Table of Contents
3-ph current transformer
Split core current transformer 50A - 400A
| Model number: | CT-3-E-50 | 50A |
|---|---|---|
| CT-3-E-75 | 75A | |
| CT-3-E-100 | 100A | |
| CT-3-E-250 | 250A | |
| CT-3-E-300 | 300A | |
| CT-3-E-400 | 400A | |
| Connect to: | PM3-E-D-CT | |
| terminals 15 - 20 | ||
| Mounting: | on wire | |
- Split core
- Safe operation
- Small size
- Very easy mounting
- Wide inner window
General description
The CT-3-E-50 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
| 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 |