4–5 · Specification & Installation

Unified Product Specification & Installation Topologies

One product exists: the Black laser-engraved Denka® Platinum Plate. All specifications, laboratory results and field data apply to it.

4 · Specifications

4.1	Product	Denka® Platinum Plate (Black Laser-Engraved)
4.2	Function	Passive high-frequency conducted-noise filter
4.3	Dimensions	50 mm × 25 mm × 3.5 mm
4.4	Weight	approx. 21 g
4.5	Material	Ni-Zn ferrite / sintered ceramic composite (grade DT400L), black laser-engraved
4.6	Design band	150 kHz – 30 MHz (CISPR 11 conducted-emission band)
4.7	HF attenuation	13–15% (≈1.2–1.4 dB) per plate at 25–30 MHz — KU Leuven / EnergyVille, Nov 2022
4.8	Self-heating	≤ 0.4 °C under high-frequency noise absorption
4.9	Electrical	High-resistivity ceramic; no galvanic connection to conductors
4.10	Temperature rating	None
4.11	Maintenance	None — no consumables or moving parts; chemically stable ceramic
4.12	Environmental	Non-radioactive, asbestos-free, halogen-free, RoHS compliant
4.13	Lifespan & warranty	25+ Years
4.14	Guarantee	90-Day Result-Conditioned Money-Back Guarantee

SCOPE

Scope: Denka® Platinum Plates are a high-frequency filter. They complement, and do not replace, IEEE 519 low-order harmonic filters and capacitor power-factor correction.^{[1[1] IEC CISPR 11:2024Industrial, scientific and medical equipment — Radio-frequency disturbance characteristics — Limits and methods of measurement.,2[2] IEEE Std 519IEEE Standard for Harmonic Control in Electric Power Systems (low-order harmonics).]}

5.1 · Distribution-level installation

On phase-conductor outputs of circuit breakers feeding non-linear loads (VFDs, rectifiers, SMPS panels, PV inverters). Limits propagation of HF emissions into the wider network.

5.2 · Motor-level installation (bearing protection)

On motor cables at the drive output to suppress HF common-mode currents that would otherwise discharge through motor bearings.^{[11[11] Liu, 2014Bearing currents in inverter-fed motors.,12[12] Erdman et al., 1996Effect of PWM inverters on AC motor bearing currents and shaft voltages. IEEE Trans. Industry Applications.,13[13] ABB Technical Guide No. 5Bearing currents in modern AC drive systems.]}

5.3 · Safety protocol

NFPA 70E

Clip-on retrofit with zero rewiring and no galvanic connection. Installed by qualified personnel per local switchgear safety regulations (e.g. NFPA 70E) during routine maintenance windows.^{[17[17] NFPA 70EStandard for electrical safety in the workplace.]}

5.4 · Plate allocation rule

Plate quantities are never quoted from a catalogue. They come from a site survey or the site's single-line diagram (SLD) — very large plants can need thousands of plates — and every plan is built panel by panel.

Which panels

Only end-user (EU) panels are fitted — the panels whose breakers feed electrical loads directly. Panels that distribute to other panels (MDBs, SMDBs) are not fitted.

1 / phase / conductor · ≥ 60 A

Unit rule: 1 Denka® plate per phase conductor on each breaker rated about 60 A and above. Parallel conductors on the same phase each receive their own plate.

A
All outgoing breakers below 60 A
Fit the panel's principal (incoming) breaker only — it covers every circuit in the panel.
B
Mixed: some 60 A and above, some below
Fit each breaker of 60 A and above individually, and fit the principal breaker to cover the smaller circuits.
C
All outgoing breakers 60 A and above
Fit every outgoing breaker. The principal breaker is not fitted, because every circuit is already covered.

NOTE

Plan the whole site from the SLD or a survey, then apply the rule panel by panel with the panel planner in Engineering tools. → Panel planner (end-user panel)