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TR11
MEASURING OR PROTECTION CT SUITABLE FOR PHASE OR HOMOPOLAR (CORE BALANCE CT) PROTECTION
- Epoxy resin encapsulated closed core transformer
- Moulded self estinguishing plastic housing
- Suitable for medium voltage applications on insulated single or multiple cables
100% MADE IN ITALY
| Standard technical features | |
|---|---|
| Highest voltage for equipment Um (phase to phase) | 0,72 kV |
| Rated power frequency withstand voltage | 3 kV rms / 1min |
| Insulating class | E |
| Rated primary current (Ipr) | from 30 to 2.000 A |
| Rated secondary current (Isr) | 1 or 5 A |
| Rated frequency (fR) | 50 or 60 Hz |
| Instrument security factor (FS) | 5 or 10 |
| Rated continuous thermal current (Icth) | 1,2 In |
| Rated short time thermal current (Ith) | up to 25kA / 1sec |
| Rated dynamic current (Idyn) | 2,5 Ith |
| Rated burden | from 1 to 20 VA |
| Accuracy class | 0,5 - 1 - 3 - 5P |
| Use | for indoor |
| Operating temperature range | - 25 … + 40 °C |
| Storage temperature range | - 40 … + 85 °C |
| Housing material | polycarbonate selfestiguishing accoding UL94 V0 |
| Insulation material | epoxy resin |
| Protection degree (EN 60529) | IP20 |
| Secondary terminals | 2 screw terminals M5 with hex nuts |
| Terminal cover | standard and sealable |
| Fixing system | screws for wall or base mounting |
| Reference standards | IEC61869 |
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