
Supply voltage 4.75 Vdc to 5.25 Vdc ±13 Vdc, ±15 Vdc ±12 Vdc to ±15 Vdc





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Closed Loop Current Sensors CSNB Series CSNC Series CSNE Series
Sensed current range ±100 A ±90 A ±36 A, ±90 A
Sensed current type ac, dc ac, dc ac, dc, impulse
Output current current current
Coil turns 2000 1000 (50 Ohm coil) 1000 (110 Ohm or 66 Ohm coil)
Response time < 1 µs < 1 µs < 1 µs
Accuracy ±0.5 % ±0.5 % ±0.5 %
Mounting PCB on 3 pins PCB on 3-pins PCB on 3-pins
Pinout style Offset offset 5-pin
Operating temperature 0 °C to 70 °C [32 °F to 158 °F] -25 °C to 85 °C [-13 °F to 185 °F] 0 °C to 70 °C [32 °F to 158 °F]
Supply voltage ±15.0 Vdc ±13.0 Vdc ±12 Vdc to ±15 Vdc





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Closed Loop Current Sensors CSNG Series CSNJ Series CSNK Series
Sensed current range ±180 A, ±200 A ±600 A ±1200 A
Sensed current type ac, dc ac, dc, impulse ac, dc, impulse
Output current current current
Coil turns 2000 2000 5000 (50 Ohm coil)
Response time < 0.5 µs < 0.5 µs < 1 µs
Accuracy ±0.5 % ±0.5 % ±0.5 %
Mounting PCB on 3 pins panel panel
Pinout style offset spade terminals (x 3) Molex (3-way)
Operating temperature -40 °C to 85 °C [-40 °F to 185 °F] -40 °C to 85 °C [-40 °F to 185 °F] -40 °C to 85 °C [-40 °F to 185 °F]
Supply voltage ±15.0 Vdc ±12.0 Vdc to ±18.0 Vdc ±15 Vdc to ±18 Vdc




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Closed Loop Current Sensors CSNL Series CSNM Series CSNP Series
Sensed current range ±600 A ±1000 A ±90 A
Sensed current type ac, dc ac, dc ac, dc
Output current current current
Coil turns 2000 3000 1000
Response time < 0.5 µs < 1 µs < 0.5 µs
Accuracy ±0.5 % ±0.5 % ±0.5 %
Mounting panel panel PCB on 3 pins
Pinout style Molex (3-way) Molex (3-way) offset
Operating temperature -40 °C to 85 °C [-40 °F to 185 °F] -40 °C to 85 °C [-40 °F to 185 °F] -40 °C to 85 °C [-40 °F to 185 °F]
Supply voltage ±12.0 Vdc to ±18.0 Vdc ±12.0 Vdc to ±18.0 Vdc ±12.0 Vdc to ±15.0 Vdc




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Closed Loop Current Sensors CSNS Series CSNR Series CSNT Series
Sensed current range ±320 A, ±600 A ±200 A ±150 A
Sensed current type ac, dc, impulse ac, dc ac, dc
Output current current current
Coil turns 2000 1000, 2000 2000
Response time < 0.5 µs < 0.5 µs < 0.5 µs
Accuracy ±0.5 % ±0.5 % ±0.5 %
Mounting panel PCB on 3 pins PCB on 3 pins
Pinout style Molex (3-way) center, offset offset
Operating temperature -40 °C to 85 °C [-40 °F to 185 °F] -40 °C to 85 °C [-40 °F to 185 °F] -40 °C to 85 °C [-40 °F to 185 °F]
Supply voltage ±12 Vdc to ±18 Vdc ±12.0 Vdc to ±15.0 Vdc ±12.0 Vdc to ±15.0 Vdc





    OPEN LOOP CURRENT SENSORS:


    CSCA-A Series Benefits:


    Based on the principles of the Hall-effect wherein a Hall-effect device (HED) produces an output voltage linearly related to the amplitude and phase of a magnetic field applied to it. HED output is directly proportional to the amplitude and phase of the primary current. Potential applications include variable speed drives, overcurrent protection, ground fault detectors, current feedback control systems, robotics, UPS and telecommunication power supplies, welding power supplies, battery management systems, and wattmeters.

  1. CSCA-A Series - Features:
    1. Ac, Dc, and impulse currents, Competitive cost/performance ratio,
    2. Low power consumption, Compact size,
    3. High level of electrical isolation between primary and secondary circuits,
    4. Large primary aperture, RoHS compliant, CE, UL approvals.




