Three-phase Rogowski coil with integrator | coil + integrator + connector | 2000 A | 100 mm | 333 mV / 3 V AC | RJ45 | STP333+NRC-XL-100

Technical Specifications

Type: Three-phase flexible Rogowski coil with integrator (3-in-1)
Model: STP333
Used coil: NRC-XL-100 (can be replaced with another Rogowski coil)
Inner coil diameter: 100 mm
Coil cross-section: 8 mm
Rated current: 2000 A
Output signal: 333 mV AC or 3 V AC
Measurement accuracy: < ±0.5%
Linearity: ±0.2%
Phase error: ≤ 0.5°
Cable length (coil → STP): 2 m
RJ45 cable length: 0.15 m
Connector: Shielded RJ45
Power supply: 5 V DC

Functions

Three-phase current measurement in one set

Integrated Rogowski signal integrator

333 mV or 3 V AC output – compatible with energy meters and analyzers

RJ45 connector – fast and clean connection

Flexible coil – installation without disconnecting cables or busbars

Ready-to-use solution without additional converters

Applications

For engineers / designers: Suitable for three-phase energy monitoring and metering systems, especially when using 333 mV-type energy meters or measurement modules. The integrated integrator reduces system complexity and the risk of errors.

For electricians: Clearly marked phases, flexible coils, and an RJ45 connector allow quick installation even in confined electrical panels. No need for a separate integrator or additional wiring.

For industrial, energy, and commercial facilities: Suitable for production plants, substations, shopping centers, data centers, as well as temporary or diagnostic measurements requiring a quick-connect solution up to 2000 A.

Advantages

3-in-1 solution – coil + integrator + connector

High accuracy and low phase shift

Selectable 333 mV / 3 V AC output

Fast and safe non-invasive installation

Compact and portable solution

Disadvantages

Fixed rated current – 2000 A

AC current measurement only

5 V DC power supply required

RJ45 connector requires proper cable management in industrial environments