Import 3000a Flexible Current Sensor With Integrator — Buy in wholesale FOB from Supplier in China

The FQ-RCTA02 is a Rogowski coil flexible current sensor with integrated electronic amplifier modules, designed for installation in confined spaces without dismantling primary busbars or cables. It measures up to 3000A AC with output scaling options of 3000A/3V, 6000A/3V, 600A/3V, 300A/3V, 60A/3V or 30A/3V, achieving 1% of reading accuracy across a model range extending from 1A to 100,000A RMS. The coil probe signal passes through integration processing within the electronic module, producing a voltage output directly usable by oscilloscopes, digital multimeters and data loggers. The system carries a safety rating of 600V CAT IV and 1000V CAT III per EN 61010.

Rogowski coil sensors operate on air-core principles without magnetic saturation, offering linear response from milliampere levels to hundreds of kiloamperes. The integrator electronics compensate for the coil's inherent differentiator characteristic, reconstructing a voltage waveform proportional to the measured primary current. The flexible coil wraps around irregular shapes, cable bundles and wide busbars that rigid iron-core CTs cannot accommodate. Phase shift is described as lower than competing flexible sensors, though no numerical value is quoted. Typical Rogowski systems exhibit phase errors from 0.5° to 2° at power frequencies, with performance heavily dependent on integrator design and temperature stability.

Electrical contractors, switchgear manufacturers and power quality consultants use these sensors for temporary monitoring, retrofit installations and space-constrained applications. The lightweight coil eliminates the mechanical load and positioning constraints of traditional clamp CTs. Output options of 3V full-scale suit modern power analysers and portable oscilloscope inputs. Buyers should confirm coil length, outer diameter and minimum bend radius for their specific installation geometry, and verify whether the integrator requires external power or derives supply from the output connection. Calibration certificates, output impedance specifications and temperature drift coefficients should be requested before procurement.

Beijing Gfuve Electronics Co., Ltd. operates from 01117-8 Fortune Street, No.67 Chaoyang Road, Beijing 100025, China, with its registered office in the Chaoyang district of the capital. The supplier is classified as imported tier with harbor trust tier status, reflecting basic platform verification without advanced assurance. The response metrics show no recorded replies to buyer enquiries, with a 0.00% response rate and zero average response hours. This communication gap represents a significant due diligence concern for buyers evaluating supplier reliability for technical product support and after-sales service.

The company lists flexible current measurement technology in its product portfolio, positioning the FQ-RCTA02 for applications where conventional solid-core or split-core CTs prove impractical. No information is disclosed regarding manufacturing floor area, engineering staff complement, patent holdings, or client reference installations. The address indicates a commercial location rather than a dedicated industrial park facility. Buyers should independently verify factory capability through video inspection, request evidence of design control procedures, and seek confirmation of whether Gfuve performs coil winding and integrator calibration in-house or sources sub-assemblies from third parties.