AC current sensors from 15A to 10,000A
Packet Power offers a wide range of AC current sensors to meet your power monitoring needs.
- Split core CTs - 15A to 4000A
- Solid core CTs - 30A to 400A
- Rogowski coils - 100A to 10,000A
- Pre-wired CT harnesses that fit in even the tightest spaces
- Loose CT leads in a variety of lengths for any installation
Split core CTs
Split core CTs can be opened and placed around the conductor without having to disconnect the conductor or disrupt power. Split core CTs are more expensive than solid core CTs but the added convenience makes them the preferred choice for retrofit installations.
| Inside Diameter | Rated Amperage (A) |
| 10 mm | 15, 30, 50 |
| 16 mm | 100 |
| 24 mm | 100, 200, 300 |
| 36 mm | 200, 300, 400, 600 |
| 50 x 50 mm | 400, 600, 800 |
| 75 x 125 mm | 300, 600, 800 |
| 150 x 150 mm | 800, 1000, 1200, 1600, 2000, 3000, 4000 |
Contact Packet Power for additional current ratings.
Solid core CTs
Solid core CTs feature a permanently closed core. Installing a solid core CT requires disconnecting the conductor to pass it through the CT core. Solid core CTs are a cost effective solution when service disruption is not an issue.
| Inside diameter | Rated Amperage (A) |
| 9 mm | 35 |
| 15 mm | 60 |
| 32 mm | 200, 400 |
Contact Packet Power for additional options.
Rogowski coil sensors
The most versatile of current sensor options, Rogowski coils are flexible enough to fit around irregularly-shaped conductors and minimize disruption to service during installation. Packet Power offers a variety of coil lengths.
| Inside diameter | Coil length | Typical Amperage |
| 68 mm | 250 mm | 100A to 1000A |
| 147 mm | 500 mm | 400A to 3000A |
| 211 mm | 700 mm | 1000A to 5000A |
| 306 mm | 1000 mm | 2000A to 10,000A |
Contact Packet Power for additional options.
CT wire harnesses
Flexible, preconfigured wire harnesses can cut installation time in half and fit into tight spaces inside panels.
The wire harnesses accommodate side-by-side, inline or DIN mount panels with 19-25 mm (3/4" to 1") center-to-center breakers. They are ideal for use when all circuits in a panel will be monitored.
Wire harnesses arrive already connected to the CT Interconnect Board. The wire harness leads are labeled and end in a quick disconnect that makes it easy to add CTs immediately or over time.
Wire lengths and lead labels vary by harness type. CTs are sold separately.
Top down
Bottom up
Sequential
Mid
Common harness placements
Panel types vary widely by the number of breaker positions and how they are arranged. Packet Power flexible CT wire harnesses can accommodate any breaker configuration. Simply identify the number of CTs, the type of panel and where you will place the CT Interconnect Boards in relation to the circuits being measured.
Here are the most common harness placements by panel type and the corresponding CT harness type.
In cases where a wire harness doesn't work such as when circuits being measured are not evenly spaced, loose CT leads can be used.
Contact info@packetpower.com for additional wire harness options.
A range of CT options to meet any need
