Flexible current measuring coil | Rogowski ring | 300A | D24mm | L-97mm | 2m cable | IP68

Technical specifications
Coil length: 97 mm
Inner diameter: 24 mm
Coil cross-section: 6 mm
Rated measuring current: 300 A
Maximum measurable current: 100 kA
Output ratio (calibrated): 50 mV/kA @ 50Hz, 60 mV/kA @ 60Hz
Output ratio (uncalibrated): 60 mV/kA @ 50Hz, 72 mV/kA @ 60Hz
Accuracy:

Calibrated: <0.5% (25 °C, central position)

Uncalibrated: <5% (25 °C, central position)
Linearity: ±0.2% of reading
Phase error: ≤0.5°
Frequency response: 1Hz – 100kHz (-3 dB)
Position error: ±1% max
Output offset (0A): ≤0.05 mV
Coil resistance: 100–250 Ω
Operating temperature: -30…+80 °C
Temperature drift:

Uncalibrated: 200 ppm/°C

Calibrated: 300 ppm/°C
Power connection: 2 m cable
Weight: 80–100 g
Protection class: IP68 

Features and characteristics

Flexible and compact design: easy to install around cables of various sizes without disconnecting the system.

High measurement accuracy: calibrated model ensures <0.5% error.

Wide current range: from a few amperes up to 100,000 A.

Wide frequency range: 1Hz–100kHz.

No saturation effect: unlike traditional CT transformers.

Easy installation: coil secured around wire or busbar with cable ties.

Compatible with various devices: connects to energy analyzers, lab instruments, data loggers, DIN-rail meters.

Shielded against external magnetic fields for stable signal even in noisy industrial environments.

Applications

For engineers and automation specialists: ideal for energy monitoring, current analysis, and integration with control systems.

For electricians and technicians: used for equipment maintenance, protection testing, phase load balancing, and power consumption monitoring. Can be used without disconnecting circuits.

For laboratories and research: perfect for experiments requiring precise current signal measurement across a wide frequency range.

Advantages

Extremely flexible and compact design – fits into tight spaces

High accuracy (<0.5%) in calibrated models

Wide current range up to 100kA

Wide frequency response (1Hz–100kHz)

Resistant to external interference and magnetic fields

Easy installation and connection

No external power supply required (when used with compatible analyzers)

Suitable for both AC and DC systems (with integrator)

Disadvantages

May require an external integrator with some devices

Not resistant to extreme vibration or mechanical pressure