Indoor epoxy cast LV current transformer, State Grid standard, primary rated current 800-1500A, accuracy 0.2S/0.5S.
LMZ4D-SKX1 is a 0.66kV indoor current transformer with 800-1500A primary, 5A secondary, accuracy 0.2S/0.5S, ideal for low-voltage metering and protection. It is not suitable for outdoor or high-voltage applications.
| Parameter | Specification | Verification |
|---|---|---|
| Product Type | Current Transformer | [On Request] |
| Model Code | LMZ4D-SKX1 | Factory nameplate marking |
| Primary Voltage | 0.66kV | Rated voltage test (IEC 61869-1/3) |
| Secondary Voltage | 5A | Ratio check at rated frequency |
| Accuracy Class | 0.2S/0.5S | Accuracy test (IEC 61869-2 / IEEE C57.13) |
| Rated Burden | 10VA | 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 | [On Request] | Certified to listed standards |
| Frequency | 50/60Hz | Per IEC 61869-1 |
| Environment | [On Request] | Per datasheet limits |
Ideal For
Not Recommended For
Connect primary terminals P1/P2 in series with the line. Secondary terminals are 1S1/1S2 for the main winding; if dual ratio, use 2S1/2S2 for the second winding. Never open-circuit the secondary of a CT while energized - hazardous voltage. Ground the secondary winding at one point. Ensure the secondary burden does not exceed 10VA. Follow IEC 61869-2 and IEEE C57.13 conventions.
Compliant with: [On Request]
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q: What is the primary current range of LMZ4D-SKX1?
A: The primary current range is 800-1500A.
Q: What accuracy class does this CT offer?
A: It offers 0.2S/0.5S accuracy class.
Q: Can this CT be used outdoors?
A: No, it is designed for indoor use only.
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 class | Rated output (VA) 0.5 class | Primary turns |
|---|---|---|---|---|
| LMZ1D-SKX1 | 75 | 5 | 5 | 1 |
| LMZ2D-SKX2 | 100-150 | 5 | 5 | 1 |
| LMZ3D-SKX1 | 200-600 | 5 | 5 | 1 |
| LMZ4D-SKX1 | 600-800 | 5 | 10 | 1 |
| LMZ4D-SKX1 | 800-1500 | 5 | 10 | 1 |
Dimension & outline drawing of LMZ4D-SKX1 — click image to zoom / view original.
