ETI SSQ 280 load switch 2P 80A 1-0-2 (2421427)

ETI SSQ 280 is a manual load switch designed for safe switching of electrical circuits between two lines or sources in the 1-0-2 position. It is used in distribution boards, input-distribution assemblies, backup power systems, and other low-voltage installations where load transfer must be performed without automatic tripping. The three-position operating logic provides a clear transition between the first circuit, the OFF position, and the second circuit, which is important for organized circuit selection and isolation. The device is built as a 2-pole unit, making it suitable for single-phase circuits or for simultaneous disconnection of two conductors. Its rated current is 80 A, and the rated AC voltage is 400 V, which places it within standard low-voltage applications. The AC-22B utilization category indicates suitability for switching mixed loads with a minor inductive component, which is typical for many practical distribution tasks. The rated frequency of 50/60 Hz ensures compatibility with common power networks. The switch complies with IEC 60947-3, the standard covering switch-disconnectors, disconnectors, and load switchgear. This is an important reference for installation in technical environments where conformity to recognized electrical equipment requirements is necessary. The connected conductors can have a cross-section of up to 50 mm², allowing the device to be integrated into circuits with corresponding current-carrying requirements and suitable cable terminations. With an IP20 protection degree, the unit is intended for installation inside enclosed electrical cabinets and switchboards, where access to live parts is restricted. The IP20 rating protects against contact with hazardous parts by fingers and solid objects of a similar size, but it is not designed for exposed outdoor mounting. The SSQ 280 series version is therefore a functional solution for manual source selection, load isolation, and circuit transfer in residential, commercial, and industrial low-voltage installations where a straightforward 1-0-2 switching arrangement is required.