current sensors

Whether you are an electrical contractor, HVAC technician or a maintenance professional, you need reliable current switches to ensure your system's performance and safety. But finding the professional-grade solution that performs from a traditional local supplier can mean costly delays and unnecessary downtime. Keep your operations going with high-performance components from Blackhawk Supply. We have a comprehensive inventory of industrial-grade current switches available to order.

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Macromatic COH50A2FF Overcurrent only | 240V AC | 10A SPDT | 0.5 - 5A | 0.150-7 seconds | 1 second | Encapsulated | Blackhawk Supply

COH50A2FF | Overcurrent only | 240V AC | 10A SPDT | 0.5 - 5A | 0.150-7 seconds | 1 second | Encapsulated | Macromatic

Brand: Macromatic

SKU: COH50A2FF

Macromatic TH43161-08-12J Repeat cycle (OFF 1st) | 240V AC/DC | 30A SPDT | 0.05 - 5 seconds | 0.6 - 60 seconds | Encapsulated | Analog | Blackhawk Supply

TH43161-08-12J | Repeat cycle (OFF 1st) | 240V AC / DC | 30A SPDT | 0.05 - 5 seconds | 0.6 - 60 seconds | Encapsulated | Analog | Macromatic

Brand: Macromatic

SKU: TH43161-08-12J

Johnson Controls CSDSC-VFD4 VFDCURRSW1-135ANC12V | Blackhawk Supply

CSDSC-VFD4 | VFDCURRSW1-135ANC12V | Johnson Controls

Brand: Johnson Controls

SKU: CSDSC-VFD4

Macromatic COH50A8FF Overcurrent only | 240V AC | 10A SPDT | 0.5 - 5A | 0.150-7 seconds | 1 second | Encapsulated | Blackhawk Supply

COH50A8FF | Overcurrent only | 240V AC | 10A SPDT | 0.5 - 5A | 0.150-7 seconds | 1 second | Encapsulated | Macromatic

Brand: Macromatic

SKU: COH50A8FF

Macromatic TH43161-31-33J Repeat cycle (OFF 1st) | 240V AC/DC | 30A SPDT | 0.05 - 5 seconds | 1 - 100 seconds | Encapsulated | Analog | Blackhawk Supply

TH43161-31-33J | Repeat cycle (OFF 1st) | 240V AC / DC | 30A SPDT | 0.05 - 5 seconds | 1 - 100 seconds | Encapsulated | Analog | Macromatic

Brand: Macromatic

SKU: TH43161-31-33J

Johnson Controls CSDSC-VFD2 VFDCURRSW1-135ANC24V | Blackhawk Supply

CSDSC-VFD2 | VFDCURRSW1-135ANC24V | Johnson Controls

Brand: Johnson Controls

SKU: CSDSC-VFD2

CR Magnetics CR5310-5 DC Voltage Transducer | Single Element | DC Frequency | >=2K Output Load | 24 VDC +/-10% | 0-150 VDC Input Range | +/-5 VDC Output Range | Blackhawk Supply

CR5310-5 | DC Voltage Transducer | Single Element | DC Frequency | >=2K Output Load | 24 VDC + / -10% | 0-150 VDC Input Range | + / -5 VDC Output Range | CR Magnetics

Brand: CR Magnetics

SKU: CR5310-5

Dwyer SCS-211125 Split core current switch with adjustable set point | amperage range 1.25 to 135 A. | Blackhawk Supply

SCS-211125 | Split core current switch with adjustable set point | amperage range 1.25 to 135 A. | Dwyer

Brand: Dwyer

SKU: SCS-211125

Macromatic TH43162-09-17J Repeat cycle (OFF 1st) | 120V AC/DC | 30A SPDT | 0.05 - 5 seconds | 1.2 - 120 seconds | Encapsulated | Analog | Blackhawk Supply

TH43162-09-17J | Repeat cycle (OFF 1st) | 120V AC / DC | 30A SPDT | 0.05 - 5 seconds | 1.2 - 120 seconds | Encapsulated | Analog | Macromatic

