MIL-DTL-21604 Switches, Rotary, Multipole And Selector; General Specification ForThis specification covers the general requirements for closed construction rotary multipole and selector switches which are able to make, break, and carry electrical loads up to and including 10 amperes.

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MIL-DTL-21604F

6.5 Type designation. The type designation to be used for switches acquired to this specification is created as

follows (see 3.3.1 and 6.2):

Component

Rotor

Style

Action

Sections

6.5.1 Component. The component designation for rotary switches covered by this specification will be the letter S.

6.5.2 Rotor. The rotor designation will be a single digit indicating the rotor contact configuration in accordance with

figure 2. Rotor configurations 1, 2, 3, and 5 are break-before-make contact arrangements. In changing switch

positions, the closed circuit opens before the open circuit closes. Configuration 4 is a combination break-before-

make and make-before-break.

FIGURE 2. Rotor contact configuration.