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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Johnson Controls ROG-15M-10-KIT 3 CVT 1500A10FT; CVT KIT; 1500A; 15 INCIRCUMFERENCE; 10 FT LEADS; BLACK; RED; BLUE | Blackhawk Supply

ROG-15M-10-KIT | 3 CVT 1500A10FT; CVT KIT; 1500A; 15 INCIRCUMFERENCE; 10 FT LEADS; BLACK; RED; BLUE | Johnson Controls

Brand: Johnson Controls

SKU: ROG-15M-10-KIT

Johnson Controls ROG-03S-03-KIT 3 CVT 300A 3FT; CVT KIT; 300A; 9 IN CIRCUMFERENCE; 3 FT LEADS; BLACK; RED; BLUE | Blackhawk Supply

ROG-03S-03-KIT | 3 CVT 300A 3FT; CVT KIT; 300A; 9 IN CIRCUMFERENCE; 3 FT LEADS; BLACK; RED; BLUE | Johnson Controls

Brand: Johnson Controls

SKU: ROG-03S-03-KIT

Dwyer LTTJ-010 Current transformer calibrated to 10 VDC at 10 amps. | Blackhawk Supply

LTTJ-010 | Current transformer calibrated to 10 VDC at 10 amps. | Dwyer

Brand: Dwyer

SKU: LTTJ-010

Dwyer LTTJ-020 Current transformer calibrated to 10 VDC at 20 amps. | Blackhawk Supply

LTTJ-020 | Current transformer calibrated to 10 VDC at 20 amps. | Dwyer

Brand: Dwyer

SKU: LTTJ-020

Dwyer LTTJ-103S Current transformer adjustable from 10-30 amps | NPN transistor output. | Blackhawk Supply

LTTJ-103S | Current transformer adjustable from 10-30 amps | NPN transistor output. | Dwyer

Brand: Dwyer

SKU: LTTJ-103S

Dwyer LTTJ-070 Current transformer calibrated to 10 VDC at 70 amps. | Blackhawk Supply

LTTJ-070 | Current transformer calibrated to 10 VDC at 70 amps. | Dwyer

Brand: Dwyer

SKU: LTTJ-070

Dwyer LTTJ-305S Current transformer adjustable from 30-50 amps | NPN transistor output. | Blackhawk Supply

LTTJ-305S | Current transformer adjustable from 30-50 amps | NPN transistor output. | Dwyer

Brand: Dwyer

SKU: LTTJ-305S

Dwyer LTTJ-100 Current transformer calibrated to 10 VDC at 100 amps. | Blackhawk Supply

LTTJ-100 | Current transformer calibrated to 10 VDC at 100 amps. | Dwyer

Brand: Dwyer

SKU: LTTJ-100

Dwyer LTTJ-305 Current transformer adjustable from 30-50 amps | 5-10 VDC output. | Blackhawk Supply

LTTJ-305 | Current transformer adjustable from 30-50 amps | 5-10 VDC output. | Dwyer

Brand: Dwyer

SKU: LTTJ-305

Dwyer LTTJ-030 Current transformer calibrated to 10 VDC at 30 amps. | Blackhawk Supply

LTTJ-030 | Current transformer calibrated to 10 VDC at 30 amps. | Dwyer

Brand: Dwyer

SKU: LTTJ-030

Dwyer LTTJ-090 Current transformer calibrated to 10 VDC at 90 amps. | Blackhawk Supply

LTTJ-090 | Current transformer calibrated to 10 VDC at 90 amps. | Dwyer

Brand: Dwyer

SKU: LTTJ-090

Dwyer CCT70-200 Current transformer | 100/150/200 A input | 4-20 RMS output | solid core. | Blackhawk Supply

CCT70-200 | Current transformer | 100 / 150 / 200 A input | 4-20 RMS output | solid core. | Dwyer

Brand: Dwyer

SKU: CCT70-200

Dwyer CCT60-200 Current transformer | 10/20/50 A input | 4-20 RMS output | solid core. | Blackhawk Supply

CCT60-200 | Current transformer | 10 / 20 / 50 A input | 4-20 RMS output | solid core. | Dwyer

Brand: Dwyer

SKU: CCT60-200

Dwyer CCT50-102 Split core Selectable 100/150/200 A Range, Self-powered, 0-5 V | Blackhawk Supply

CCT50-102 | Split core Selectable 100 / 150 / 200 A Range, Self-powered, 0-5 V | Dwyer

Brand: Dwyer

SKU: CCT50-102

Dwyer CCT70-100 Current transformer | 100/150/200 A input | 4-20 RMS output | split core. | Blackhawk Supply

CCT70-100 | Current transformer | 100 / 150 / 200 A input | 4-20 RMS output | split core. | Dwyer

Brand: Dwyer

SKU: CCT70-100

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

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

Brand: Dwyer

SKU: APT-50-1DN

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

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

Brand: Dwyer

SKU: APT-100-1DB

Dwyer APT-50-1DB AC power transformer | 120 VAC input | 24 VAC isolated output | 50 VA | dual hub | w/ circuit breaker | Blackhawk Supply

APT-50-1DB | AC power transformer | 120 VAC input | 24 VAC isolated output | 50 VA | dual hub | w / circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-50-1DB

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-50-2DB AC power transformer | 240 VAC input | 24 VAC isolated output | 50 VA | dual hub | w/ circuit breaker | Blackhawk Supply

APT-50-2DB | AC power transformer | 240 VAC input | 24 VAC isolated output | 50 VA | dual hub | w / circuit breaker | Dwyer

Brand: Dwyer

SKU: APT-50-2DB

Dwyer APT-40-2SN AC power transformer | 240 VAC input | 24 VAC isolated output | 40 VA | single hub | Blackhawk Supply

APT-40-2SN | AC power transformer | 240 VAC input | 24 VAC isolated output | 40 VA | single hub | Dwyer

Brand: Dwyer

SKU: APT-40-2SN

Dwyer APT-40-0SN AC power transformer | 24 VAC input | 24 VAC isolated output | 40 VA | single hub | Blackhawk Supply

APT-40-0SN | AC power transformer | 24 VAC input | 24 VAC isolated output | 40 VA | single hub | Dwyer

Brand: Dwyer

SKU: APT-40-0SN

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

CR Magnetics CR7SFT-201 AC Current Transformer | Commerical Grade | Mounting Case | (2) Terminals #8-32 | 0 - 200 AAC Input Range | 0 - 5AAC Output Range | 2.5" ID | Blackhawk Supply

CR7SFT-201 | AC Current Transformer | Commerical Grade | Mounting Case | (2) Terminals #8-32 | 0 - 200 AAC Input Range | 0 - 5AAC Output Range | 2.5" ID | CR Magnetics

Brand: CR Magnetics

SKU: CR7SFT-201

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