ETI SSQ 380 load changeover switch 3P 80A 1-0-2 (2421437)

The ETI SSQ 380 is a three-position load changeover switch designed for manual switching of electrical circuits between two operating lines through a neutral 0 position. This operating logic is convenient in installations where it is necessary to select a power source, transfer the load, or perform switching operations in distribution systems without using automatic control. The device belongs to the SSQ 380 series and is intended for installation in load breaker and disconnect switch applications. The switch is built with 3 poles and rated for 80 A, which makes it suitable for three-phase circuits and other installations requiring manual circuit transfer at moderate current levels. It operates at a rated AC voltage of 400 V and a nominal frequency of 50/60 Hz, so it can be used in standard AC networks with either 50 Hz or 60 Hz supply. The AC-22B utilization category indicates suitability for switching mixed resistive and inductive loads, which is important when the circuit includes consumers with varying electrical characteristics. For conductor connection, the device accepts wires with a cross-section up to 50 mm². This allows the use of conductors that match the current load and helps maintain proper electrical installation requirements. The IP20 protection rating means the switch is intended for mounting inside electrical panels, cabinets, or other enclosed switchgear assemblies, where protection against accidental contact with live parts is required, while it is not designed for exposure to open environmental conditions. The product complies with IEC 60947-3, the standard covering switches, disconnectors, and load-break switches. This standard is relevant for installations where predictable switching performance and conformity to electrical equipment requirements are necessary. ETI SSQ 380 is therefore used in industrial and commercial distribution boards, as well as in technical nodes where reliable manual source selection or load transfer is needed without complex automation.