ETI SSQ 140 load switch 1-0-2 1P 40A (2421415)

ETI SSQ 140 is a three-position load switch intended for manual switching of electrical circuits in the positions 1-0-2. Such a device is used in distribution boards and other switchgear assemblies where it is necessary to select between two power sources or to disconnect a circuit through a neutral off position. This operating principle is suitable for circuits that require clear source separation and controlled changeover without simultaneous connection of lines. The device is designed as a 1-pole unit with a rated current of 40 A and a rated AC voltage of 230 V. These electrical ratings make it appropriate for single-phase circuits in residential and general industrial applications. The rated frequency of 50/60 Hz allows use in common mains systems. With an IP20 degree of protection, the switch is intended for installation inside enclosed electrical cabinets and other protected mounting areas where there is no direct exposure to moisture or dust. The SSQ 140 series supports connection of conductors with a cross-section up to 16 mm², which simplifies integration with appropriately sized power cables and conductors. This is an important parameter when selecting equipment for current-carrying circuits, since it helps ensure compatibility with the planned wiring. Compliance with IEC 60947-3 confirms that the unit belongs to low-voltage switching and disconnection apparatus designed for control and isolation of electrical circuits. In practical use, the ETI SSQ 140 is suitable for backup power switching, source transfer, local circuit control, and other electrical installations where a manual three-position switch is required. Its defined electrical characteristics, single-pole design, and switchgear-oriented application make it a convenient choice for inclusion in distribution panels and similar low-voltage systems. The model combines the functions needed for safe and organized circuit changeover in a compact format for panel mounting applications.