DLA MS21355 REV K-2012 SWITCH TOGGLE POSITIVE BREAK MINIATURE TOGGLE SEALED PRINTED CIRCUIT BOARD TERMINALS DOUBLE POLE 250 MOUNTING BUSHING.pdf

1、 INCH-POUND MS21355K 4 May 2012 SUPERSEDING MS21355J 4 September 1991 DETAIL SPECIFICATION SHEET SWITCH, TOGGLE, POSITIVE BREAK, MINIATURE, TOGGLE SEALED, PRINTED CIRCUIT BOARD TERMINALS, DOUBLE POLE, .250 MOUNTING BUSHING This specification is approved for use by all Departments and Agencies of the

2、 Department of Defense. The requirements for acquiring the products described herein shall consist of this specification sheet and MIL-DTL-8834. FIGURE 1. Dimensions and configuration. AMSC N/A FSC 5930 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,

3、-MS21355K 2 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, tolerances are .010 (0.25 mm) on decimals and 5 on angles. FIGURE 1. Dimensions and configuration - Continued. Provided by IHSNot for ResaleNo reproduction or

4、networking permitted without license from IHS-,-,-MS21355K 3 REQUIREMENTS: For hardware detail specifications, see appendix of MIL-DTL-8834. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification shall take precedence. Refere

5、nced Government documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. Dielectric withstanding voltage: For center on circuits, DWV shall be 1,200 V rms at sea level. 115 V ac 6

6、0 hertz electrical endurance tests are to be performed at room temperature and pressure. Switches shall be rigidly mounted by their normal means on a rigid metal panel and subjected to shock test, method 207 of MIL-STD-202. The switch shall be electrically and mechanically operative at the conclusio

7、n of the test and there shall be no mechanical transfer during the test. Terminals: Gold plated. Suitable for mounting on panels. .062 inches (1.57 mm) maximum thickness. Weight: .0143 pound maximum (6.5 grams). Strength of terminals: 5 pounds normal to the mounting plane and 1 pound in other planes

8、. Altitude: 50,000 feet. Strength of actuator: Lever pivot and lever stop 6 pounds. Terminals need not be marked. Terminal identification is shown for reference purposes only. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21355K 4 TABLE I. Detail

9、 requirements. MS dash no Circuit made between terminals as indicated with the toggle lever in these positions: 1/ Current capacity in amperes Low current level switching 5 mV Resistive load Inductive load 28 V dc 115 V 28 V dc 115 V Opposite locking tab side 4/ Center position Locking tab side 4/ 6

10、0 Hz ac 400 Hz ac 60 Hz ac 400 Hz ac -211 on 2-3 5-6 off on 1-2, 4-5 5 2 3 2/ 1 1 2 3/ 25 A -221 none off -231 on 1-2, 4-5 -241 off none -271 mom-on 2-3, 5-6 mom-on 1-2 4-5 -281 none -311 on 2-3, 5-6 -321 5/ none on 2-3, 5-6 -331 5/ on 2-3, 5-6 2-3 on 4-5 on 1-2, 4-5 -341 5/ mom-on 2-3, 5-6 mom-on 1

11、-2, 4-5 -351 5/ on 2-3, 5-6 1/ Direction of movement of internal mechanism is opposite to the direction of the toggle movement. 2/ With time constant of .020 .002 second. 3/ Contact resistance not to exceed 50 during life, low current level switching. 4/ Non-functional terminals shall not be supplie

12、d. 5/ Delayed action of the switch toggle lever may cause circuit to close or open before snap action mechanism trips. Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Referenced doc

13、uments. In addition to MIL-DTL-8834, this document references MIL-STD-202. Custodians: Preparing activity: Navy - AS DLA CC Air Force - 85 DLA - CC (Project 5930-2011-125) Review activities: Army - MI Navy - EC Air Force - 99 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-