Current Transformer (CT) Picker

Learn more about current sensors on our blog:
Easy Steps to Choosing the Right Current transformers

RoCoil, Split Core, Clamp On, Standard & Revenue Grade Current Transformers

ImagePart NumberRated Current (333.3mV)CT StyleFormWindow SizeCurrent RangeAccuracy GradeAccuracy RatingLead LengthPriceBuyhf:att:pa_current-ratinghf:att:pa_stylehf:att:pa_formhf:att:pa_revenue-gradehf:tags
RoCoil Series | Rogowski Coil | Flexible Current Sensors - 16" RōCoil, 4.5" (11.5cm), 9.8' (3m), Not Applicable
CTR16A4U4000ARogowski Coil16" RōCoil4.5" (11.5cm)5-5000AStandard±1.2% error9.8' (3m)$150.00
4000arogowski-coil16-40-6cm-ropeno
RoCoil Series | Rogowski Coil | Flexible Current Sensors - 16" RōCoil, 4.5" (11.5cm), 23' (7m), Not Applicable
CTR16A4U-7M4000ARogowski Coil16" RōCoil4.5" (11.5cm)5-5000AStandard±1.2% error23' (7m)$175.00
4000arogowski-coil16-40-6cm-ropeno
RoCoil Series | Rogowski Coil | Flexible Current Sensors - 16" RōCoil, 4.5" (11.5cm), 49' (15m), Not Applicable
CTR16A4U-15M4000ARogowski Coil16" RōCoil4.5" (11.5cm)5-5000AStandard±1.2% error49' (15m)$245.00
4000arogowski-coil16-40-6cm-ropeno
RoCoil Series | Rogowski Coil | Flexible Current Sensors - 24" RōCoil, 7.0" (17.9cm), 9.8' (3m), Not Applicable
CTR24A4U4000ARogowski Coil24" RōCoil7.0" (17.9cm)5-5000AStandard±1.2% error9.8' (3m)$190.00
4000arogowski-coil24-61cm-ropeno
RoCoil Series | Rogowski Coil | Flexible Current Sensors - 24" RōCoil, 7.0" (17.9cm), 23' (7m), Not Applicable
CTR24A4U-7M4000ARogowski Coil24" RōCoil7.0" (17.9cm)5-5000AStandard±1.2% error23' (7m)$215.00
4000arogowski-coil24-61cm-ropeno
RoCoil Series | Rogowski Coil | Flexible Current Sensors - 24" RōCoil, 7.0" (17.9cm), 49' (15m), Not Applicable
CTR24A4U-15M4000ARogowski Coil24" RōCoil7.0" (17.9cm)5-5000AStandard±1.2% error49' (15m)$285.00
4000arogowski-coil24-61cm-ropeno
RoCoil Series | Rogowski Coil | Flexible Current Sensors - 36" RōCoil, 10.8" (27.5cm), 9.8' (3m), Not Applicable
CTR36A4U4000ARogowski Coil36" RōCoil10.8" (27.5cm)5-5000AStandard±1.2% error9.8' (3m)$255.00
4000arogowski-coil36-91-4cm-ropeno
RoCoil Series | Rogowski Coil | Flexible Current Sensors - 36" RōCoil, 10.8" (27.5cm), 23' (7m), Not Applicable
CTR36A4U-7M4000ARogowski Coil36" RōCoil10.8" (27.5cm)5-5000AStandard±1.2% error23' (7m)$315.00
4000arogowski-coil36-91-4cm-ropeno
RoCoil Series | Rogowski Coil | Flexible Current Sensors - 36" RōCoil, 10.8" (27.5cm), 49' (15m), Not Applicable
CTR36A4U-15M4000ARogowski Coil36" RōCoil10.8" (27.5cm)5-5000AStandard±1.2% error49' (15m)$370.00
4000arogowski-coil36-91-4cm-ropeno
RoCoil Series | Rogowski Coil | Flexible Current Sensors - 47" RōCoil, 14.6" (37.0cm), 9.8' (3m), Not Applicable
CTR47A4U4000ARogowski Coil47" RōCoil14.6" (37.0cm)5-5000AStandard±1.2% error9.8' (3m)$400.00
4000arogowski-coil47-119-4cm-ropeno
20/50/100/200A Split Core Block Hinged Current Transformer - 20A, 0.4" (10mm), 0.25-40A, 9.8' (3m), Not Applicable
CTHSC020U20ASplit CoreBlock- Hinged0.4" (10mm)0.25-40AStandard±0.5% error9.8' (3m)$34.00
20asplit-coreblock-hingedno
20/50/100/200A Split Core Block Hinged Current Transformer - 20A, 0.4" (10mm), 0.25-40A, 23' (7m), Not Applicable
CTHSC020U-7M20ASplit CoreBlock- Hinged0.4" (10mm)0.25-40AStandard±0.5% error23' (7m)$48.00
20asplit-coreblock-hingedno
20/50/100/200A Split Core Block Hinged Current Transformer - 50A, 0.4" (10mm), 0.25-80A, 9.8' (3m), Not Applicable
