Zinc plated steel housed resistors SRF - SFM - SFMP
Construction and execution
The resistors in “flat” galvanized metal housing are so called because they use enclosures between 13 mm and 20 mm high, which can be mounted using dedicated holes or supports.The resistive elements consist of a resistive wire wound on ceramic supports or resistive spirals inserted in suitable ceramic parts: in both cases the resistive element thus obtained is then assembled in the respective metal housings and insulated by inorganic fillers resistant to temperatures higher than 450°C.
Resistors in a flat metal housing have a medium level of environmental protection (IP33) and can be equipped with thermoswitches that can be positioned both internally and/or externally to the housing.
The characteristic application of this family of resistors is braking.
Features
- Power range from 55 W up to 550 W
- Resistance range 1,8 Ω up to 10 kΩ