1、AMSC N/A FSC 5930 INCH-POUND MS21027R 5 October 2011 SUPERSEDING MS21027P 4 September 1991 DETAIL SPECIFICATION SHEET SWITCH, TOGGLE, POSITIVE BREAK, LEVER LOCK, MINIATURE TOGGLE SEALED, SOLDER LUG, DOUBLE POLE, .469 MOUNTING BUSHING This specification is approved for use by all Departments and Agen
2、cies of the 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. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS2102
3、7R 2 FIGURES A THROUGH L ILLUSTRATE THE LOCKING AND MOMENTARY CONFIGURATION AND NOT THE DETAIL CONSTRUCTION OF THE LOCKING DESIGN FIGURE 1. Dimensions and configuration - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21027R 3 Inches mm
4、 Inches mm Inches mm .002 .003 .005 .012 .016 .024 .025 .030 0.05 0.08 0.13 0.30 0.41 0.61 0.64 0.76 .032 .045 .047 .052 .072 .169 .338 .430 0.81 1.14 1.19 1.32 1.83 4.29 8.59 10.97 .432 .438 .469 .480 .556 .572 .706 .983 10.97 11.13 11.91 12.19 14.12 14.53 17.93 24.97 NOTES: 1. Dimensions are in in
5、ches. 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. REQUIREMENTS: For hardware detail specifications, see appendix of MIL-DTL-8834. In the eve
6、nt of a conflict between the text of this specification and the references cited herein, the text of this specification shall take precedence. Shock: Method I and method II (high impact). The switch shall be electrically and mechanically operative at the conclusion of the shock test except there can
7、 be mechanical transfer of the contact mechanism at all levels when tested in accordance with method II (high impact). Toggle seal test: Method I for 700 and 800 series, method II for 200 and 300 series. Part or Identifying Number (PIN) shall consist of MS number, locking combination letter and dash
8、 number. Example PIN: MS21027-B211: Toggle sealed, on-off-on, locked in center position. MS21027-K281: Toggle sealed, none-off-momentary on, locked in center position. Strength of terminals: 5 pounds normal to the mounting plane and 2 pounds in the other planes. Altitude: 50,000 feet. 115 V ac, 60 h
9、ertz electrical endurance tests are to performed at room temperature and pressure. Maximum weight: .0640 pound (29.0 grams). Unlocking force: 4 1 pound. Configuration of switch case housing, terminals, and barriers: Design optional providing maximum dimensions specified are not exceeded. Provided by
10、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21027R 4 TABLE I. Detail requirements. MS dash number 1/ Locking combi- nation Circuit made between terminals as indicated with the toggle lever in these positions: 5/ Current capacity in amperes Low current lev
11、el switching 5 mV Resistive load Inductive load 28 volts 115 volts 28 volts 115 volts Opposite keyway side 8/ Center position Keyway side 8/ 60 Hertz ac 400 Hertz ac 60 Hertz ac 400 Hertz ac -711 -211 A, B, D on 2-3, 5-6 off on 1-2, 4-5 5 2 3 1 6/ 1 2 25 A 7/ -721 -221 C, E none off -731 -231 on 1-2
12、, 4-5 -741 -241 J, B off none -771 4/ -271 4/ F, H mom-on 2-3, 5-6 off mom-on 1-2, 4-5 -781 4/ -281 4/ K none -811 -311 G, K, L on 2-3, 5-6 -821 2/ 3/ -321 K none on 2-3, 5-6 mom-on 1-2, 4-5 -831 2/ 3/ -331 A, B, C, and D on 2-3, 5-6 on 2-3, 4-5 on 1-2, 4-5 -841 2/ 3/ -341 F, H mom-on 2-3, 5-6 on 2-
13、3, 4-5 mom-on 1-2, 4-5 -851 2/ 3/ -351 G, K, L on 2-3, 5-6 on 2-3, 4-5 mom-on 1-2, 4-5 -871 -371 F, H mom-on 2-3, 5-6 off mom-on 1-2, 4-5 -881 -381 K none off mom-on 1-2, 4-5 1/ 700 and 800 series toggle seal (water) 15 foot head; 200 and 300 series toggle seal (water) .500 inch head. 2/ Delayed act
14、ion of the switch toggle lever may cause circuit to close or open before snap action mechanism trips. 3/ Dielectric withstanding voltage: 1,200 V rms at sea level (center on circuits). 4/ PIN -771, -781, -271, and -281 are inactive for new design, use -871, -881, -371, and -381. 5/ Direction of move
15、ment of internal mechanism is opposite to the direction of the toggle movement. 6/ With time constant of .020 .002 second. 7/ Contact resistance not to exceed 50 during life, low current level switching. 8/ Nonfunctional terminals shall not be supplied. Provided by IHSNot for ResaleNo reproduction o
16、r networking permitted without license from IHS-,-,-MS21027R 5 Referenced documents: MIL-DTL-8834 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. Custodians: Preparing activity: Arm
17、y - CR DLA - CC Navy - AS Air Force - 85 (Project 5930-2011-074) DLA - CC 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-,-,-
