The group switch SSQ 240 (code 002421425) produced by ETI is a modular device used for switching electrical circuits, being ideal for selecting between two power sources (eg: Mains – 0 – Generator).
Main Technical Features
- Number of poles: 2 poles (2P).
- Nominal current (In): 40 A.
- Nominal voltage (Un): 230 V AC.
- Switch type: I-0-II (3 positions, with neutral position in the middle).
- Mounting: On DIN rail (35mm).
- Degree of protection: IP20 (inside).
Functionality
This model allows manual load transfer between two independent power sources or control of two separate circuits. The central position (“0”) ensures complete disconnection of both circuits, providing safety during handling.
Advantages
- Reliability: Constructed of materials resistant to high temperatures.
- Space efficiency: Takes up little space in the electrical panel (2 modules).
- Safety: Firm contacts that prevent accidental arcing during switching under load (within rated limits).
Common Uses
- Backup power systems.
- Direction reversal for small motors.
- Manual selection of the operating mode for various industrial or household equipment.
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