1、AMSC N/A 1 of 6 FSC 5945 INCH-POUND MS27255K 27 November 2003 SUPERSEDING MS27255H 10 Feb 1989 DETAIL SPECIFICATION SHEET RELAYS, ELECTROMAGNETIC, 10 AMPERES, 4 PDT TYPE I, SOLDER HOOKS, HERMETICALLY SEALED INACTIVE FOR NEW DESIGN AFTER 5 JUNE 1987. NO SUPERSEDING SPECIFICATION. FOR NEW DESIGN, USE
2、MIL-PRF-83536/15, 16, 17. This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the relay described herein shall consist of this specification and the latest issue of MIL-PRF-6106. FIGURE 1. Dimensions and configuration.Pr
3、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27255K 2 FIGURE 1. Dimensions and configurations - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27255K 3 Inches mm Inches mm Inches mm .
4、001 0.03 .230 5.84 1.093 27.76 .005 0.13 .250 6.35 1.140 28.96 .031 0.79 .312 7.92 1.187 30.15 .040 1.02 .315 13.87 1.359 34.52 .062 1.57 .546 15.88 1.396 35.46 .117 2.97 .679 17.25 1.437 36.50 .144 3.66 .718 18.24 1.446 36.73 .150 3.81 .921 23.39 1.718 43.64 .156 3.96 1.047 26.59 .218 5.54 1.078 27
5、.38 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). 4. Terminal numbers need not appear on relay headers provided there is affixed to the relay a suitable legible circuit diagram that iden
6、tifies each terminal location specified. 5. The use of diodes on ac relays is optional. Actual application must be shown on label. 6. In the event of a conflict between the text of this standard and the references cited herein, the text of this standard shall take precedence. 7. Referenced Governmen
7、t documents of the issue listed in that issue of the Department of Defense Index of specifications and standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. TABLE I. Dash numbers and characteristics. Dash number MS27255- Type Coil Terminal
8、 type Mounting Or mating socket Max weight in pounds 1 I a Solder hook Bracket .20 2 I dc Solder hook Bracket .20 3 I ac Solder hook Bracket .20 4 I dc Solder hook Bracket .20 FIGURE 1. Dimensions and configurations - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted wi
9、thout license from IHS-,-,-MS27255K 4 TABLE II. Operating characteristics. Coil data Time - (milliseconds maximum) Nominal Max Max pick-up voltage Contact Bounce Main AuxPart no. MS 27255 Coil Volts 1/ Freq Hz Res Volts Amp Nor- mal 2/ High temptest Cont cur-rent test Hold vol- tage 2/ Drop out volt
10、- age 2/ Oper-ate 3/ Rel-ease 4/ NO NC NO NC -1 and -3 a 115 400 N/A 120 .04 90 95 103 30 5.0 15 30 3 5 - - -2 and -4 dc 28 N/A 160 29 .20 18 19.5 22.5 7 1.5 10 10 3 5 - - 1/ Caution: Use of any coil voltage less than nominal coil voltage will compromise the operation of the relay. 2/ Over the tempe
11、rature range. 3/ With nominal coil voltage. 4/ From nominal coil voltage. TABLE III. Rated contact load (amperes per pole) (case grounded). 28 V dc 115 V ac, 1 phase 115/200 V ac, 3 phase 1/ Main Aux Main Aux Main Aux Type of load Life operating cycles x 103 NO NC NO NC 400 Hz 60 Hz 400 Hz 60 Hz 400
12、 Hz 60 Hz 400 Hz 60 Hz See appropriate notes Resistive 100 10 10 10 10 Inductive 10 10 Inductive 50 10 10 Motor 100 5 5 5 5 2/ Lamp 100 3 3 3 3 2/ Transfer load 3/ Mechanical life reduced current 400 2.5 2.5 Mixed loads Applicable per specification 1/ Absence of value indicates relay is not rated fo
13、r 3 phase applications. 2/ 100,000 operations - on NO contacts, and 50,000 operations on NC contacts at 28 V dc. 3/ Transfer load indicates relay is suitable for transfer between unsynchronized ac power supplies at rating indicated. Provided by IHSNot for ResaleNo reproduction or networking permitte
14、d without license from IHS-,-,-MS27255K 5 Environmental characteristics: Temperature range: -70C to +125C. Maximum altitude rating: 80,000 feet. Shock g-level: 50 gs. Duration: 11 ms. Max duration contact opening: 10 s. Vibration - sinusoidal: G-level: 20 gs. Frequency range: 10 - 2,000 Hz. Vibratio
15、n - random. Applicable specification N/A. Power spectral density N/A. RMS G min N/A. Frequency range N/A. Curve N/A. High shock N/A. Acceleration: 15 gs. Electrical characteristics: Insulation resistance, initial: 100 megohms. After life or environmental tests: 50 megohms. Dielectric strength (sea l
16、evel): Initial After life tests Coil to case 1,000 V rms 1,000 V rms Aux contacts N/A N/A All other points 1,500 V rms 1,000 V rms 1/ Dielectric strength (altitude): 80,000 ft Coil to case N/A 250 V rms Aux contacts N/A All other points N/A 350 V rms 1/ Dielectric rating may be improved by suitable
17、insulation of terminals and wiring after installation. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27255K 6 Maximum contact drop initial: 0.150 volt. After life test: 0.175 volt. Overload current: 40 amperes dc. Rupture current: 50 amperes dc.
18、Duty rating: Continuous. RFI specification MIL-STD-461. (Applicable to coil circuits of ac operated relays.) Conformance inspection: Performance of groups B and C tests are not applicable. Group A acceptance reports shall be submitted to the qualifying activity on a yearly basis in order to retain q
19、ualification for this military specification sheet. Qualification by similarity: See MIL-PRF-6106. NOTES Referenced documents. In addition to MIL-PRF-6106, this specification sheet references the following documents. (Government documents are available on line at http:/assist.daps.dla.mil/quicksearc
20、h or www.dodssp.daps.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094). Society of Automotive Engineers documents are available from the Society of Automotive Engineers 400 Commonwealth Drive Warrendale, Pennsylvania, United States, 15
21、096-0001. http:/www.sae.org STANDARDS Department of Defense MIL-STD-461 - Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment Custodians: Preparing activity:NAVY - AS DLA - CC Air Force - 11 DLA - CC (Project 5945-1221-18) Review activities: Navy
22、- EC 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 ASSIST Online database at www.dodssp.daps.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
