MIL-DTL-15291G
FIGURE 2. Test wiring for dc endurance testing of switches, type designation SR3A, characteristic A.
4.7.10 Insulation resistance. The switch shall be tested in accordance with method 302 of MIL-STD-
202. The following details shall apply:
a. Test condition B shall be used.
b. In each switch position, the test voltage shall be applied between open circuit contacts, and
between closed contacts and noncurrent carrying parts.
c. Test potential shall be applied for one minute.
d. The test shall be conducted at a room temperature of approximately 75°F, and at a relative
humidity of approximately 50 percent.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the
contract or order (see 6.2). When packaging of materiel is to be performed by DoD personnel, these
personnel need to contact the responsible packaging activity to ascertain requisite packaging
requirements. Packaging requirements are maintained by the Inventory Control Point's packaging within
the Military Department or Defense Agency, or within the Military Department 's System Command.
Packaging date retrieval is available from the managing Military Department's or Defense Agency's
automated packaging files, CD-ROM products, or by contacting the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not
mandatory.)
6.1 Intended use. The switches covered by this specification are intended for use in power and control
equipment where reliability and ruggedness are required.
6.1.1 Voltage and current ratings. The voltage and current ratings specified in table I are applicable for
the number of operations indicated in tables VIII and IX. Other current and voltage ratings are possible
where the switch will be subjected to fewer operations. Such ratings based on test data are listed as
extended ratings in the specification sheets (see 3.1). The extended ratings are applicable to snap action
switches only.
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