Large-Aperture Sensing Core Kit
Thin, large-ID nanocrystalline toroids from 48 mm to 86 mm OD for pass-through current sensing and residual-current trials. Two of each smaller core, and one each of the larger windows. Finishes include PBT cases, crepe tape, and one powder-coated ring.
Kit price
Compare-at is the sum of 1-pc list prices ($13.31 kit savings vs buying singles).
In stock for online purchase
Set quantity with +/-, then add to cart. Use the cart icon in the header to review items before checkout.
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What's in the box
Eight nanocrystalline toroidal cores: two each of the 48 mm and 54 mm sizes, and one each of the four larger windows.
| Qty | SKU | Description | Dimensions | 1-pc list |
|---|---|---|---|---|
| 2 | CCNT-048-040-008-STBK | Nanocrystalline toroidal core 48×40×8 mm | 48×40×8 mm | $10.26 |
| 2 | CCNT-054-038-005-STBN | Nanocrystalline toroidal core 54×38×5 mm | 54×38×5 mm | $11.16 |
| 1 | CCNT-059-052-005-STBL | Nanocrystalline toroidal core 59×52×5 mm | 59×52×5 mm | $20.88 |
| 1 | CCNT-065-055-010-STBK | Nanocrystalline toroidal core 65×55×10 mm | 65×55×10 mm | $16.38 |
| 1 | CCNT-086-076-015-STBN | Nanocrystalline toroidal core 86×76×15 mm | 86×76×15 mm | $31.86 |
| 1 | CCNT-086-077-010-STBK | Nanocrystalline toroidal core 86×77×10 mm | 86×77×10 mm | $20.34 |
Who it's for
- Residual-current and ground-fault sensing engineers
- Large-cable CT designers
- Labs that need pass-through windows beyond 50 mm
Typical use cases
- Large-cable current transformer trials
- Residual-current sensor window selection
- Pass-through sensing from 48 mm to 86 mm OD
- Comparing thin large-ID cores by finish and height
How to use
Use the 48 mm and 54 mm cores for compact large-ID sensing. Step to 59 mm, 65 mm, and 86 mm when the cable needs more window. Compare the 86×76 mm crepe-tape core with the 86×77 mm PBT core when height and finish matter at the same outer size.
FAQ
Why are the finishes mixed?
These sizes are stocked in the finish that fits the build: PBT cases, crepe tape, and a powder-coated 59×52×5 mm ring. The kit is a window ladder for sensing. Each product page states the finish.
How many cores are in this kit?
Eight toroids: two of the 48 mm PBT core, two of the 54 mm crepe-tape core, and one each of the 59 mm, 65 mm, and two 86 mm cores.
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.