current transformers

Shop Current Transformers

Accurate current measurement is essential for effective electrical system monitoring and protection. At Blackhawk Supply, we stock a comprehensive range of current transformers (CTs) engineered to step down high electrical currents into manageable signals for metering, protective relaying and control applications.

From split core current transformers that install without circuit interruption to solid core models delivering precision measurement, our CT inventory supports the diverse requirements of industrial facilities, commercial buildings and renewable energy installations.

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AC Current Transformers

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Split Core Current Transformers

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CR Magnetics CR3113-2000 General Purpose Wire Lead Current Transformer | Split Core | 2000 Turns | 16.0 Vmax RMS | 150 Arms Maximum Input Current Range | 0.98" ID | Blackhawk Supply

CR3113-2000 | General Purpose Wire Lead Current Transformer | Split Core | 2000 Turns | 16.0 Vmax RMS | 150 Arms Maximum Input Current Range | 0.98" ID | CR Magnetics

Brand: CR Magnetics

SKU: CR3113-2000

CR Magnetics CR2SFT-201 AC Current Transformer | Commerical Grade | Mounting Case | (2) Terminals #8-32 | 0 - 200 AAC Input Range | 0 - 5AAC Output Range | 1.13" ID | Blackhawk Supply

CR2SFT-201 | AC Current Transformer | Commerical Grade | Mounting Case | (2) Terminals #8-32 | 0 - 200 AAC Input Range | 0 - 5AAC Output Range | 1.13" ID | CR Magnetics

Brand: CR Magnetics

SKU: CR2SFT-201

CR Magnetics CR2SFT-750 AC Current Transformer | Commerical Grade | Mounting Case | (2) Terminals #8-32 | 0 - 75 AAC Input Range | 0 - 5AAC Output Range | 1.13" ID | Blackhawk Supply

CR2SFT-750 | AC Current Transformer | Commerical Grade | Mounting Case | (2) Terminals #8-32 | 0 - 75 AAC Input Range | 0 - 5AAC Output Range | 1.13" ID | CR Magnetics

Brand: CR Magnetics

SKU: CR2SFT-750

CR Magnetics CR2RL-750 AC Current Transformer | Commerical Grade | Donut Style | 2' Fly Leads 16AWG | 0 - 75 AAC Input Range | 0 - 5AAC Output Range | 1.13" ID | Blackhawk Supply

CR2RL-750 | AC Current Transformer | Commerical Grade | Donut Style | 2' Fly Leads 16AWG | 0 - 75 AAC Input Range | 0 - 5AAC Output Range | 1.13" ID | CR Magnetics

Brand: CR Magnetics

SKU: CR2RL-750

Dwyer APT-100-2DB AC power transformer | 240 VAC input | 24 VAC isolated output | 96 VA | dual hub | w/ circuit breaker | Blackhawk Supply

APT-100-2DB | AC power transformer | 240 VAC input | 24 VAC isolated output | 96 VA | dual hub | w / circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-100-2DB

Dwyer APT-50-1SN AC power transformer | 120 VAC input | 24 VAC isolated output | 50 VA | single hub | Blackhawk Supply

APT-50-1SN | AC power transformer | 120 VAC input | 24 VAC isolated output | 50 VA | single hub | Dwyer

Brand: Dwyer

SKU: APT-50-1SN

Dwyer APT-100-2SB AC power transformer | 240 VAC input | 24 VAC isolated output | 96 VA | single hub | w/ circuit breaker | Blackhawk Supply

APT-100-2SB | AC power transformer | 240 VAC input | 24 VAC isolated output | 96 VA | single hub | w / circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-100-2SB

Dwyer APT-40-1SN AC power transformer | 120 VAC input | 24 VAC isolated output | 40 VA | single hub | Blackhawk Supply

APT-40-1SN | AC power transformer | 120 VAC input | 24 VAC isolated output | 40 VA | single hub | Dwyer

Brand: Dwyer

SKU: APT-40-1SN

Dwyer APT-150-1DB Series APT AC Power Transformers 150 VA, 120 VAC input voltage, Button circuit breaker | Blackhawk Supply

APT-150-1DB | Series APT AC Power Transformers 150 VA, 120 VAC input voltage, Button circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-150-1DB

Dwyer APT-100-1SB AC power transformer | 120 VAC input | 24 VAC isolated output | 96 VA | single hub | w/ circuit breaker | Blackhawk Supply

APT-100-1SB | AC power transformer | 120 VAC input | 24 VAC isolated output | 96 VA | single hub | w / circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-100-1SB

Dwyer APT-40-3SN Series APT AC Power Transformers 40 VA, 120/208/240/277 VAC input voltage, Internal fuse | Blackhawk Supply

APT-40-3SN | Series APT AC Power Transformers 40 VA, 120 / 208 / 240 / 277 VAC input voltage, Internal fuse | Dwyer

Brand: Dwyer

SKU: APT-40-3SN

Dwyer APT-75-1SB AC power transformer | 120 VAC input | 24 VAC isolated output | 75 VA | single hub | w/ circuit breaker | Blackhawk Supply

APT-75-1SB | AC power transformer | 120 VAC input | 24 VAC isolated output | 75 VA | single hub | w / circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-75-1SB

Dwyer APT-100-1DB-20 AC power transformer | 120 VAC input | 24 VAC isolated output | 96 VA | dual hub | w/ circuit breaker | 20" leads | Blackhawk Supply

APT-100-1DB-20 | AC power transformer | 120 VAC input | 24 VAC isolated output | 96 VA | dual hub | w / circuit breaker | 20" leads | Dwyer

