LF Current Transformer Prototyping Kit
Sixteen low-frequency powder-coated nanocrystalline toroids, two of each size from 13.5 mm to the 80 mm class, for metering and current-transformer R&D. This series is 50,000 μi with published AL.
Kit price
Compare-at is the sum of 1-pc list prices ($7.45 kit savings vs buying singles).
In stock for online purchase
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What's in the box
Sixteen blue powder-coated nanocrystalline toroidal cores (2 of each size below).
| Qty | SKU | Description | Dimensions | 1-pc list |
|---|---|---|---|---|
| 2 | CCNT-013P5-007P5-004P5-LFBL | Nanocrystalline toroidal core 13.5×7.5×4.5 mm | 13.5×7.5×4.5 mm | $0.84 |
| 2 | CCNT-020-012-010-LFBL | Nanocrystalline toroidal core 20×12×10 mm | 20×12×10 mm | $0.72 |
| 2 | CCNT-025-016-010-LFBL | Nanocrystalline toroidal core 25×16×10 mm | 25×16×10 mm | $1.62 |
| 2 | CCNT-030-018-010-LFBL | Nanocrystalline toroidal core 30×18×10 mm | 30×18×10 mm | $1.44 |
| 2 | CCNT-040-032-015-LFBL | Nanocrystalline toroidal core 40×32×15 mm | 40×32×15 mm | $4.86 |
| 2 | CCNT-050-035-020-LFBL | Nanocrystalline toroidal core 50×35×20 mm | 50×35×20 mm | $4.50 |
| 2 | CCNT-065-038-025-LFBL | Nanocrystalline toroidal core 65×38×25 mm | 65×38×25 mm | $6.48 |
| 2 | CCNT-080-050-030-LFBL | Nanocrystalline toroidal core 78.6×50×30 mm | 78.6×50×30 mm | $5.76 |
Who it's for
- Metering and protection CT design engineers
- Low-frequency current-sensing labs
- Teams comparing powder-coated LF toroids before a production SKU
Typical use cases
- Low-frequency metering CT size selection
- Protection and relay CT window trials
- GFCI-style 40×32 mm window checks on the LF series
- High-current CT steps at 65 mm and 80 mm class
How to use
Start with the 20 mm or 25 mm core for most small CTs. Use the 40×32 mm core when the window has to clear a larger conductor. Step to the 50 mm, 65 mm, and 80 mm class cores when VA or pass-through current rises. The 80 mm class core is stocked at a bare OD of 78.6 mm. After a size wins, reorder that LFBL SKU in packs.
FAQ
How is this different from the CT Current Transformer Prototyping Kit?
The CT kit is the mid-frequency PBT ladder at 80,000 μi, from 16 mm to 50 mm. This kit is the low-frequency powder-coated ladder at 50,000 μi, from 13.5 mm through the 80 mm class, with published AL on each size.
How many cores are in this kit?
Sixteen blue powder-coated toroids: two of each of eight sizes.
What happens after I pick a winning size?
Reorder that single catalog SKU in pack quantities (or request a production-gapped cut core). Kits are for size and gap exploration, not a substitute for locking a production part number.
Do kits ship with datasheets?
Each included SKU has its own product page with dimensions, AL, and photos. Open the linked part numbers in the contents table for datasheets and specs.
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Ready for production volumes after you lock a size? Request a quote for that SKU or browse pack pricing on each product page.