High Performance Current Sensing for Automation Applications
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Current Sensing Switches

Our Wide Range of AC or DC Current Sensing Switches Guarantees You’ll Find Exactly What You Need.

To assist in guiding you to the right series for your application please begin your selection here!

DC CURRENT SENSING SWITCH SELECTION

DC Loads, Go-No-Go

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DS1 SERIESTrips at 0.75, max. 1000 A for 5 secs. or 500 ADC ContinuousSolid-State Contact10–28 VDC0.55″ dia.DS1 DC Current Sensing Switch

DC LOADS, ADJUSTABLE TRIP POINT

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DS3 SERIES2–20 A, 10–50 A and 20–100 A, Jumper SelectableSPDT Relay or Solid-State Contact
(depending on model)
24 VAC/DC or 12 VAC/DC
(depending on model)
0.75″ dia.DS3 Series DC Current Sensor
DS1-FD SERIES20–400 ADC, 17–338 AACSPDT Relay, Auto-Reset or Latching24 VAC/DC1.31" dia.DS3 Series DC Current Sensor

AC CURRENT SENSING SWITCH SELECTION

PLC or DCS Input

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AS1 SERIES1–150 A Adjustable; 1.75–150 A Adjustable (depending on model)Magnetically Isolated Solid-State Switch, 150 mA Max. AC/DC LoadSelf Powered0.55″ dia., 0.74″ dia., 0.85″ sq. (depending on model)AS1 CURRENT SENSING SWITCH
AS1 COMPACT SERIES0.5 A Trip PointSolid-State Contact, 150 mA Max. AC/DC LoadSelf Powered0.31″ dia.
AS3, AADC or CCDC SERIES1–6 A, 6–40 A & 40–175 A or 1.75–6 A, 6–40 A & 40–200 A (depending on model)Isolated Solid-State Relay, 150 mA Max.Self Powered0.55″ dia., 0.74″ dia., 0.85″ sq. (depending on model)AS3 Current Sensing Switch
ASC SERIES2–150 A, 3–150 A (factory set)Magnetically Isolated Solid-State SwitchSelf Powered0.74″ dia., 0.85″ sq. (depending on model)ASC Current Operated Switch
ASL SERIES1–10 A, 2–20 A, 10–50 A, 20–50 A, 50–100 A, 100–150 A (depending on model)Magnetically Isolated Solid-State Relay, 150 mA MaxSelf Powered0.55″ dia., 0.85″ sq. (depending on model)ASL AC Current Sensor
ASM SERIES1.5–150 A or 2.8–150 A (depending on model)Magnetically Isolated Solid-State Relay, 150 mA MaxSelf Powered0.74″ dia., 0.85″ sq. (depending on model)ASM Series AC Current Sensor

Relay or Contactor Control

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AS1 NOR-FT-GO SERIESGo/No-Go Fixed Trip PointElectromechanical Relay, 5.0 A Max.Self Powered0.74″ dia.AS1 NOR-FT-GO CURRENT SENSING SWITCH
AS3 SERIES1–6 A, 6–40 A & 40–175 A or 1.75–6 A, 6–40 A & 40–200 A (depending on model)Isolated Solid-State Relay, 1.0 A, 3.0 A or 15 A MaxSelf Powered0.55″ dia., 0.74″ dia., 0.85″ sq. (depending on model)AS3 Current Sensing Switch
ASD SERIES1–50 A or 4–200 A Switch Adjustment (depending on model)Isolated Solid-State Relay, 1.0 A Max24 VDC or 24 VAC0.74″ dia.ASD Curren Sensing Switch

Very Low AC Current Detection

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AS0 SERIES3–15 mA or 15–350 mA Field AdjustableIsolated Solid-State Relay20% +/- of Nominal Voltage of 120 VAC or 24 VAC/DC0.75″ dia.AS0 Series AC Current Sensor

Adjustable Delay on Current Rise

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ASX SERIES1.5–12 A, 12–55 A, 50–200 A, Jumper SelectableIsolated Solid-State RelaySelf Powered0.75″ dia., 0.85″ sq. (depending on model)ASX Series AC Current Sensor

Inrush Delay Plus Adjustable Delay on Current Rise

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ASXP SERIES1–20 A, 20–50 A, 50–80 A (depending on model)Electromechanical SPDT Relay24 VAC/DC or 120 VAC (depending on model)0.75″ dia.ASXP Series AC Current Sensor
ASXP-MS SERIES50–200 A, 100–400 A, 150–600 A, 200–800 A (depending on model)Electromechanical SPDT Relay24 VAC/DC or 120 VAC (depending on model)1.19″ x 2.22″ASXP-MS Current Sensing Switch
ASXP-LS SERIES200–800 A, 400–1000 A, 600–1200 A, 1000–1600 A (depending on model)Electromechanical SPDT Relay24 VAC/DC or 120 VAC (depending on model)2.3″ x 3.42″ASXP-LS Current Sensing Relay

Analog Output Plus Limit Alarm Contact

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ATS SERIES - DIGITAL SETPOINTSwitch Adjustment 1–50 A or 2–200 A (depending on model)Isolated Solid-State Relay, 1.0 A Max Plus 4–20 mA, 0–5 VDC or 0–10 VDC18–30 VAC/DC0.74" dia.ATS Series Current Sensing Transducer/Switch with Digital Display Setpoint
ATS SERIES - SWITCH SETPOINTSwitch Selectable 10–1200 AElectromechanical SPDT Relay, Plus 4-20 mA120 VAC or 24 VDC1.875" dia.ATS Current Sensing Rotary Switch

Dual Setpoint, Dual SPDT Relay Outputs

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ASP SERIES1-400 A, Six Ranges Available2-SPDT Relays24 VAC or DC <2 VA Consumption1.31" (33.3 mm)ASP-FD AC Current Switch
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