  2. CSLA Series Benefits:


    Incorporates Honeywell’s 91SS12-2 and SS94A1 linear output Halleffect transducter (LOHET™). Sensing element is assembled in a printed circuit board mountable housing, available in four configurations. Potential applications include variable speed drives, overcurrent protection, ground fault detectors, current feedback control systems, robotics, UPS and telecommunication power supplies, welding power supplies, battery management systems, and wattmeters.

  3. CSLA Series - Features:
    1. Linear output, ac or dc currents, Thru-hole design, Enhanced response time,
    2. Output voltage isolation from input, Minimum energy dissipation,
    3. Maximum current limited only by conductor size,
    4. Adjustable performance and built-in temperature compensation assures reliable operation,
    5. Enhanced accuracy, low-cost sensing, RoHS compliant.




  4. CSLH Series Benefits:


    Open-loop sensor incorporates Honeywell’s SS490 Series miniature ratiometric linear Hall-effect sensor. Element is encapsulated in a PCB mountable plastic package. Combination of sensor, flux collector, and housing comprises the current sensor assembly. Potential applications include motor control, HVAC and consumer tools, current monitoring of electronic circuits, overcurrent protection, ground fault detectors, robotics, industrial process control, UPS and telecommunication power supplies, welding current monitoring, battery management systems in mobile equipment, watt meters, and variable speed drives.

  5. CSLH Series - Features:
    1. Ac or Dc currents, Miniature, Linear ratiometric output,
    2. Current sinking or sourcing output for interfacing flexibility,
    3. No insertion loss, Enhanced response time, Low-cost sensing,
    4. Minimum energy dissipation, Maximum current limited only by conductor size,
    5. Built-in temperature compensation promotes reliable operation, RoHs compliant.





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Open Loop Current Sensors CSCA-A Series CSLA Series CSLH Series
Sensed current range ±150 A, ±300 A ±600 A, ±900 A ±57 A to ±950 A ±9 A, ±45 A
Sensed current type ac, dc, impulse ac, dc ac, dc
Output voltage voltage sink/source
Response time 3 µs to 7 µs 3 µs, 8 µs 3 µs
Sensitivity various 18.5 mV N* ±3.5 mV N* @ 5 Vdc or 282 mV N* -42, +82 mV N* @ 10 Vdc
Mounting Molex connector Gallant connector PCB on 3-pins PCB on 3-pins
Pinout style 3-pin 3-pin
Operating temperature -10 °C to 80 °C [14 °F to 176 °F] -25 °C to 85 °C [-13 °F to 185 °F] -25 °C to 85 °C [-13 °F to 185 °F]
Supply voltage ±15 Vdc ±5 % 8 Vdc to 16 Vdc
6 Vdc to 12 Vdc
4.5 Vdc to 10.5 Vdc





    CSLS, CSLT, CSLW Series Benefits:


    Incorporate Honeywell’s SS490 Series miniature ratiometric linear Halleffect sensor. Element is encapsulated in a printed circuit board-mountable plastic package. Sensors are ratiometric. Potential applications include motor control in HVAC and consumer tools, current monitoring of electronic circuits, overcurrent protection, ground fault detectors, robotics, industrial process control, UPS and telecommunication power supplies, welding current monitoring, battery management systems in mobile equipment, watt meters, and variable speed drives.

  1. CSLS, CSLT, CSLW Series - Features:
    1. Ac or Dc currents, Linear ratiometric output, Current sinking or sourcing output for interfacing flexibility,
    2. No insertion loss, Enhanced response time, Compact size for applications with limited space,
    3. Enhanced accuracy, low-cost sensing, Minimum energy dissipation,
    4. Maximum current limited only by conductor size,
    5. Built-in temperature compensation promotes reliable operation, RoHs compliant.





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Open Loop Current Sensors CSLS Series CSLT Series CSLW Series
Sensed current range ±60 A ±100 A ±1 A, ±5 A, ±40 mA, ±200 mA
Sensed current type ac, dc ac, dc ac, dc
Output sink/source sink/source sink/source
Coil turns 12, 60, 300, 1500
Response time 3 µs 3 µs 3 µs
Sensitivity 15 mV/AT ±2 mV/AT @ 5 Vdc 15 mV/AT ±2 mV/AT @ 5 Vdc various
Mounting PCB PCB PCB
Pinout style 3-pin 3-pin 5-pin
Operating temperature -25 °C to 100 °C [-13 °F to 212 °F] -25 °C to 100 °C [-13 °F to 212 °F] -25 °C to 100 °C [-13 °F to 212 °F]
Supply voltage 4.5 Vdc to 10.5 Vdc 4.5 Vdc to 10.5 Vdc 4.5 Vdc to 10.5 Vdc



Current Sensors