CTHSC050U50ASplit CoreBlock- Hinged0.4" (10mm)0.25-80AStandard±0.5% error9.8' (3m)$34.00
50asplit-coreblock-hingedno
20/50/100/200A Split Core Block Hinged Current Transformer - 50A, 0.4" (10mm), 0.25-80A, 23' (7m), Not Applicable
CTHSC050U-7M50ASplit CoreBlock- Hinged0.4" (10mm)0.25-80AStandard±0.5% error23' (7m)$48.00
50asplit-coreblock-hingedno
20/50/100/200A Split Core Block Hinged Current Transformer - 100A, 1-200A, 9.8' (3m), Not Applicable
CTHMC100U100ASplit CoreBlock- Hinged1-25mm1-200AStandard±0.5% error9.8' (3m)$82.00
100asplit-coreblock-hingedno
20/50/100/200A Split Core Block Hinged Current Transformer - 100A, 1-200A, 23' (7m), Not Applicable
CTHMC100U-7M100ASplit CoreBlock- Hinged1-25mm1-200AStandard±0.5% error23' (7m)$94.00
100asplit-coreblock-hingedno
20/50/100/200A Split Core Block Hinged Current Transformer - 200A, 1-300A, 9.8' (3m), Not Applicable
CTHMC200U200ASplit CoreBlock- Hinged1-25mm1-300AStandard±0.5% error9.8' (3m)$82.00
200asplit-coreblock-hingedno
20/50/100/200A Split Core Block Hinged Current Transformer - 200A, 1-300A, 23' (7m), Not Applicable
CTHMC200U-7M200ASplit CoreBlock- Hinged1-25mm1-300AStandard±0.5% error23' (7m)$94.00
200asplit-coreblock-hingedno
400/600/1000A Split Core Rectangular Slide-Out Current Transformers - 400A, 1.25" (32mm), 8-480A, Not Applicable
CTSCM0400U400ASplit CoreRectangular - Slide-Out1.25" (32mm)8-480AStandard±1% error9.8' (3m)$88.00400asplit-corerectangular-slide-outno
400/600/1000A Split Core Rectangular Slide-Out Current Transformers - 600A, 1.25" (32mm), 12-720A, Not Applicable
CTSCM0600U600ASplit CoreRectangular - Slide-Out1.25" (32mm)12-720AStandard±1% error9.8' (3m)$88.00
600asplit-corerectangular-slide-outno
400/600/1000A Split Core Rectangular Slide-Out Current Transformers - 1000A, 2.0" (51mm), 20-1200A, Not Applicable
CTSCL1000U1000ASplit CoreRectangular - Slide-Out2.0" (51mm)20-1200AStandard±1% error9.8' (3m)$105.00
1000asplit-corerectangular-slide-outno
150A Split Core EZ Clamp-On Current Transformer
CTCON0150EZU150ASplit CoreEZ Clamp-On1.0" (25mm)0.5-300AStandard±1% error8' (2.4m)$105.00
150asplit-coreclamp-on-ez-clampno
100A/200A/400A Revenue Grade Split Core Rectangular Hinged Current Transformers - 100A, 1.25" (32mm), 1-200A
CTSRL100U100ASplit CoreRectangular - Hinged1.25" (32mm)1-200ARevenue (Tenant Billing)±0.2% error8' (2.4m)$135.00
100asplit-corerectangular-hingedyesctep-california-type-evaluation-program nyc-ll88-locallaw-88
100A/200A/400A Revenue Grade Split Core Rectangular Hinged Current Transformers - 200A, 1.25" (32mm), 2-400A
CTSRL200U200ASplit CoreRectangular - Hinged1.25" (32mm)2-400ARevenue (Tenant Billing)±0.2% error8' (2.4m)$135.00
200asplit-corerectangular-hingedyesctep-california-type-evaluation-program nyc-ll88-locallaw-88
100A/200A/400A Revenue Grade Split Core Rectangular Hinged Current Transformers - 400A, 1.25" (32mm), 4-500A
CTSRL400U400ASplit CoreRectangular - Hinged1.25" (32mm)4-500ARevenue (Tenant Billing)±0.2% error8' (2.4m)$145.00
400asplit-corerectangular-hingedyesctep-california-type-evaluation-program nyc-ll88-locallaw-88
200A Split Core Toroidal Hinged Current Transformer
CTSCCM0200U200ASplit CoreToroidal - Hinged1.0" (25mm)2-240AStandard±0.5% error9.8' (3m)$82.00
200asplit-corehinged-toroidalno
5/20/50/100A Revenue Grade Solid Core Toroidal D-Shape Current Transformer - 5A, 0.05-10A
CTRGT120005U5ASolid CoreToroidal - D-Shape0.5" (12.8mm)0.05-10ARevenue (Tenant Billing)±0.2% error8' (2.4m)$40.00
5asolid-cored-shapeyesnyc-ll88-locallaw-88
