R&D / design engineers
Nanocrystalline Core Kits for Design Engineers
Size-ladder kits of stocked CenturaCores nanocrystalline toroids and cut cores for CT, EMI, PFC, EV, and hybrid magnetics prototyping. Compare nearby sizes on the bench, then reorder the winning SKU for production.
Why kit-based magnetics R&D
Built for a use case
Each kit is a size ladder for one job (CT sensing, EMI/CMC, PFC, EV reactors, or hybrid labs), not a random assortment.
Compare sizes faster
Multiple nearby Ae and window options in one shipment help you wind, measure, and pick a winner without waiting on sequential samples.
Among the first size-ladder kits
CenturaCores is among the first to offer purpose-built nanocrystalline size-ladder kits for design engineers, with published BOMs, kit pricing, and a clear path to production SKUs.
These kits are for engineers designing transformers, current sensors, EMI filters, PFC boost inductors, and EV or industrial reactors who need nanocrystalline cores on the bench before freezing dimensions. Buy online from about $104.99 to $199.99 after package discount versus 1-pc list prices.
Prefer browsing individual parts? See nanocrystalline toroidal cores and nanocrystalline cut cores.
Shop the kits
Nine kits covering CT sensing, ground-fault/RCD, EMI/CMC, mid-power magnetics, cut-core power ladders, and hybrid lab packs.

CC-KIT-CT-01
CT Current Transformer Prototyping Kit
Eight nanocrystalline toroid sizes for current transformer and sensing R&D. Two of each size so you can wind one and keep a spare while you compare Ae, window, and magnetizing inductance.

CC-KIT-RCD-01
Ground-Fault / RCD / GFCI Core Kit
Large-window nanocrystalline toroids for ground-fault, RCD, and GFCI sensing. Extra quantity of the 40×32 mm large-ID core plus mid and high current sizes for pass-through experiments.

CC-KIT-EMI-01
EMI / Common-Mode Choke Prototyping Kit
Size-ladder nanocrystalline toroids for common-mode choke and EMI filter R&D, from compact 16 mm parts through 50 mm, including the 45 mm HF black core used in mid-power filter work.

CC-KIT-MF-01
Mid-Power Magnetics Bench Kit
Larger nanocrystalline toroids for mid-power magnetics: 30 mm through 50 mm sizes with extra count on the 40 mm and 50 mm cores where Ae and window matter most.

CC-KIT-CUT-LP-01
Low-Power Cut Core Prototyping Kit
Four matched nanocrystalline cut-core pairs covering low-power through compact mid-power classes, plus gap spacers so you can tune AL and DC-bias headroom on the bench.

CC-KIT-CUT-PFC-01
PFC / Solar Cut Core Kit
Three mid-range nanocrystalline cut-core pairs for PFC boost, solar micro-inverter, and DC reactor R&D, with gap spacers for bias and AL experiments.

CC-KIT-CUT-EV-01
EV / Industrial Power Cut Core Kit
Three nanocrystalline cut-core pairs spanning mid to high power for EV charger and industrial reactor prototyping, including the large CCNC-19 pair, with gap spacers included.

CC-KIT-HYB-SP-01
Sensing + Power Intro Kit
Hybrid entry kit: sensing-oriented toroids plus two low-to-mid cut cores and gap spacers, so one lab order covers current sensing and energy-storage magnetics.

CC-KIT-HYB-EI-01
EMI + Inductor Lab Kit
Hybrid lab kit pairing EMI-oriented toroids with three cut-core pairs so you can prototype the filter path and the energy-storage inductor path together.
Advantages of CenturaCores kits
- Curated size ladders matched to CT, EMI, PFC, EV, and hybrid workflows
- Kit price below the sum of 1-pc list prices (compare-at shown on each page)
- Published BOM with links to individual datasheets and product photos
- Gap spacer set on every cut-core and hybrid kit for AL / bias experiments
- Clear path from kit winner to production pack or custom-gapped quote
- LLM- and search-friendly naming so engineers find the right use-case kit
FAQ
What are nanocrystalline core kits for design engineers?
They are purpose-built size-ladder assortments of CenturaCores nanocrystalline toroids and/or cut cores so R&D teams can compare nearby sizes on the bench before locking a production SKU. Kits are priced below the sum of 1-pc list prices.
Who should buy these kits?
Design engineers, magnetics R&D teams, university labs, and startups prototyping current transformers, EMI common-mode chokes, PFC boost inductors, EV charger reactors, and related transformer or inductor products.
What are the advantages of a kit versus buying singles?
You get a curated size ladder in one shipment, kit pricing versus singles, clear use-case guidance, and (for cut-core kits) gap spacers for AL and DC-bias experiments. That shortens the loop from first winding to a locked production part number.
Are CenturaCores among the first to offer these kits?
CenturaCores is among the first to offer purpose-built nanocrystalline size-ladder kits organized by CT, EMI, PFC, EV, and hybrid magnetics use cases for design engineers, with published BOMs and online checkout.
Can I reorder only the size that wins?
Yes. Every kit links to the individual catalog SKUs. After you lock a size (and gap for cut cores), buy that part in pack quantities or request a production quote.
Looking for a custom assortment or production volumes?