1、 AMSC N/A FSC 5920 INCH-POUND MIL-DTL-24646/8B 29 October 2008 SUPERSEDING MIL-DTL-24646/8A 17 May 2002 DETAIL SPECIFICATION SHEET FUSE BOXES, FEEDER DISTRIBUTION, SUBMERSIBLE, (15 FEET), 125 VOLTS, ALTERNATING CURRENT, THREE PHASE BUSES, SINGLE PHASE BRANCHES, 0-30 AMPERE MIDGET FUSES SYMBOLS 646.1
2、 AND 647.1 This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-24646. FIGURE 1. Fuse box assembly, typical. Item No. 01, 02 (Symbol 646.1
3、 shown) NOTES: 1. Dimensions are in inches. 2. Unless otherwise specified herein, tolerances shall be as follows: Two place decimals - plus or minus 0.02. Three place decimals - plus or minus 0.005.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-
4、DTL-24646/8B 2 DIMENSIONS (REF) SYMBOL NO A B C 646.1 16.38 13.38 5.62 647.1 21.38 13.38 5.62 FIGURE 2. Enclosure, overall dimensions. Item No. 03, 04 (Symbols 646.1 and 647.1) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24646/8B 3 DIMENS
5、IONS (REF) SYMBOL NO A B 646.1 9.25 4.62 647.1 14.25 7.12 FIGURE 3. Mounting dimensions, ref. (Symbols 646.1 and 647.1)Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24646/8B 4 DIMENSIONS (MAX) SYMBOL NO A B C 646.1 7.75 5.75 2.30 647.1 12.6
6、3 5.75 2.30 FIGURE 4. Fuse block assembly, typical. Item No. 05, 06 (Symbols 646.1 and 647.1) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24646/8B 5 A. Four single-phase branches (Symbol 646.1) B. Eight single-phase branches (Symbol 647.1
7、) FIGURE 5. Wiring diagrams. Item No. 07, 08 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24646/8B 6 REQUIREMENTS Symbol numbers: See table I. Design: Electrical rating: 125 volts alternating current, 0-30 ampere, 60 hertz. Dimensions and
8、configuration: See figures 1, 2, 3 and 4. Wiring diagrams: See figure 5. Mounting dimensions: See figure 3. Degree of enclosure: Submersible (15 feet). Designation and marking: See MIL-DTL-24646. Parts: The parts listed in table II and specified in MIL-DTL-24646 shall be used in the construction of
9、the fuse boxes specified herein. General information: Military part numbers and general information are as specified in table I. TABLE I. Military part numbers and general information. Supersedes Military part no. Symbol no. Weight in pounds No. of circuits Feeder MCM Branch MCM Fuse size Bus bar si
10、ze Drawing no. Type M24646/8- 001 646.1 27.8 4 75 14 midget 0-30A 0.62 x 0.25 9000-S-74199 0-8A M24646/8- 002 647.1 33.3 8 75 14 midget 0-30A 0.62 x 0.25 9000-S-74202 0-24A TABLE II. Parts list. QTY M /- Item no. 1/ Description 001 002 Material/ specification Remarks 01 Fuse box assembly (sym 646.1)
11、 - MIL-DTL-24646/8 See fig. 1 02 Fuse box assembly (sym 647.1) - MIL-DTL-24646/8 See fig. 1 2/ 03 Enclosure (10 x 13 x 3) 1 M24142/6-004 See fig. 2 Type A Mod 2/ 04 Enclosure (10 x 18 x 3) 1 M24142/6-006 See fig. 2 Type A Mod 05 Fuse block assembly 1 MIL-DTL-24646/8 See fig. 4 06 Fuse block assembly
12、 1 MIL-DTL-24646/8 See fig. 4 07 Wiring diagram 1 MIL-E-2036 See fig. 5 08 Wiring diagram 1 MIL-E-2036 See fig. 5 09 Fuse clip (midget 0-30A) 16 32 A-A-55507/1-04 N/A 10 Identification plate 1 1 Brass, ASTM B36/B36M B121/B1121M N/A 11 Information plate 4 8 Brass, ASTM B36/B36M B121/B1121M N/A 1/ Ite
13、m numbers after the figure titles are the same as the item numbers shown in this table. 2/ Enclosure is same as MIL-E-24142/6, except for inside depth which is 3 inches instead of 5 inches as shown. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL
14、DTL-24646/8B 7 Referenced documents. In addition to MIL-DTL-24646, this document references the following: MIL-E-2036 MIL-E-24142/6 ASTM B36/B36M ASTM B121/B121M The margins of this specification sheet are marked with vertical lines to indicate where changes from the previous issue were made. This
15、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 content irrespective of the marginal notations and relationship to the la
16、st previous issue. Custodian: Preparing activity: Navy - SH DLA - CC DLA - CC (Project 5920-2008-023) 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-,-,-
