We will be updating the DC ripple filtration specification with the upcoming release of the new A75D(E) Microprocessor Controlled SCR battery chargers to optimize consistent performance. The revised A75D will be a "filtered" charger while the A75DE will still be a "filtered-eliminator". Also, Single and 3-phase A75D(E) chargers will meet the same ripple filtering standards.
The A75D "filtered" (Single or 3-Phase) meets the following per NEMA PE-5:
- 12/24/48Vdc filtered 1% ripple without battery / (30mVRMS with battery)
- 125/130Vdc filtered 2% ripple without battery / (100mVRMS with battery)
The A75DE "filtered-eliminator" (Single or 3-Phase) meets the following per NEMA PE-5:
- 12/24/48Vdc filtered eliminator 30mVRMS ripple without battery
- 125/130Vdc filtered 100mVRMS ripple with battery
Since La Marche is participating in the IEEE adoption and revision of NEMA PE-5, IEEE-P2405, La Marche may revise the above filtration standards to stay ahead of the pack. Watch the La Marche newsletter for the most up to date information on IEEE-P2405.