YUEQING HEYI ELECTRICAL CO,LTD
HEYI's vision is leading global split core CT manufacture and energy solution provider.
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HEYI ELECTRICAL CO., LTD is a manufacturer not a middle man, morever HEYI own one strong R&D and QC
team continues to innovate new solutions for customers.
MR range of current transformers are a range (6 standard silicon core models) tape wrapping current transformer
, low cost, widely used in southeast Asia. It can be used with or without foot and plastic cover.
1) With/without base mounting
2) With/without plastic terminal cover
3) Wide inner window, low cost
4) Wide range of sizes to accommodate all the existing installations
| Electrical Parameter | Mechanical Parameter | ||
| Frequency | 50/60Hz | Case | PC/UL94-V0 |
| Rated Input | 1A-1600A | Bobbin | PBT |
| Measuring range | 5%ln-120%ln | Core | Silicon steel |
| Rated Output | 1A, 5A | Construction | Screw |
| Rated Voltage | 0.72KV(AC) | Operating Temp | -25℃ to +75℃ |
| Dielectric strength | 3.0KV/1mA/1min | Operating Humidity | ≤85% |
| Insulation Resistance | DC500V/100MΩmin | Output Connection | Terminal |
| Model | Primary / Secondary | Busbar Hole Dimensions(mm) | Rated Burden (VA) | Accuracy Class | Rated Voltage |
| MR-28 | 50/5A~100/5A | φ=28mm | 1.5~2.5 | 0.5 / 1.0 | 0.72KV(AC) |
| MR-40 | 100/5A~300/5A | φ=40mm | 1.5~5 | 0.5 / 1.0 | 0.72KV(AC) |
| MR-42 | 100/5A~300/5A | φ=42mm | 1.5~5 | 0.5 / 1.0 | 0.72KV(AC) |
| MR-45 | 250/5A~400/5A | φ=45mm | 3.75~7.5 | 0.5 / 1.0 | 0.72KV(AC) |
| MR-60 | 300/5A~800/5A | φ=60mm | 3.75~10 | 0.5 / 1.0 | 0.72KV(AC) |
| MR-70 | 600/5A~1600/5A | φ=70mm | 5~15 | 0.5/1.0 | 0.72KV(AC) |
| MR-85 | 600/5A~1600/5A | φ=85mm | 5~15 | 0.5/1.0 | 0.72KV(AC) |
| MR-125 | 2000/5A~5000/5A | φ=125mm | 15~30 | 0.5/1.0 | 0.72KV(AC) |
Note: The Current Ratio above are common type, that's ok to customise the ration according to
customers' requirement. HEYI ELE. Co.,LTD could provide professional OEM service :)
1) Current measurement, monitoring and protection for electrical wiring and equipment.
2) Current and power measurement for electric motors, lighting, air compressor, heating
and ventilation system, air-condition equipment and automation – control system.
3) Current, power and energy monitoring device.
4) Relay protection device.