1、 AMSC N/A FSC 5920 INCH-POUND W-F-1814/7D 15 November 2013 SUPERSEDING W-F-1814/7C 27 July 2009 FEDERAL SPECIFICATION SHEET FUSE, CARTRIDGE, HIGH INTERRUPTING CAPACITY, CLASS J (CURRENT-LIMITING) 600 VOLTS, 61-100 AMPERES The General Services Administration has authorized the use of this federal spe
2、cification, by all federal agencies. The complete requirements for procuring the fuses described herein shall consist of this document and the latest issue in effect of W-F-1814. Ltr Inches mm Ltr Inches mm Min Max Min Max Min Max Min Max A 4.530 4.710 115.06 119.63 G .500 - 12.70 - B 3.570 3.690 90
3、.68 93.73 H .715 .785 18.16 19.94 C 2.590 2.650 65.89 67.31 J 1.000 (REF) 25.40 (REF) D .50 (REF) 12.70 (REF) K .122 .128 3.10 3.25 E .276 .286 7.01 7.26 L - 1.120 - 28.45 F .380 .440 9.65 11.18 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Unle
4、ss otherwise specified, tolerances are .02 (0.51 mm) for two-place decimals and .005 (0.13 mm) for three-place decimals. FIGURE 1. Configuration and dimensions. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-W-F-1814/7D 2 REQUIREMENTS: Interface and
5、 physical dimensions: See figure 1. Physical: Nonrenewable. Terminals: Knife blade type: Material: Brass, copper, or copper alloy. Strength: 20 pound-inches torque between body and knife blades. Body: Insulating material: Ceramic, melamine-impregnated glass fiber, or the equivalent. Electrical: Volt
6、age: 600 volts or less. Frequency: 48 Hz to 60 Hz. Current: See table I. Current carrying capacity: 100 percent indefinitely with temperature rise not to exceed 55C above ambient on the ferrules. Overload interrupt: Shall interrupt within 2 hours at 135 percent of rated current and within 8 minutes
7、at 200 percent of rated current. Interrupting capacity rating: 200,000 amperes rms symmetrical at 600 volts, 60 Hz and a power factor of 20 percent or less. Closing angle shall be essentially at the zero of the voltage wave (maximum offset) or later, to produce start of arcing within 30 electrical d
8、egrees prior to system peak voltage. Threshold ratio: 30 maximum. Maximum peak let-thru current: See table I. Maximum clearing I2T: See table I. Applicable fuseholders: Class J for blade type fuses in accordance with UL 4248-8. Part or Identifying Number (PIN): See table I. TABLE I. Electrical chara
9、cteristics. 1/ Government PIN Current rating (amperes) Maximum peak let-thru current amperes Maximum clearing I2T x 103WF1814/07-001 70 11,500 50 WF1814/07-002 80 12,500 60 WF1814/07-003 95 13,500 75 WF1814/07-004 100 14,000 80 1/ For silver plated terminals, the designator “S“ is added after the da
10、sh number. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-W-F-1814/7D 3 Referenced documents. In addition to W-F-1814, this document references the following: UL 4248-8 The margins of this specification sheet are marked with vertical lines to indica
11、te 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 content irrespec
12、tive of the marginal notations and relationship to the last previous issue. MILITARY INTEREST: CIVIL AGENCY COORDINATING ACTIVITIES: Custodians: GSA - FAS Army - CR Navy - EC Preparing activity: Air Force - 85 DLA - CC DLA - CC Review activities: (Project 5920-2013-011) Army - AT, CR4 Navy - OS NSA
13、- NS 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 https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
