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E-Mobility and Renewables
Current Sensors
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Current and Voltage Sensors
Current Sensors/Transducers
- Split Core AC Current Sensors Process Output
- Solid Core AC Current Sensors with Process Outputs
- DC Current Sensor with Process Outputs
- DC Current Shunts
- Panel Mount Current Sensors
- Busbar Mount Current Sensors
- Surface Mount Current Sensors
- PCB Mount Current Sensors
- Automotive Current Sensors
- High Precision/Flux Gate
- Sensor Mounting Accessories
Voltage Sensors/Transducers
Current Transformers
Special Current Sensors
kWh Energy Meters
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Temperature/Humidity Control
Power Process Automation
Motor Control and Protection
Programable Logic Controllers and HMI
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Current Transformers
Din Rail Mount Transducers, Transmitters, Panel Meters
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Circuit Breakers
- Moulded Case Circuit Breakers (MCCB)
- DC Moulded Case Circuit Breakers (DCMCCB)
- Miniature Circuit Breakers (MCB)
- DC Circuit Breakers
- RCD with Circuit Breaker (RCBO)
- Residual Current Circuit Breakers (RCCB,RCD)
- Hydraulic/Magnetic Circuit Breakers
- Appliance Thermal Circuit Breakers
- Rocker Switch Circuit Breakers
- Motor Protection Circuit Breakers
Switches and Indicators
Timers & Relays
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Power Semiconductors
Heatsink And Cooling
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Circuit Breakers & Appliance Fuses
Circuit Breakers
- Miniature Circuit Breakers (MCB)
- Moulded Case Circuit Breakers (MCCB)
- DC Miniature Circuit Breakers (DC MCB)
- DC Moulded Case Circuit Breakers (DC MCCB)
- Appliance Thermal Circuit Breakers
- Rocker & Push Button Circuit Breakers
- Motor Protection Breakers & Starters
- Hydraulic Magnetic Circuit Breakers
- Residual Current Device (RCD)
- Residual Current Circuit Breakers with Overcurrent Detection (RCBO)
Appliance Fuses & Holders
Solar Fuses
I²t Ultra Rapid Fuses
Semiconductor/HRC Fuses
- BS88 Style Fuse Links (aR)
- Small square Body DIN 43 653 Fuses (aR)
- European DIN 43 653 Fuses (aR)
- Automotive Power Fuses (gR)
- Cartridge Fuses with Din Rail Holder (gR)
- Cartridge Semiconductor Fuses (gR)
- European Size 33 (aR)
- NH0/NH00 Fuses (gG/gL)
- NH000 Fuses (gG/gL)
- NH1 Fuses (gG/gL)
- NH2 Fuses (gG/gL)
- NH3 Fuses (gG/gL)
- Amp Trap Fuses (Round)
Fuse Holders/Mounting Hardware
DC Contactor and Batttery Fuses
Surge Protection & Safety
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Power Controllers
Power Factor Correction
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Solid State Relays
- AC Control Solid State Relays
- DC Control Solid Sate Relays
- AC Switching Solid State Relays
- DC Switching Solid State Relays
- Din Rail Mount Solid State Relays
- Proportional Phase/Burst SSR
- 2 Pole Solid State Relays
- 3 Phase Solid State Relays
- Triac & AC Switch Modules
Solid State Relay & Heatsink
Slim DIN Rail or PCB Mount Types
Solid State Contactors
Contactors and HV Relays
Relays and Timers
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Power Supplies and Battery Chargers
Test Equipment
Test Leads and Probes
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IEC Inlets and Connectors
Wide Range of Switches
Cordsets & Power Distribution
PDU's and Enclosures
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Environmental
Light & Sound
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Communication Hardware
Software & IOT Systems
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- Current Sensors/Transducers
- Split Core AC Current Sensors Process Output
- Solid Core AC Current Sensors with Process Outputs
- DC Current Sensor with Process Outputs
- DC Current Shunts
- Panel Mount Current Sensors
- Busbar Mount Current Sensors
- Surface Mount Current Sensors
- PCB Mount Current Sensors
- Automotive Current Sensors
- High Precision/Flux Gate
- Sensor Mounting Accessories
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- Moulded Case Circuit Breakers (MCCB)
- DC Moulded Case Circuit Breakers (DCMCCB)
- Miniature Circuit Breakers (MCB)
- DC Circuit Breakers
- RCD with Circuit Breaker (RCBO)
- Residual Current Circuit Breakers (RCCB,RCD)
- Hydraulic/Magnetic Circuit Breakers
- Appliance Thermal Circuit Breakers
- Rocker Switch Circuit Breakers
- Motor Protection Circuit Breakers
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- Circuit Breakers
- Miniature Circuit Breakers (MCB)
- Moulded Case Circuit Breakers (MCCB)
- DC Miniature Circuit Breakers (DC MCB)
- DC Moulded Case Circuit Breakers (DC MCCB)
- Appliance Thermal Circuit Breakers
- Rocker & Push Button Circuit Breakers
- Motor Protection Breakers & Starters
- Hydraulic Magnetic Circuit Breakers
- Residual Current Device (RCD)
- Residual Current Circuit Breakers with Overcurrent Detection (RCBO)
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- Semiconductor/HRC Fuses
- BS88 Style Fuse Links (aR)
- Small square Body DIN 43 653 Fuses (aR)
- European DIN 43 653 Fuses (aR)
- Automotive Power Fuses (gR)
- Cartridge Fuses with Din Rail Holder (gR)
- Cartridge Semiconductor Fuses (gR)
- European Size 33 (aR)
- NH0/NH00 Fuses (gG/gL)
- NH000 Fuses (gG/gL)
- NH1 Fuses (gG/gL)
- NH2 Fuses (gG/gL)
- NH3 Fuses (gG/gL)
- Amp Trap Fuses (Round)
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- Home
- Rogowski Coils
Rogowski Coils / Rope CT's
Fastron Electronics supplies a great range of high quality Rogowski Coils from world leading manufacturers, including LEM (Switzerland) and Magnelab (USA).
