The ETI SSQ 440 3-position switch (code 002421445) is a modular device used in electrical panels for switching between two different power sources or circuits, having a central OFF position.
Main Technical Features
- Function: Toggle switch with center zero position (I-0-II).
- Number of poles: 4P (tetrapolar), ideal for three-phase systems where neutral switching is also required.
- Nominal current: 40A.
- Nominal voltage: 400V AC.
- Connection capacity: Accepts conductors with a section of up to 16mm
- Mounting: On standard 35 mm DIN rail.
- Width: Occupies 4 modules in the electrical panel.
Details of Construction and Use
- Safety: Degree of protection IP20, intended for indoor use.
- Common point: By default, the common point is located at the top of the device.
- Applications: It is frequently used as a source selector to manually switch between the mains and an auxiliary source (eg a generator or UPS system).
- Durability: Designed for a rated frequency of 50/60 Hz and an insulation voltage of 400V.
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