Electrical Measurement & Monitoring · Rogowski Coils
ZRC Series Flexible Rogowski Coils 600A-3000A
ZRC Series flexible Rogowski coils provide three documented window and sensitivity options for AC current measurement. ZRC-50, ZRC-100 and ZRC-150 cover 600A, 1000A and 3000A reference rated current, with a supplier-listed family maximum measurable current of 100 kA.
600A-3000AModel-specific reference rated current
50 / 100 / 150 mmThree documented window sizes
100 / 85 / 50 mV/kACalibrated sensitivity at 50 Hz
1 Hz-100 kHzSupplier-listed bandwidth (-3 dB)
Product Overview
The ZRC Series is a flexible split-core Rogowski coil family for AC current measurement around existing conductors and busbars. Three models provide 50 mm, 100 mm and 150 mm windows with model-specific calibrated sensitivities. ZRC coils are supplied without an integrator and require a compatible external integrator or meter input.
Key Features
- Flexible split-core wrap-around installation
- Three verified models and window sizes
- Model-specific calibrated sensitivity at 50 Hz
- Supplier-listed maximum measurable current of 100 kA
- 1 Hz to 100 kHz supplier-listed bandwidth
- 2 m lead and 8 mm coil section
- Raw Rogowski signal for compatible integrator or meter input
Available Models
Select by window size, reference rated current, calibrated sensitivity and compatibility with the intended integrator or measurement input.
| Model | Coil Length | Window Size | Reference Rated Current | Calibrated Sensitivity |
|---|---|---|---|---|
| ZRC-50 | 214 mm | 50 mm | 600A | 100 mV/kA at 50 Hz |
| ZRC-100 | 375 mm | 100 mm | 1000A | 85 mV/kA at 50 Hz |
| ZRC-150 | 535 mm | 150 mm | 3000A | 50 mV/kA at 50 Hz |
Technical Specifications
| Series | ZRC Series |
|---|---|
| Product Type | Flexible Rogowski coil current sensor |
| Maximum Measurable Current | 100 kA (supplier-listed family maximum) |
| Signal Architecture | Raw Rogowski signal; supplied without integrator |
| Integrator Requirement | External integrator required unless connected to a compatible manufacturer meter |
| Calibrated Read Accuracy | <0.5% at central position and 25 C |
| Phase Error | <=0.5 degrees |
| Linearity | +/-0.2% of reading |
| Bandwidth | 1 Hz to 100 kHz (-3 dB) |
| Coil Section | 8 mm diameter |
| Lead Length | 2 m |
| Operating Temperature | -30 C to 80 C |
| Storage Temperature | -40 C to 90 C |
| IP Rating | IP68 |
| Insulation | Coil 3000V; signal cable 1000V |
Reference rated current and calibrated sensitivity are model specific. Confirm integrator or meter-input compatibility before ordering.
Applications
The supporting image illustrates an industrial electrical cabinet environment and does not show an installed ZRC coil.
Industrial Power Monitoring
Flexible current sensing around existing conductors in industrial power monitoring systems.
Harmonic and Transient Measurement
Wide-band current signal acquisition for compatible measurement and analysis equipment.
High-Current Conductors
Non-intrusive current measurement where the selected window size fits the conductor or busbar arrangement.
Information to Confirm for Selection
- Required ZRC model and window size
- Reference rated current and expected maximum current
- Required calibrated sensitivity
- Compatible integrator or meter input
- Lead and connector requirement
- Quantity and application
FAQ
What is included in the ZRC family?
This page covers ZRC-50, ZRC-100 and ZRC-150 with 50 mm, 100 mm and 150 mm windows.
Does the ZRC coil include an integrator?
No. The manufacturer identifies ZRC as the version without an integrator. Use a compatible external integrator or manufacturer meter input.
Is 100 kA the rated current of every model?
No. It is the supplier-listed family maximum measurable current. Model reference rated currents are 600A, 1000A and 3000A.
How should a model be selected?
Match window size, reference current, calibrated sensitivity and compatibility with the intended integrator or measurement input.
Related Products
Request a Quote
Provide the required ZRC model, window size, reference current, calibrated sensitivity, compatible integrator or meter input, lead/connector requirement, quantity and application.