Current transformers Transformer Type

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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Dwyer APT-40-5DN Series APT AC Power Transformers 40 VA, 120/208/240/277/480 VAC input voltage, Internal fuse | Blackhawk Supply

APT-40-5DN | Series APT AC Power Transformers 40 VA, 120 / 208 / 240 / 277 / 480 VAC input voltage, Internal fuse | Dwyer

Brand: Dwyer

SKU: APT-40-5DN

Dwyer APT-50-5SB Series APT AC Power Transformers 50 VA, 120/208/240/277/480 VAC input voltage, Button circuit breaker | Blackhawk Supply

APT-50-5SB | Series APT AC Power Transformers 50 VA, 120 / 208 / 240 / 277 / 480 VAC input voltage, Button circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-50-5SB

Dwyer APT-50-5DB Series APT AC Power Transformers 50 VA, 120/208/240/277/480 VAC input voltage, Button circuit breaker | Blackhawk Supply

APT-50-5DB | Series APT AC Power Transformers 50 VA, 120 / 208 / 240 / 277 / 480 VAC input voltage, Button circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-50-5DB

Dwyer APT-75-5SB Series APT AC Power Transformers 75 VA, 120/208/240/277/480 VAC input voltage, Button circuit breaker | Blackhawk Supply

APT-75-5SB | Series APT AC Power Transformers 75 VA, 120 / 208 / 240 / 277 / 480 VAC input voltage, Button circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-75-5SB

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-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-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

Dwyer APT-75-5DB Series APT AC Power Transformers 75 VA, 120/208/240/277/480 VAC input voltage, Button circuit breaker | Blackhawk Supply

APT-75-5DB | Series APT AC Power Transformers 75 VA, 120 / 208 / 240 / 277 / 480 VAC input voltage, Button circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-75-5DB

Dwyer APT-100-5DB Series APT AC Power Transformers 100 VA, 120/208/240/277/480 VAC input voltage, Button circuit breaker | Blackhawk Supply

APT-100-5DB | Series APT AC Power Transformers 100 VA, 120 / 208 / 240 / 277 / 480 VAC input voltage, Button circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-100-5DB

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Brand: Siemens

SKU: QAA2280.FWSC

Belimo LF120-S US Damper Actuator | 35 in-lb | Spg Rtn | 120V | On/Off | Blackhawk Supply

LF120-S US | Damper Actuator | 35 in-lb | Spg Rtn | 120V | On/Off | Belimo

Brand: Belimo

SKU: LF120-S US

Viconics VT7652B5031 Thermostat | Roof | 2 Heat Cntct | 2 Cool Cntct | Programmable | Blackhawk Supply

VT7652B5031 | Thermostat | Roof | 2 Heat Cntct | 2 Cool Cntct | Programmable | Viconics

Brand: Viconics

SKU: VT7652B5031

Viconics VT8650U5000B Roof Top & Heat Pump Unit Controller w/ IAQ, Economizer, Humidity & Scheduling | Blackhawk Supply

VT8650U5000B | Roof Top & Heat Pump Unit Controller w/ IAQ, Economizer, Humidity & Scheduling | Viconics

Brand: Viconics

SKU: VT8650U5000B

Square D MD3604X Switch Motor Disconnect 60A 3P NEMA 4X | Blackhawk Supply

MD3604X | Switch Motor Disconnect 60A 3P NEMA 4X | Square D

Brand: Square D

SKU: MD3604X

Contemporary Controls EISK5-GT Gig Switch. 5-port 10BASE-T/100BASE-TX/1000BASE-T Skorpion switch, DIN-rail mount | Blackhawk Supply

EISK5-GT | Gig Switch. 5-port 10BASE-T/100BASE-TX/1000BASE-T Skorpion switch, DIN-rail mount | Contemporary Controls

Brand: Contemporary Controls

SKU: EISK5-GT

KMC BAC-5051AE Router: BACnet, IP/Dual Enet/Single MSTP | Blackhawk Supply

BAC-5051AE | Router: BACnet, IP/Dual Enet/Single MSTP | KMC

Brand: KMC

SKU: BAC-5051AE

Contemporary Controls EISK8-GT Gig Switch. 8-port 10BASE-T/100BASE-TX/1000BASE-T Skorpion switch, DIN-rail mount | Blackhawk Supply

EISK8-GT | Gig Switch. 8-port 10BASE-T/100BASE-TX/1000BASE-T Skorpion switch, DIN-rail mount | Contemporary Controls

Brand: Contemporary Controls

SKU: EISK8-GT

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