5/20/50/100A Revenue Grade Solid Core Toroidal D-Shape Current Transformer - 20A, 0.2-40A
CTRGT120020U20ASolid CoreToroidal - D-Shape0.5" (12.8mm)0.2-40ARevenue (Tenant Billing)±0.2% error8' (2.4m)$40.00
20asolid-cored-shapeyesnyc-ll88-locallaw-88
5/20/50/100A Revenue Grade Solid Core Toroidal D-Shape Current Transformer - 50A, 0.5-100A
CTRGT120050U50ASolid CoreToroidal - D-Shape0.5" (12.8mm)0.5-100ARevenue (Tenant Billing)±0.2% error8' (2.4m)$40.00
50asolid-cored-shapeyesnyc-ll88-locallaw-88
5/20/50/100A Revenue Grade Solid Core Toroidal D-Shape Current Transformer - 100A, 1.0-200A
CTRGT120100U100ASolid CoreToroidal - D-Shape0.5" (12.8mm)1.0-200ARevenue (Tenant Billing)±0.2% error8' (2.4m)$40.00
100asolid-cored-shapeyesnyc-ll88-locallaw-88
400A Split Core Rectangular Hinged Current Transformer
CTHLC0400U400ASplit CoreBlock- Hinged1.4" (36mm)4-400AStandard±0.5% error9.8' (3m)$94.00
400asplit-coreblock-hingedno
100/200/400A Revenue Grade Solid Core Toroidal Current Transformers - 100A, 1-120A, 0.75" (19mm)
CTRGT190100U100ASolid CoreToroidal0.75" (19mm)1-120ARevenue (Tenant Billing)±0.2% error9.8' (3m)$47.00
100asolid-coretoroidalyesctep-california-type-evaluation-program nyc-ll88-locallaw-88
100/200/400A Revenue Grade Solid Core Toroidal Current Transformers - 200A, 2-240A, 1.0" (25mm)
CTRGT250200U200ASolid CoreToroidal1.0" (25mm)2-240ARevenue (Tenant Billing)±0.2% error9.8' (3m)$52.00
200asolid-coretoroidalyesctep-california-type-evaluation-program nyc-ll88-locallaw-88
100/200/400A Revenue Grade Solid Core Toroidal Current Transformers - 400A, 4-480A, 1.25" (32mm)
CTRGT320400U400ASolid CoreToroidal1.25" (32mm)4-480ARevenue (Tenant Billing)±0.2% error9.8' (3m)$74.00
400asolid-coretoroidalyesctep-california-type-evaluation-program nyc-ll88-locallaw-88
5A/50A Revenue Grade Split Core Rectangular Hinged Current Transformers - 5A, 0.4" (10mm), 0.05-10A, nyc ll88, Not Applicable
CTSRS005U5ASplit CoreRectangular - Hinged0.4" (10mm)0.05-10ARevenue (Tenant Billing)±0.2% error8' (2.4m)$125.00
5asplit-corerectangular-hingedyesnyc-ll88-locallaw-88
5A/50A Revenue Grade Split Core Rectangular Hinged Current Transformers - 50A, 0.4" (10mm), 0.05-100A, Not Applicable
CTSRS050U50ASplit CoreRectangular - Hinged0.4" (10mm)0.05-100ARevenue (Tenant Billing)±0.2% error8' (2.4m)$125.00
50asplit-corerectangular-hingedyesnyc-ll88-locallaw-88
100/200/400A Revenue Grade Solid Core Toroidal Mounting Current Transformers - 100A, 0.6" (15mm), 1-100A
CTRGTM15100U100ASolid CoreToroidal - Mounting0.6" (15mm)1-100ARevenue (Tenant Billing)±0.2% error9.8' (3m)$47.00
100asolid-coremounting-toroidalyesctep-california-type-evaluation-program ny-psc-new-york-public-service-commission nyc-ll88-locallaw-88
100/200/400A Revenue Grade Solid Core Toroidal Mounting Current Transformers - 200A, 0.78" (20mm), 2-200A
CTRGTM20200U200ASolid CoreToroidal - Mounting0.78" (20mm)2-200ARevenue (Tenant Billing)±0.2% error9.8' (3m)$52.00
200asolid-coremounting-toroidalyesctep-california-type-evaluation-program ny-psc-new-york-public-service-commission nyc-ll88-locallaw-88
100/200/400A Revenue Grade Solid Core Toroidal Mounting Current Transformers - 400A, 1.38" (35mm), 4-400A
CTRGTM35400U400ASolid CoreToroidal - Mounting1.38" (35mm)4-400ARevenue (Tenant Billing)±0.2% error9.8' (3m)$74.00
400asolid-coremounting-toroidalyesctep-california-type-evaluation-program ny-psc-new-york-public-service-commission nyc-ll88-locallaw-88