Accuracy ranges from Class 1(stocked), Class 0.5(stocked) to Class 0.2 (on request)
Standard Rogowski Coils (or Rope CT's) use 0.333V output integrators. The reason an integrator is required is that the Rogowski coils do not output a suitable linear signal to connect to a normal meter, rather they output a dV/dt and requires integration to be readable. Some meters can take Rogowski coils directly. In order to use 3rd party coils with such meters you need to know the sensitivity of the coils and be able to set this in the meter. For example LEM ART Series coils have 22.5mV/kA sensitivity.
LEM ART and ARU Series Coils offer ferrite based cores, with extremely low positioning error and do not require calibration with integrators due their superior manufacturing process. Coils can be interchanged and integrators seamlessly swapped out in the field.
Output Ranges from 0.333V, to 5 Amp with True RMS Signal conditioned output available
Coils Only |
Specification |
Image |
ART-B22-D70-SP3 | 22.5mV/kA, Class 0.5, 70mm Diameter, 3M Shielded Cable | |
ART-B22-D125-SP3 | 22.5mV/kA, Class 0.5, 125mm Diameter, 3M Shielded Cable | ![]() |
ART-B22-D175-SP3 | 22.5mV/kA, Class 0.5, 175mm Diameter, 3M Shielded Cable | ![]() |
ART-B22-D300 | 22.5mV/kA, Class 0.5, 300mm Diameter, 1.5M Shielded Cable | ![]() |
ART-B22-D300-SP3 | 22.5mV/kA, Class 0.5, 300mm Diameter, 3M Shielded Cable | ![]() |
Integrators |
Specification |
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AI-PMUL |
0.333V,0.166V,4-20mA,0-20mA,0-5V,0-10V, Output. 22.5mV/kA,70mV/kA,80mV/kA,85mV/kA,100mV/kA,120mV/kA, Selectable Measurement Ranges 100,200,300,400,500,600,800,1000,1500,2000,4000,5000 | ![]() |
AI-PMUL-1A |
1 Amp Output. 22.5mV/kA,70mV/kA,80mV/kA,85mV/kA,100mV/kA,120mV/kA, Selectable Measurement Ranges 100,200,300,400,500,600,800,1000,1500,2000,4000,5000 | ![]() |
Magnelab Rogowski Coils Sets |
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RCS-1200 Series | 0.333V Output, Pre Calibrated Integrator and RCT Coils, 6 Inch Diameter | ![]() |
RCS-1800 Series | 0.333V Output, Pre Calibrated Integrator and RCT Coils, 6 Inch Diameter | ![]() |
RCS-2400 Series | 0.333V Output, Pre Calibrated Integrator and RCT Coils, 10 Inch Diameter | ![]() |
RCS-3600 Series | 0.333V Output, Pre Calibrated Integrator and RCT Coils, 12 Inch Diameter | ![]() |
RCS-1205-VAR Series | 5 Amp Output, Multirange 500,1000,2500,5000 Integrator and 3 x RCT Coils, 4 Inch Diameter | ![]() |
RCS-1805-VAR Series | 5 Amp Output, Multirange 500,1000,2500,5000 Integrator and 3 x RCT Coils, 6 Inch Diameter | ![]() |
RCS-2405-VAR Series | 5 Amp Output, Multirange 500,1000,2500,5000 Integrator and 3 x RCT Coils, 10 Inch Diameter | ![]() |
RCS-3605-VAR Series | 5 Amp Output, Multirange 500,1000,2500,5000 Integrator and 3 x RCT Coils, 12 Inch Diameter | ![]() |
RCS-4805-VAR Series | 5 Amp Output, Multirange 500,1000,2500,5000 Integrator and 3 x RCT Coils, 16 Inch Diameter | ![]() |
For detailed requirements or technical questions, or pricing please contact our friendly sales team.