Vintage quality and rare russian two-pole toggle switch type VBT-4 (ВБТ-4) is intended for work in electrical chains of direct and alternating current, for manual switching of low voltage electrical circuits of low power, which do not demand frequent switching. Work algorithm: 4x ON-OFF. VBT-4 switch in an ancestor and direct replacement of the more common TV1-4 (TB1-4) switch. Mounting type: on the panel. Number of contacts: 8. Contact material: silver (5,499 g). Number of contact groups: 4. Number of switching cycles: 10 000. Lever: metallic (black painted aluminium). Weight: 40g. Dimensions are in the picture gallery. Year of production: 1966. New old stock.