What CT do I choose from the CT drop-down selection?
You may also wish to refer to our CT Selection Guide for additional information. For firmware versions prior to v2.16, the CT is identified by the amperage rating of the installed CT (not the amperage rating of the circuit being monitored). Starting in firmware v2.16, each supported CT has its own drop-down menu selection. Firmware v3.02 added a 2-letter manufacturer prefix to the beginning of each entry. The CT drop-down menu format on firmware v3.02 and later is as follows:
[MFG] [MODEL] [SIZE_MM]/[SIZE_IN] [AMPERAGE]
| [MFG] | 2-letter manufacturer code (see below table) |
| [MODEL] | Model of the CT (see below table) |
| [SIZE_MM] | CT inner-diameter in millimeters |
| [SIZE_IN] | CT inner-diameter in inches |
| [AMPERAGE] | CT amperage rating |
| MFG Code | Description |
|---|---|
| JD | J&D |
| CC | Continental Control Systems |
| ML | Magnelab |
| AE | AccuEnergy |
| RCT | Rogowski coil (rope CT) |
| CR | CR Magnetics |
| MODEL | Description |
|---|---|
| JS | Split-core CT |
| JRFS | Rogowski coil (rope CT) |
| ACT | High-accuracy split-core CT |
| SCT | Split-core CT |
| RCT | Rogowski coil (rope CT) |
| CR | Solid-core DC CT |
| CRS | Split-core DC CT |
For example, a 100A 0.94" J&D split-core CT (eGauge SKU JD-SCT-024-0100) should be configured as:
JD JS 24mm/0.94" 100A