1、AMSC N/A 1 of 5 FSC 5945 INCH-POUND MS27254H 27 November 2003 SUPERSEDING MS27254G 10 Feb 1989 DETAIL SPECIFICATION SHEET RELAYS, ELECTROMAGNETIC, 10 AMPERES, 4 PDT TYPE I, PLUG-IN, HERMETICALLY SEALED INACTIVE FOR NEW DESIGN AFTER 5 JUNE 1987. NO SUPERSEDING SPECIFICATION. FOR NEW DESIGN, USE MIL-P
2、RF-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.Provide
3、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27254H 2 Inches mm Inches mm Inches mm .001 0.03 .156 3.96 .630 16.00 .002 0.05 .157 3.99 .734 18.64 .004 0.10 .210 5.33 .921 23.39 .005 0.13 .230 5.84 1.047 27.38 .031 0.79 .281 7.14 1.078 28.58 .040 1.02 .
4、314 7.98 1.140 28.96 .047 1.19 .315 8.00 1.359 34.52 .062 1.57 .362 9.19 1.437 36.50 .105 2.67 .420 10.67 .144 3.66 .524 13.31 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, tolerance is .010 (0.25 mm). 4. Terminal num
5、bers need not appear on relay headers provided there is affixed to the relay a suitable legible circuit diagram that identifies each terminal location specified. 5. Pins to be perpendicular to header within one inch. 6. The use of diodes on ac relays is optional. Actual application must be shown on
6、label. 7. 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. 8. Referenced Government documents of the issue listed in that issue of the Department of Defense Index of specifications and standards (DoDISS) sp
7、ecified in the solicitation form a part of this specification to the extent specified herein. 9. Gasket shall provide a reliable seal between the relay and mating socket that will meet the environmental, operational, and interface requirements of the relay with the mating socket. The gasket shall ha
8、ve shore hardeness 20 5, thickness .047. Gasket material according to AMS 3332 has been considered acceptable. FIGURE 1. Dimensions and configurations - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27254H 3 TABLE I. Dash numbers and c
9、haracteristics. Dash number MS27254- Type Coil Terminal type Max weight in pounds 1 I ac Plug-in .20 2 I dc Plug-in .20 TABLE II. Operating characteristics. Coil data Time - (milliseconds maximum) Nominal Max Max pick-up voltage Contact Bounce Main AuxPart no. MS 27254- Coil Volts 1/ Freq Hz Res Vol
10、ts Amp Nor- mal 2/ High temptest Cont cur-rent test Hold vol- tage 2/ Drop out volt- age 2/ Oper-ate 3/ Rel-ease 4/ NO NC NO NC 1 ac 115 400 N/A 120 .04 90 95 103 30 5 15 30 3 5 - - 2 dc 28 dc 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 volt
11、age will compromise the operation of the relay. 2/ Over the temperature 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
12、 operating cycles x 103 NO NC NO NC 400 Hz 60 Hz 400 Hz 60 Hz 400 Hz 60 Hz 400 Hz 60 Hz See appropriate notes Resistive 100 10 10 10 10 Inductive 50 10 10 10 10 e 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 100 Applicable per spec
13、ification 1/ Absence of value indicates relay is not rated for 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. Provid
14、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27254H 4 Environmental characteristics: Temperature range: -70C to +125C. Maximum altitude rating: 80,000 feet. Shock g-level: 25 gs. Duration: 11 ms. Max duration contact opening: 10 s. Vibration - sinusoi
15、dal: G-level: 20 gs. Frequency range: 10 - 2,000 Hz. Vibration - 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 o
16、r environmental tests: 50 megohms. Dielectric strength (sea level): 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 1,125 V rms Dielectric strength (altitude): Initial After life tests Coil to case N/A 250 V rms Aux contacts N/A All oth
17、er points N/A 350 V rms Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27254H 5 Maximum contact drop initial: 0.150 volt. After life test: 0.175 volt. Overload current: 40 amperes dc, 60 amperes ac. Rupture current: 50 amperes dc, 80 amperesac. Du
18、ty 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 qual
19、ification 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/quicksearch o
20、r 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, 15096
21、-0001. http:/www.sae.org STANDARDS Department of Defense MIL-STD-461 - Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment Society of Automotive Engineers (SAE) SAE-AMS3332 - Silicone Rubber Extreme Low-Temperature Resistant, 15-30 Custodians: Pre
22、paring activity:NAVY - AS DLA - CC Air Force - 11 DLA - CC (Project 5945-1221-17) Review activities: Navy - 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-,-,-
