1、AMSC N/A FSC 5925 INCH-POUND MS24571H 21April 2009 SUPERSEDING MS24571G 28 May 2004 MILITARY SPECIFICATION SHEET CIRCUIT BREAKERS, AIRCRAFT, TRIP FREE, 2 TO 50 AMPERES, 121.1C AMBIENT This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirement
2、s for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-27715. FIGURE 1. Dimensions and configuration. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS24571H 2 Inches mm Inches mm .006 0.15 .355 9.02 .01 0
3、25 .417 10.59 .015 0.38 .500 12.70 .031 0.79 .594 15.09 .032 0.81 .72 18.29 .09 2.29 .76 19.30 .12 3.05 .906 23.01 .138 3.51 1.19 30.23 .164 4.17 1.81 45.97 .250 6.35 2.18 55.37 .312 7.92 2.189 55.60 2.37 60.20 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general informat
4、ion only. 3. Unless otherwise specified, tolerances are .005 (0.13 mm) for three place decimals and .01 (0.3 mm) for two place decimals. Angles 1. 4. In the event of a conflict between the text of this standard and the references sited herein, the text of this standard shall take precedence. 5. Refe
5、renced Government documents found listed online at http:/assist.daps.dla.mil/quicksearch/ form a part of this standard to the extent specified herein. 6. Part or Identifying number (PIN): MS24571-2V MS number dash number (see table I and note 7) 7. For dash numbers ending with “V”, the vibration tes
6、t methods shall be as follows: Operating: Method 204, Condition C of MIL-STD-202. Nonoperating: Method 204, Condition B of MIL-STD-202. 8. .250 Min. Typ. clearance from center line of screw to case. 9. The terminals shall not be moveable with respect to case. 10. The terminals shall not be identifie
7、d as to “line” or “load”. FIGURE 1. Dimensions and configuration - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS24571H 3 TABLE I. Electrical and mechanical characteristics. Operating force lbs Endurance cycles Pullout Reset Resistive
8、Inductive Dash number Capacity amperes Voltage drop Max Weight Max lbs Max Min Max Min 1/ 1/ Mech no load -2 -2V 2 0.6 0.2 8 1.5 12 4 -5 -5V 5 0.4 0.2 8 1.5 12 4 -7 -7V 7 0.3 0.2 8 1.5 12 4 -10 -10V 10 0.25 0.2 8 1.5 12 4 5,000 5,000 -15 -15V 15 0.25 0.2 8 1.5 12 4 0.95 .05 0.75 Max 10,000 -20 -20V
9、20 0.25 0.2 8 1.5 12 4 PF Lag PF -25 -25V 25 0.25 0.2 8 1.5 12 4 -35 -35V 35 0.25 0.2 8 1.5 12 4 -50 -50V- 50 0.25 0.2 8 1.5 12 4 1/ 400 Hz 115/200 volt system, tested at 120 5 volts 380 - 420 Hz. TABLE II Detail calibration requirements. Tripping time from -53.9C to +93.3C (time in seconds) Dash Pe
10、rcent rated current number 200 400 1000 3000 Min Max Min Max Min Max Min Max -2 -2V 12 32 2.3 6.5 .32 1.1 .04 .155 -5 -5V 14 36 2.5 6.5 .45 1.1 .06 .13 -7 -7V 16 40 2.5 7.0 .34 1.1 .04 .12 -10 -10V 18 42 2.7 7.75 .45 1.2 .05 .125 -15 -15V 20 45 2.7 8.0 .36 1.2 .04 .13 -20 -20V 20 48 2.7 8.0 .36 1.2
11、04 .12 -25 -25V 20 50 2.7 9.5 .36 1.2 .04 .12 -35 -35V 20 53 2.7 8.0 .36 1.2 .04 .12 -50 -50V 20 55 2.7 10.0 .36 1.4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS24571H 4 TABLE III. Detail rupture current performance. Test condition System Volt
12、age before fault Calibrated fault current (amperes) Transient voltage after fault current interruption Open circuit voltage L-N 400 Hz 115/200 volts 120 5 6,000 amperes during first cycle of fault current decreasing to 3,600 amperes within .05 second after initiation 120 5 L-L 400 Hz 115/200 volts 2
13、00 8 4,200 amperes during first cycle of fault current decreasing to 2,500 amperes within .05 second after initiation 200 8 28 volts dc 30 2 6,000 amperes in .01 to .03 second after initiation 28 volts within .002 second after interruption 50 volts max. 30 2 TABLE IV. Coordination test pairs. Lower
14、rating (amperes) Higher rating (amperes) 2.5 5 5 10 7.5 15 10 20 15 35 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS24571H 5 TABLE V. Coordination trip time. Rating (amperes) Trip time (seconds) at 2000 percent rated current min. 2.5 5 .124 7.50
15、 .088 10 .112 15 .089 20 .103 25 .102 35 .109 50 Nominal voltage rating: 28 Vdc or 115 V line to neutral or 200 V line to 400 Hz Referenced documents. In addition to MIL-DTL-27715, this document references the following: MIL-STD-202 The margins of this specification sheet are marked with vertical li
16、nes to indicate where changes from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire con
17、tent irrespective of the marginal notations and relationship to the last previous issue. Custodians: Preparing activity: Air Force - 85 DLA - CC DLA - CC (Project 5925-2009-001) 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 http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
