1、 AMSC N/A 1 of 5 FSC 5945 DISTRIBUTION STATEMENT A. Approved for public release, distribution is unlimited. INCH-POUND MS24187N 15 April 2003 SUPERSEDING MS24187M 8 March 1993 DETAIL SPECIFICATION SHEET RELAYS, ELECTROMAGNETIC, 50/25 AMPERES, 1 PDT (N.O./N.C.), TYPE II, NON-HERMETICALLY SEALED This
2、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. Provided by IHSNot for ResaleNo
3、reproduction or networking permitted without license from IHS-,-,-MS24187N 2 Inches mm Inches mm Inches mm .010 0.25 .230 5.84 1.875 47.62 .016 0.40 .250 6.35 2.062 52.37 .062 1.57 .343 8.71 2.187 55.55 .093 2.36 .400 10.16 2.250 57.15 .125 3.18 .500 12.70 2.525 64.14 .138 3.51 .625 15.88 2.812 71.4
4、2 .190 4.83 1.062 26.97 3.143 79.83 .214 5.44 1.781 45.24 NOTES: 1. Dimensions are in inches. 2. Unless otherwise specified, tolerance is .061 (1.57 mm). 3. Metric equivalents are given for general information only. 4. Additional flat washer may be used for terminal seat. 5. In the event of a confli
5、ct between the text of this specification and the references cited herein, the text of this specification shall take precedence. 6. Referenced Government documents of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitat
6、ion form a part of this standard to the extent specified herein. 7. Cadmium or cadmium compounds are prohibited on external hardware. A transition period to non-cadmium hardware is authorized for up to 1 year from the date of this revision. 8. Spring washer on drawing is a spring lock washer. FIGURE
7、 1. Dimensions and configuration - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS24187N 3 REQUIREMENTS: Dimensions and configuration: See figure 1. Dash numbers and general characteristics: See table I. Contact data: Load ratings: See
8、table II. Maximum contact drop, initial: 0.150 V. After life test: 0.175 V. Overload current NO: 400 amperes; NC: 200 amperes. Rupture current NO: 500 amperes; NC: 250 amperes. Coil data: See table III. Duty rating: Continuous. RFI specification: MIL-STD-461 (applicable to coil circuits of ac operat
9、ed relays). Electrical data: Minimum insulation resistance: Initial: 100 megohms. After life or environmental test: 50 megohms. Dielectric strength: Sea level, 2-5 seconds: Initial After life tests 28 V dc 115 V ac 28 V dc 115 V ac Coil to case 1,250 V N/A 1,000 V N/A Aux contacts 1,250 V N/A 1,000
10、V N/A All other points 1,250 V 1,250 V 1,000 V 1,000 V Dielectric strength (altitude): 1 minute. Initial 28 V dc 115 V ac Coil to case 500 V 700 V Aux contacts 500 V 700 V All other points 500 V 700 V Environmental characteristics: Temperature range: -55C to + 71C. Maximum altitude rating: 50,000 fe
11、et. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS24187N 4 Shock g-level: (NO) 25 gs, (NC) 15 gs. Duration: 6-9 ms. Maximum duration contact opening: 2 ms. Vibration - sinusoidal: See table IV. Vibration - random: Not applicable. High shock: Not
12、applicable. Acceleration: 10 gs. TABLE I. PIN and general characteristics. Part number MS24187- Type Coil type Terminal type Mounting or mating socket Auxiliary contacts Maximum weight in pounds D1 and D2 II dc Stud Bracket None 0.66 TABLE II. Rated contact load (amperes per pole) case grounded. 1/
13、28 V dc 115 V ac, 1 phase 115/200 V ac, 3 phase 2/ Main Aux Main Aux Main Aux Type of load Life operating cycles x 103NO NC NO NC 400 Hz 60 Hz 400 Hz 60 Hz 400 Hz 60 Hz 400 Hz 60 Hz See appro-priate notes Resistive 50 50 25 25 Inductive 10 50 25 Motor 50 50 25 Lamp Transfer load 3/ Mechanical life r
14、educed current 4/ 12.5 6.3 6.3 5/ Mixed loads 50 5 5 5 5/ 1/ Normally closed contacts shall operate 20 percent of the maximum operating cycles for the motor load test. For resistive load tests, the normally open contacts shall be cycled with the rated dc resistive load and the normally closed contac
15、ts shall be cycled with the rated ac resistive load. For no other load tests shall both sets of contacts be cycled simultaneously. It is not required that the relay operate when the contact enclosure is removed. Contact enclosures of MS24187 relays shall be provided with resilient gaskets at mating
16、surfaces and shall prevent entrance of all airborne particles of sand and dust. 2/ Absence of value indicates relay is not rated for three phase applications. 3/ Transfer load indicates relay is suitable for transfer between unsynchronized ac power supplies at rating indicated. 4/ Mechanical life: 1
17、00,000 cycles for MS24187-D1 and 500,000 cycles for MS24187-D2. 5/ Normally open only. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS24187N 5 TABLE III. Operating characteristics. Coil data Time - milliseconds maximum 2/ Rated Max Max pick-up vol
18、tage Bounce Main Aux PIN MS 24187- Coil Volts 1/ Freq Hz Res +10 -15 % at 25C Volts Amp Nor- mal 2/ High temptest Cont cur-rent test Hold vol-tage 2/ Drop out vol-tage 2/ Oper-ate 3/ Rel-ease 4/ NO NC NO NC D1 X1,X2 28 dc 94.2 29 0.36 18 21 22.5 9.0 1.5 20 15 5.0 10 - - D2 X1,X2 28 dc 94.2 29 0.36 1
19、8 21 22.5 9.0 1.5 20 15 5.0 10 - - 1/ CAUTION: Use of any coil voltage less than rated coil voltage will compromise the operation of the relay. 2/ Over the temperature range. 3/ With rated coil voltage. 4/ From rated coil voltage. TABLE IV. Vibration levels (sinusoidal). Frequency PIN MS24187- 5-10
20、Hz 10-55 Hz 55-250 Hz 250-500 Hz 500-1,500 Hz D1, D2 .08 DA .06 DA 2 gs 2 gs N/A Part or Identifying Number (PIN): MS24187- (plus applicable dash number from table I). Qualification by similarity: See MIL-PRF-6106. Supersession data: See table V. TABLE V. Supersession data. Superseding (new) Superseded (old) MS24187-D2 AN3353-1 MS24187-D2 AN3353-2 Custodians: Preparing activity:NAVY - AS DLA - CC Air Force - 11 DLA - CC (Project 5945-1196) Review activities: Navy - EC Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