Brand: Dwyer

SKU: APT-100-1DB-20

Dwyer APT-50-2DN AC power transformer | 240 VAC input | 24 VAC isolated output | 50 VA | dual hub | Blackhawk Supply

APT-50-2DN | AC power transformer | 240 VAC input | 24 VAC isolated output | 50 VA | dual hub | Dwyer

Brand: Dwyer

SKU: APT-50-2DN

Dwyer APT-20-1SN Series APT AC Power Transformers 20 VA, 120 VAC input voltage | Blackhawk Supply

APT-20-1SN | Series APT AC Power Transformers 20 VA, 120 VAC input voltage | Dwyer

Brand: Dwyer

SKU: APT-20-1SN

Johnson Controls EI-5SP-1200-00 1200/5A SPLIT CORE CT; 1200/5A SPLIT CORE CT WITH 2.88" X 4.25" WINDOW | Blackhawk Supply

EI-5SP-1200-00 | 1200 / 5A SPLIT CORE CT; 1200 / 5A SPLIT CORE CT WITH 2.88" X 4.25" WINDOW | Johnson Controls

Brand: Johnson Controls

SKU: EI-5SP-1200-00

Johnson Controls EEM-CTS-020 EEM SPLIT 0.5" ID 80A; EEM SPLIT CORE; 0.5 IN ID; 600V; 80A MAX; 15FT EXTENDABLE LEAD | Blackhawk Supply

EEM-CTS-020 | EEM SPLIT 0.5" ID 80A; EEM SPLIT CORE; 0.5 IN ID; 600V; 80A MAX; 15FT EXTENDABLE LEAD | Johnson Controls

Brand: Johnson Controls

SKU: EEM-CTS-020

CR Magnetics CR5RL-151 AC Current Transformer | Commerical Grade | Donut Style | 2' Fly Leads 16AWG | 0 - 150 AAC Input Range | 0 - 5AAC Output Range | 1.56" ID | Blackhawk Supply

CR5RL-151 | AC Current Transformer | Commerical Grade | Donut Style | 2' Fly Leads 16AWG | 0 - 150 AAC Input Range | 0 - 5AAC Output Range | 1.56" ID | CR Magnetics

Brand: CR Magnetics

SKU: CR5RL-151

CR Magnetics CR5220S-50 DC Current Transducer | Split Core | Single Element | DC Frequency 0 - 500 Output Load | 24 VDC +/-10% | 0-50 ADC Input Range | 4 - 20 mADC Output Range | 1.22" ID | Blackhawk Supply

CR5220S-50 | DC Current Transducer | Split Core | Single Element | DC Frequency 0 - 500 Output Load | 24 VDC + / -10% | 0-50 ADC Input Range | 4 - 20 mADC Output Range | 1.22" ID | CR Magnetics

Brand: CR Magnetics

SKU: CR5220S-50

Honeywell E50-208800-J04-SPKIT Class 5000 Meter, 120/208-240V, 800A, JIC Steel Enclosure, EZ-7, Modbus TCP/IP Protocol, Single Phase or Two Phase (Two Element), 2 Split-Core Current Sensors with 2V Output | Blackhawk Supply

E50-208800-J04-SPKIT | Class 5000 Meter, 120 / 208-240V, 800A, JIC Steel Enclosure, EZ-7, Modbus TCP / IP Protocol, Single Phase or Two Phase (Two Element), 2 Split-Core Current Sensors with 2V Output | Honeywell

Brand: Honeywell

SKU: E50-208800-J04-SPKIT

Dwyer SCT10-100 Current transducer | split core | 4-20 mA output | range 30/60/120A | Blackhawk Supply

SCT10-100 | Current transducer | split core | 4-20 mA output | range 30 / 60 / 120A | Dwyer

Brand: Dwyer

SKU: SCT10-100

Dwyer SCT10-102 Current transducer | split core | 0-5 VDC output | range 30/60/120A | Blackhawk Supply

SCT10-102 | Current transducer | split core | 0-5 VDC output | range 30 / 60 / 120A | Dwyer

Brand: Dwyer

SKU: SCT10-102

Dwyer SCT20-103 Current transducer | split core | 0-10 VDC output | range 20/100/150A | Blackhawk Supply

SCT20-103 | Current transducer | split core | 0-10 VDC output | range 20 / 100 / 150A | Dwyer

Brand: Dwyer

SKU: SCT20-103

Johnson Controls ROG-60G-10-KIT 3 CVT 6000A10FT; CVT KIT; 6000A; 36 IN CIRCUMFERENCE; 10 FT LEADS; BLACK; RED; BLUE | Blackhawk Supply

ROG-60G-10-KIT | 3 CVT 6000A10FT; CVT KIT; 6000A; 36 IN CIRCUMFERENCE; 10 FT LEADS; BLACK; RED; BLUE | Johnson Controls

Brand: Johnson Controls

SKU: ROG-60G-10-KIT

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Johnson Controls A421ABC-02C Single Stage Temp Controller with Sensor, 120/240VAC, NEMA1, 6' 6" lead, -40 to 212F, HTG/CLG | Blackhawk Supply

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Veris H221 Split Core | Span Adj. | Range: 0-300AAC | Output: 4-20mA | Loop | Blackhawk Supply

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iO HVAC Controls IO-WRP WIRELESS RELAY PLUS | Blackhawk Supply

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Belimo ARX24-MFT Valve Actuator | Non-Spg | 24V | MFT | Blackhawk Supply

ARX24-MFT | Valve Actuator | Non-Spg | 24V | MFT | Belimo

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