Current transformers Current transformers / switches Type

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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 CCT60-100 Current transformer | 10/20/50 A input | 4-20 RMS output | split core. | Blackhawk Supply

CCT60-100 | Current transformer | 10 / 20 / 50 A input | 4-20 RMS output | split core. | Dwyer

Brand: Dwyer

SKU: CCT60-100

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

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 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

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iO HVAC Controls iO-WR Wireless Relay | Blackhawk Supply

iO-WR | Wireless Relay | iO HVAC Controls

Brand: iO HVAC Controls

SKU: iO-WR

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

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

Brand: Johnson Controls

SKU: A421ABC-02C

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

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

Brand: Veris

SKU: H221

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

IO-WRP | WIRELESS RELAY PLUS | iO HVAC Controls

Brand: iO HVAC Controls

SKU: IO-WRP

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

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

Brand: Belimo

SKU: ARX24-MFT

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

EISK8-100T | 8-port 10BASE-T/100BASE-TX Skorpion switch, DIN-rail mount | Contemporary Controls

Brand: Contemporary Controls

SKU: EISK8-100T

Contemporary Controls EISK16-100T Skorpion 16-Port 10/100Mbps Switch | Blackhawk Supply

EISK16-100T | Skorpion 16-Port 10/100Mbps Switch | Contemporary Controls

Brand: Contemporary Controls

SKU: EISK16-100T

Danfoss 065B8900 ESBE ATA Thermostatic Draft Regulator, 3/4" FNPT, 2.2 Pound-force (10N) | Blackhawk Supply

065B8900 | ESBE ATA Thermostatic Draft Regulator, 3/4" FNPT, 2.2 Pound-force (10N) | Danfoss

Brand: Danfoss

SKU: 065B8900

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