The product
Denka® Platinum Plate
Black Laser-Engraved
A single, precision-engineered plate of Ni-Zn ferrite / sintered ceramic composite (grade DT400L). There is one Denka® product — and every specification, laboratory result and field case on this site applies to it.
One product. One finish. Every application.
50 × 25 × 3.5 mm · 21 g · Ni-Zn ferrite ceramic DT400L
- Product
- Denka® Platinum Plate (Black Laser-Engraved)
- Function
- Passive high-frequency conducted-noise filter
- Dimensions
- 50 mm × 25 mm × 3.5 mm
- Weight
- approx. 21 g
- Material
- Ni-Zn ferrite / sintered ceramic composite (grade DT400L), black laser-engraved
- Design band
- 150 kHz – 30 MHz (CISPR 11 conducted-emission band)
- HF attenuation
- 13–15% (≈1.2–1.4 dB) per plate at 25–30 MHz — KU Leuven / EnergyVille, Nov 2022
- Self-heating
- ≤ 0.4 °C under high-frequency noise absorption
- Electrical
- High-resistivity ceramic; no galvanic connection to conductors
- Temperature rating
- None
- Maintenance
- None — no consumables or moving parts; chemically stable ceramic
- Environmental
- Non-radioactive, asbestos-free, halogen-free, RoHS compliant
- Lifespan & warranty
- 25+ Years
- Guarantee
- 90-Day Result-Conditioned Money-Back Guarantee
Where it is installed
Distribution level
On the phase-conductor outputs of circuit breakers feeding non-linear loads — VFDs, rectifiers, SMPS panels and PV inverters — to stop HF noise spreading through the network.
Motor level
On motor cables at the drive output, to suppress the HF common-mode currents that damage bearings.
Safe retrofit
Clip-on, zero rewiring, installed by qualified personnel under local switchgear safety rules (e.g. NFPA 70E) during routine maintenance windows.
What it does — and what it does not
Denka® is a high-frequency filter for the 150 kHz – 30 MHz band. It complements, and does not replace, IEEE 519 low-order harmonic filters and capacitor power-factor correction.
25+ Years
Product lifespan & warranty
90-Day
Result-Conditioned Money-Back Guarantee
Results are verified on your own meters with IPMVP Option B/C. If the agreed result is not met within 90 days, you get your money back.