Three-phase Rogowski coil integrator for DIN rail | 100 A | 85 mV/kA @50 Hz | 5 W | 333 mV AC | For AC current measurement | ATP40

Technical Specifications

Type: Three-phase Rogowski coil integrator
Model: ATP40
Number of phases: 3 phases
Mounting: DIN rail (35 mm)
Rated input current: 100 A
Output signal: 333 mV AC RMS (40 mA AC RMS versions also supported)
Coil transfer ratio: 85 mV/kA @ 50 Hz
Measurement accuracy: ±0.5% (from 1% to 100% of rated current)
Frequency bandwidth: 30 Hz – 5 kHz
Power supply: 12 V DC or 24 V DC
Maximum burden: 20 Ω (per phase)
Power consumption: 5 W
Measurement type: AC current only

Functions

Three-phase Rogowski signal integration to 333 mV AC RMS
Safe low-voltage output – ideal for energy metering
Stable and linear signal for each phase
High compatibility with energy meters and analyzers
Neat DIN rail mounting

Applications

Engineer / R&D specialist: An excellent choice for designing three-phase energy metering and monitoring systems, especially when using energy meters with 333 mV inputs. This allows avoiding traditional current transformers and taking advantage of Rogowski coil benefits.

Electrician: DIN rail enclosure, clear phase separation, and standard 24 V DC power supply enable fast and safe installation in new or upgraded electrical panels.

Industrial, energy, and commercial facilities: Used in substations, factories, data centers, shopping malls, and office buildings where reliable three-phase current monitoring and compatibility with modern measurement solutions are required.

Advantages

Three-phase solution in a single module
333 mV AC RMS output – safe and widely supported
DIN rail mounting
High measurement stability and accuracy

Limitations

Fixed rated current
Designed for AC current measurement only
Requires external DC power supply
Not intended for high-frequency laboratory measurements (up to 5 kHz)