Brand: Macromatic

SKU: TH43162-09-17J

CR Magnetics CR4810-150 Average RMS AC Voltage Transducer Single Element | 50 Hz - 400 Hz | >=2K Output Load | 24 VDC +/-10% | 0 - 150 VAC Input Range | 0 - 5 VDC Output Range | Blackhawk Supply

CR4810-150 | Average RMS AC Voltage Transducer Single Element | 50 Hz - 400 Hz | >=2K Output Load | 24 VDC + / -10% | 0 - 150 VAC Input Range | 0 - 5 VDC Output Range | CR Magnetics

Brand: CR Magnetics

SKU: CR4810-150

CR Magnetics CR9621-50-PNP-M Adjustable AC Current Switch | Solid Core | Mounting Case | Normally Open | Solid State Output | PNP Configuration | 30 VDC Swicthing Max | 5-50A Trip Range | 0.26" ID | Blackhawk Supply

CR9621-50-PNP-M | Adjustable AC Current Switch | Solid Core | Mounting Case | Normally Open | Solid State Output | PNP Configuration | 30 VDC Swicthing Max | 5-50A Trip Range | 0.26" ID | CR Magnetics

Brand: CR Magnetics

SKU: CR9621-50-PNP-M

Mamac CU-850 Current Sensor (Solid Core) | 0-5 VDC Output | Jumper Selectable: 0-10 | 0-20 | 0-50A | Blackhawk Supply

CU-850 | Current Sensor (Solid Core) | 0-5 VDC Output | Jumper Selectable: 0-10 | 0-20 | 0-50A | Mamac

Brand: Mamac

SKU: CU-850

Dwyer SCS-211125-R Split core current switch | amperage range 1.25 to 135 A. adjustable set point | with attached control relay. | Blackhawk Supply

SCS-211125-R | Split core current switch | amperage range 1.25 to 135 A. adjustable set point | with attached control relay. | Dwyer

Brand: Dwyer

SKU: SCS-211125-R

Macromatic TH43161-F-35J Repeat cycle (OFF 1st) | 240V AC/DC | 30A SPDT | 0.05 - 5 seconds | 0.05 - 5 seconds | Encapsulated | Analog | Blackhawk Supply

TH43161-F-35J | Repeat cycle (OFF 1st) | 240V AC / DC | 30A SPDT | 0.05 - 5 seconds | 0.05 - 5 seconds | Encapsulated | Analog | Macromatic

Brand: Macromatic

SKU: TH43161-F-35J

ACI QTS-17111X-S000000 Expl Proof Sensor, Acetylene, 0-100% LEL, 3-wire 4-20mA Output | Blackhawk Supply

QTS-17111X-S000000 | Expl Proof Sensor, Acetylene, 0-100% LEL, 3-wire 4-20mA Output | ACI

Brand: ACI

SKU: QTS-17111X-S000000

CR Magnetics CR5311-200 DC Voltage Transducer | Single Element | DC Frequency | >=2K Output Load | 24 VDC +/-10% | 0-200 VDC Input Range | +/-10 VDC Output Range | Blackhawk Supply

CR5311-200 | DC Voltage Transducer | Single Element | DC Frequency | >=2K Output Load | 24 VDC + / -10% | 0-200 VDC Input Range | + / -10 VDC Output Range | CR Magnetics

Brand: CR Magnetics

SKU: CR5311-200

ACI QTS-17191X-S000000-ACETONE Expl Proof Sensor, Acetone, 0-100% LEL, 3-wire 4-20mA Output | Blackhawk Supply

QTS-17191X-S000000-ACETONE | Expl Proof Sensor, Acetone, 0-100% LEL, 3-wire 4-20mA Output | ACI

Brand: ACI

SKU: QTS-17191X-S000000-ACETONE

Veris H800NC Hawkeye 0.5 to 200 A Fixed Trip Point Current Switch, Solid-Core | Blackhawk Supply

H800NC | Hawkeye 0.5 to 200 A Fixed Trip Point Current Switch, Solid-Core | Veris

