ETI SSQ 163 load changeover switch 1-0-2 1P 63A (2421416)

ETI SSQ 163 is a manual load changeover switch designed for switching electrical circuits between three positions: 1-0-2. This operating logic makes it suitable for selecting one of two power sources or for disconnecting a line to the neutral position, which is useful in distribution boards, control assemblies, and other low-voltage installations where direct manual switching is required instead of automatic control. The device has 1 pole and is rated for a nominal current of 63 A at 230 V AC. Such parameters make it applicable in single-phase circuits where reliable changeover between sources or operating modes is needed. The AC-22B utilization category indicates suitability for switching mixed resistive and inductive loads, which is typical for many residential and commercial electrical systems. The switch operates at 50/60 Hz, so it can be used in networks with the most common supply frequencies. Connection of conductors with a cross-section up to 50 mm² provides compatibility with power circuits that require larger conductor sizes and secure current-carrying connections. Compliance with IEC 60947-3 confirms that the device belongs to low-voltage switching and disconnection equipment and is intended for operation under standardized electrical conditions. The IP20 ingress protection rating means the switch is protected against contact with hazardous live parts and is intended for installation inside enclosed electrical panels or similar dry indoor environments. The SSQ 163 series designation helps identify the product within ETI’s switching device range and supports selection for projects where a three-position manual load changeover function is required. Overall, this 1-0-2 switch is a functional solution for manual source selection, line disconnection, and simple load routing in single-phase systems. Its 63 A rating, 1-pole construction, AC-22B category, and support for conductors up to 50 mm² define its use in compact but power-oriented electrical assemblies.