Vintage quality russian single-pole toggle switch type TV1-1 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. Mounting type: on the panel. Number of contacts: 4. Contact material: silver. Number of switching cycles: 10 000. Dimensions and additional iinformations are in the attachment. NOS switches made in the 80's.