Flexible current measuring coil | Rogowski ring | 1000A | D100mm | L-375mm | 2m cable | IP68
Code: ESZRC-100The flexible Rogowski current measuring coil is a professional, modern, and precise AC current sensor designed for engineers, electricians, maintenance specialists, and industrial automation system designers.
The sensor operates on the Rogowski principle, enabling highly accurate current measurements.The coil is characterized by high quality, wide current measurement range, and exceptionally convenient installation — an excellent choice for applications where standard current transformers cannot be used due to size or shape constraints.
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Technical specifications
Inner diameter: 100 mm
Coil cross-section: 8 mm
Coil length: 375 mm
Rated current: 1000 A
Maximum measurable current: up to 100 kA
Measurement ratio:Calibrated: 50 mV/kA, 85 mV/kA, or 100 mV/kA @ 50 Hz
Uncalibrated: 105 mV/kA @ 50 Hz
Accuracy:Calibrated: < ±0.5 % (center position, 25 °C)
Uncalibrated: < ±5 % (center position, 25 °C)
Linearity: ±0.2 %
Phase error: ≤0.5°
Position error: ≤±1 %
Operating bandwidth: 1 Hz – 100 kHz (−3 dB)
Coil resistance: 100–250 Ω
Output zero offset: ≤0.05 mV
Cable length: 2 m
Operating temperature: −30 °C … +80 °C
Storage temperature: −40 °C … +90 °C
Insulation: 3000 V (coil), 1000 V (signal cable)
Protection class: IP68
Certificates: CE, EMC EN61326-1:2006, CATIII 1000V / CATIV 600V
Housing and materials: Coil – thermoplastic rubber (UL94 V-0); Connectors – PA6 (UL94 V-0)Functions and features
Flexible and compact design: allows installation around cables of various sizes without system shutdown.
Easy installation: the coil is mounted around the wire or busbar.
Compatible with various devices: suitable for energy analyzers, laboratory instruments, data loggers, DIN-rail meters.
Accurate AC current measurement.
Applications
For engineers and automation specialists: suitable for energy monitoring and current analysis using analyzers, meters, or control systems.
For electricians and technicians: used for equipment maintenance, protection testing, phase load balancing, and power consumption monitoring. Can be used without disconnecting the circuit, ideal for maintenance work.
For laboratories and research: suitable for scientific experiments requiring precise current signal measurement over a wide frequency range.
Advantages
Flexible and compact design – easy to use
Simple installation and connection
Resistant to moisture and dust
CE, RoHS, EMC certified
Disadvantages
Does not measure direct (DC) current
Lower mechanical durability
Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.
CE certification means that the product has been evaluated according to the main criteria:
Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purposeCE marking allows this product to:
be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environmentsThe CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.
What does this mean for you as a buyer?
Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions
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