Features
- Highly accurate, true RMS measurement. Compatible with SCRs and VFDs
- Self powered from the 4 - 20 mA loop.
- Robust construction, compact size and easy wiring.
- Ideal for Control and Energy Management applications.
Applications
The i-Snail-A transducer offers inexpensive yet accurate true RMS monitoring of AC current in one circuit.
This product is ideal as a precision AC load transducer for Control and Energy Management applications.
Combined with a standard 5A CT the loop powered i-Snail-A provides a convenient tool for accurate load monitoring in any electrical equipment.
Product Description
The i-Snail-A is a precision current transducer that performs true RMS current measurements in one AC circuit wired through an interfacing CT mounted on the top of the enclosure.
The i-Snail-A may be ordered for various current ranges. The 0-5A and 0-10A current ranges feature a precision CT providing 0.3% accuracy (full scale). Other standard ranges include 25A, 50A and 100A. The i-Snail-A may be calibrated for other input ranges upon request. The 5A calibrated i-Snail-A can be applied to the secondary wire of a 5A CT thus extending the metering range as required.
The i-Snail-A is powered from the 4 -20 mA current loop (it acts as a two wire loop device). It will accept a wide range of loop excitation voltages, typically 24 VDC. The ETA1.420 unit is hermetically potted in a small plastic enclosure equipped with two mounting holes. A barrier strip terminal is provided for the output wiring.
The i-Snail-X does not include a built in CT and is equipped with spade connectors allowing remote installation of various Elkor miniature CTs (MCTA and MSCT).
Specifications
| Power | Standard 4-20mA loop; voltage 8 - 35 VDC | ||
| Input | Current input through CT up to calibrated Range. Unit may be used as a secondary to 5A CT for higher input ranges. i-Snail-X: external CT | ||
| Output | 4-20 mA loop (sinking); max. impedance 750 R @ 24VDC (barrier strip terminal provided) | ||
| Accuracy | TRMS, 0.3% FS for 0-5A & 0-10A range, 0.5% for other ranges. | ||
| Enclosure | Potted plastic box (L=3", W=1.1", H=0.5" + CT Height), panel mount ready. Interfacing CT permanently attached on the top (except i-Snail-X version); Dielectric test (input/output) - 4 kVRMS | ||
Ordering Information
| Input Range | Part Number | Accuracy (full scale) | Window Size | Maximum Wire Size | |
|---|---|---|---|---|---|
| 0-5A | i-Snail-A-5 | 0.3% | 6.9mm (0.272") | AWG #10 | |
| 0-10A | i-Snail-A-10 | ||||
| 0-25A | i-Snail-A-25 | 0.5% | 6.9mm (0.272") | AWG #10 | |
| 0-50A | i-Snail-A-50 | 0.5% | 14.5mm (0.570") | AWG #2 | |
| 0-100A | i-Snail-A-100 | ||||
| Universal (External CT) |
i-Snaill-X (External CT type and FS Range must be provided) |
0.3% + CT Accuracy | N/A | (Depends on CT) | |
