Outdoor busbar-type current transformer, rated voltage 0.66kV. Designed for low voltage outdoor distribution systems. Rated frequency 50Hz or 60Hz. Ambient temperature range -25°C to +40°C. Compliant with IEC 61869 and GB/T 20840 standards. Outdoor design with weather-resistant construction. Busbar through-core installation, easy to mount on low voltage busbars. Used for current measurement and protection in LV systems.
Outdoor busbar-type CT for 0.66kV LV systems; suitable for metering and protection in outdoor distribution.
| Parameter | Specification | Verification |
|---|---|---|
| Product Type | Current Transformer | IEC 61869, GB/T 20840 |
| Model Code | LMZJ1-0.66W | Factory nameplate marking |
| Primary Voltage | 0.66kV | Rated voltage test (IEC 61869-1/3) |
| Secondary Voltage | [On Request] | Ratio check at rated frequency |
| Accuracy Class | [On Request] | Accuracy test (IEC 61869-2 / IEEE C57.13) |
| Rated Burden | [On Request] | Burden test at rated VA |
| Insulation Type | Dry Epoxy Resin | Dielectric tests per standard |
| Insulation Level (BIL) | [On Request] | Power-frequency & lightning impulse withstand |
| Standards | IEC 61869, GB/T 20840 | Certified to listed standards |
| Frequency | 50/60Hz | Per IEC 61869-1 |
| Environment | Outdoor busbar-type through-core; Ambient: -25°C ~ +40°C | Per datasheet limits |
Ideal For
Not Recommended For
connect secondary terminals 1S1 and 1S2 for metering; if a protection winding exists, use 2S1-2S2. Never open-circuit the secondary of a CT while energized - hazardous voltage. Ground the secondary circuit at one point only.
Compliant with: IEC 61869, GB/T 20840
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q: What is the rated voltage of this CT?
A: 0.66kV.
Q: Is it suitable for outdoor installation?
A: Yes, it is designed for outdoor use with weather-resistant construction.
Q: What standards does it comply with?
A: IEC 61869 and GB/T 20840.
Missing fields are marked [On Request] — never fabricated. M2/M5/M6 verification rows follow IEC 61869 / IEEE C57.13 conventions.
| Model | Rated primary current (A) | Rated output (VA) | ||
|---|---|---|---|---|
| 0.2 | 0.5 | 1 | ||
| LMZ1-0.66W | 5-200 | — | 5 | 10 |
| LMZ1-0.66W | 300-400 | 2.5 | 5 | 10 |
| LMZJ1-0.66W | 500-1200 | 5 | 10 | 10 |
Dimension & outline drawing of LMZJ1-0.66W — click image to zoom / view original.
