3-ph current transformer []

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====== 3-ph current transformer ======

**Split core current transformer 50A - 400A **

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{{ wiki:20_rdc_charger:03_hardware:ct_main_picture.png |}}

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| Model number: ^ CT3-E-50  |  50A  |
| :::           ^ CT3-E-100 |  100A  |
| :::           ^ CT3-E-250 |  250A  |
| :::           ^ CT3-E-400 |  400A  |
| Connect to:   | [[wiki:20_rdc_charger:15_hardware:21_pm3-ct|PM3-E-D-CT]]                 ||
| :::           | terminals 15 - 20                                   ||
| Mounting:     | on wire                                             ||


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  * Split core
  * Safe operation
  * Small size
  * Very easy mounting
  * Wide inner window

===== General description =====

The CT-3-E-xx split core current transformer is designed for fast and easy installation. The split core design permits non-contact current measurements through magnetic field induction without requiring that the primary wire be taken off line and disconnected for CT installation. This method permits a safer easy and portable current measurement. An internal precision burden resistor across the secondary winding of the CT provides a safe low voltage output and permits safe opening of the secondary circuit.

===== Technical specifications =====

|< 50% 50% >|
| Frequency                 |                                      50-60 Hz |
| Rated current             |                                    50 A -400 A|
| Accuracy                  |         ±1% from 20% to 120% of rated current |
| Phase angle               |   less than 2 degrees at 50% of rated current |
| Insulation voltage        |                                       600 VAC |
| Maximum primary voltage   |                5000 VAC (insulated conductor) |
| Dielectric strength       |                               2.5 kV/1mA/1min |
| Operating temperature     |                                   -15 to 60°C |
| Operating humidity        |                                        < 85 % |
| Case material             |                                    PC/UL94-V0 |
| Bobin                     |                                           PBT |
| Core                      |                                     Permalloy |
| Internal structure        |                                         Epoxy |
| Leads                     |                 UL 1015, Twisted pair, 22 AWG |