2 pole 21 position ceramic rotary switch
The switches have been manufactured in Russia for military. Rotary Switches turning with really old "electric-ceramic" boards. Designed for use in high-and low-frequency AC and DC currents in electronic equipment. PGK are manufactured for all temperate and cold climates. All contacts are evenly distributed in a circle at 30 degrees.
There is a mechanical limiter (a pin) that could easily convert this switch (example, from 11 throw to any throws you like - from 2 to 11 throw switch, or from 5 throw to any throws you like - from 2 to 5 throw switch). This is a high quality ceramic rotary switch with silver plated contacts/soldering terminals. Very low contact resistance.
Ceramic rotary switch have 2 poles 21 positions/throws.
Contact resistance, max ohm: 0.02
Dielectric Strength, V rms: 1500
The moment of switching, N*m: from 0.39 to 1.17
Insulation resistance, at least MoM: 5000
Capacity of not more than, pF:
- contact between - 1.5
- between terminals and case - 5
Operating temperature range, C: from -60 to 85
Shaft diameter, mm: 6
Long life, throws: over 5000
Minimum operating time, h: 10 000
Silver plated contacts terminals: 0,14285 g
Electrical switching mode:
DC active: 350V, 3A, 70W
DC inductive: 350V, 3A, 15W
AC active: 350V, 3A, 70W
More info about ceramic rotary swichers here.