Open Frame Filters
EMC/EMI filters must often be installed in an electrical or electronic device or case together with other electrical components. As attention is paid to the smallest possible size, there is often insufficient space to integrate standard chassis filters. For this purpose, Schaffner can design internal filters according to your requirements.
Open frame filters are single-phase or multi-phase EMC/EMI filters based on printed circuit boards without case which can be developed and manufactured by us according to your specific requirements. Thereby, you can count on our many years of experience in the EMC/EMI filters area and we will help you to realize your specific requirements and needs. Specifications such as the following are adapted to your technical and commercial desires for internal filters:
- Connection type
- Filter attenuation
- Power rating
- Test requirements
The finished, tested and certified filter module can thus be inserted in your application on time with exact fitting.
Internal EMC/EMI filters can be developed according to the following typical, electrical specifications:
Maximum continuous operating voltage:
520VAC per phase
Number of wires:
1 to 4 wires
dc up to 400Hz
1 to 80A per phase @ 50°C
4x rated current for 1 minute, once per hour
Temperature range (operation and storage):
-40°C to +100°C (40/100/21)
Flammability according to:
UL 94V-2 or better
Design according to:
UL 1283, CSA 22.2 No. 8 1996, IEC/EN 60939
You can rely on our worldwide and many years experience in component development for reducing conducted or radiated electromagnetic interference. Trust a partner who gives you competent support in the EMC area and brings your equipment and systems onto the market on time and economically.