Brand: Veris

SKU: H800NC

Veris H721 Hawkeye 4 to 20 mA Solid-Core VFD Current Sensor | Blackhawk Supply

H721 | Hawkeye 4 to 20 mA Solid-Core VFD Current Sensor | Veris

Brand: Veris

SKU: H721

Honeywell E-MON Meters E10200-333V 6000splitCoreCurrSens 200amp | Blackhawk Supply

E10200-333V | 6000splitCoreCurrSens 200amp | Honeywell E-MON Meters

Brand: Honeywell E-MON Meters

SKU: E10200-333V

Honeywell E-MON Meters E-RS-5000-333V 6000ropeCurrSens 5000amp 3pc | Blackhawk Supply

E-RS-5000-333V | 6000ropeCurrSens 5000amp 3pc | Honeywell E-MON Meters

Brand: Honeywell E-MON Meters

SKU: E-RS-5000-333V

Honeywell E-MON Meters E10100-333V 6000splitCoreCurrSens 100amp | Blackhawk Supply

E10100-333V | 6000splitCoreCurrSens 100amp | Honeywell E-MON Meters

Brand: Honeywell E-MON Meters

SKU: E10100-333V

Honeywell E-MON Meters E10050-333V 6000splitCoreCurrSens 50amp | Blackhawk Supply

E10050-333V | 6000splitCoreCurrSens 50amp | Honeywell E-MON Meters

Brand: Honeywell E-MON Meters

SKU: E10050-333V

Honeywell E-MON Meters E10025-333V 6000splitCoreCurrSens 333mv25a | Blackhawk Supply

E10025-333V | 6000splitCoreCurrSens 333mv25a | Honeywell E-MON Meters

Brand: Honeywell E-MON Meters

SKU: E10025-333V

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Belimo B220+LF120 US CCV | 0.75" | 2 Way | 14 Cv | w/ Spg Rtn | 120V | On/Off | Blackhawk Supply

B220+LF120 US | CCV | 0.75" | 2 Way | 14 Cv | w/ Spg Rtn | 120V | On/Off | Belimo

Brand: Belimo

SKU: B220+LF120 US

iO HVAC Controls iO-TWIN iO HVAC Controls iO-TWIN Universal Twinning and Paralleling Kit | Blackhawk Supply

iO-TWIN | iO HVAC Controls iO-TWIN Universal Twinning and Paralleling Kit | iO HVAC Controls

Brand: iO HVAC Controls

SKU: iO-TWIN

Belimo GMB24-SR Damper Actuator | 360 in-lb | Non-Spg Rtn | 24V | Modulating | Blackhawk Supply

GMB24-SR | Damper Actuator | 360 in-lb | Non-Spg Rtn | 24V | Modulating | Belimo

Brand: Belimo

SKU: GMB24-SR

Belimo LRB24-3 Valve Actuator | Non-Spg | 24V | On/Off/Floating Point | Blackhawk Supply

LRB24-3 | Valve Actuator | Non-Spg | 24V | On/Off/Floating Point | Belimo

Brand: Belimo

SKU: LRB24-3

Belimo AMB24-SR Damper Actuator | 180 in-lb | Non-Spg Rtn | 24V | Modulating | Blackhawk Supply

AMB24-SR | Damper Actuator | 180 in-lb | Non-Spg Rtn | 24V | Modulating | Belimo

Brand: Belimo

SKU: AMB24-SR

Belimo LMB24-3 Damper Actuator | 45 in-lb | Non-Spg Rtn | 24V | On/Off/Floating Point | Blackhawk Supply

LMB24-3 | Damper Actuator | 45 in-lb | Non-Spg Rtn | 24V | On/Off/Floating Point | Belimo

Brand: Belimo

SKU: LMB24-3

Johnson Controls A421AEC-02C ELECTRONICSINGLESTAGE | Blackhawk Supply

A421AEC-02C | ELECTRONICSINGLESTAGE | Johnson Controls

Brand: Johnson Controls

SKU: A421AEC-02C

Veris AG01 Gas Platform Sensor,Carbon Monoxide 3% | Blackhawk Supply

AG01 | Gas Platform Sensor, Carbon Monoxide 3% | Veris

Brand: Veris

SKU: AG01

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