MIL-DTL-15291/5B
REQUIREMENTS:
Applicable specification: MIL-DTL-15291.
Dimensions and mounting: See figures 1 through 4.
Switching characteristics: See table I.
Angle of throw: 90 degrees.
Switching action: Snap action, reciprocating.
Electrical and endurance ratings: See table II.
Stop strength (applicable to switches with stops): 100 inch-pounds.
Vibration: 50 Hz, MIL-STD-167-1.
Shock: High impact, MIL-S-901.
Overload: 600 percent of ac rating, 50 make and break operations.
Contact resistance: 0.01 ohms maximum.
Dielectric withstanding voltage: 2,000 V rms.
Insulation resistance: 200 megohms minimum.
Temperature rise: 50°C maximum.
Mounting screws: .250-20UNC-2A (4) length and head style to suit application. Screws not furnished.
TABLE II. Electrical and endurance ratings.
De-energized
Electrical
Test rate
operations
Current
Voltage
operations
(operations
Tests
(number of
(amperes)
(volts)
(number of
per minute)
operations)
operations)
Alternating
10,000
30
current (rms)
20,000
500
30
---
15
15,000
250
30
Direct current
Terminal marking: Terminal markings shall be in accordance with details A through H, as specified in
table I. Terminal markings in table I are as viewed from the front (handle end) of the switch.
Switches not covered by specification sheets: Switches which are fabricated from standard parts, as
used in qualified switches, but which do not comply with switches detailed herein with respect to circuit
characteristics, switching action, mounting arrangement, and handle details may be acquired under this
specification from contractors having qualification approval under this specification.
Extended ratings: Switches detailed herein have been tested and found satisfactory at the extended
rating listed in table III. Reduced life expectancy must be anticipated for switches used at these
increased voltage or current levels. Tests under the conditions of table III are not required for
qualification acceptance and they are not repeated routinely as for maintenance of qualification.
Supplemental evaluations and tests applicable to particular circuit requirements are recommended.
6
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