1、 AMSC N/A FSC 5920 W-F-1814/59D 15 November 2013 SUPERSEDING W-F-1814/59C 20 November 2009 FEDERAL SPECIFICATION SHEET FUSE, CARTRIDGE, HIGH INTERRUPTING CAPACITY, CLASSES RK1 AND RK5 (CURRENT-LIMITING) 250 VOLTS, 101-200 AMPERES The General Services Administration has authorized the use of this fed
2、eral specification sheet 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 7.060 7.180 179.32 182.37 H .407 .469 10.34 11
3、.91 B 1.375 - 34.93 - J .839 .849 21.31 21.56 C 4.276 4.286 108.61 108.86 K - 1.690 - 42.93 D .683 .693 17.35 17.60 L 1.877 1.883 47.68 47.83 E .276 .286 7.01 7.26 M 1.125 (TYP) 28.58 (TYP) F 1.188 - 30.18 - N - 1.880 - 47.75 G - 1.375 - 34.93 FIGURE 1. Classes RK1 and RK5 fuses, 250 volts, 101-200
4、amperes. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-W-F-1814/59D 2 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Minimum acceptable thickness of tube wall .094 (2.39 mm). 4. Use o
5、f screw, pin, or rivet is optional. 5. The dashed line represents the limit of the maximum projection of a screw, rivet head, or the like. 6. Unless otherwise specified, tolerances are .02 (0.51 mm) for two-place decimals and .005 (0.13 mm) for three-place decimals. FIGURE 1. Classes RK1 and RK5 fus
6、es, 250 volts, 101-200 amperes - continued. REQUIREMENTS: Interface and physical dimensions: See figure 1. Physical: Nonrenewable. Terminals: Knife blade type. Material: Copper, or copper alloy. Strength: 5 inch-pound torque between body and blades. Body: Insulating material: Fiber, ceramic, melamin
7、e-impregnated glass fiber, or other suitable material. Electrical: Voltage: 250 volts or less. Frequency: 48 Hz to 60 Hz. Current: See table I. Current carrying capacity: 110 percent of rated current indefinitely with temperature rise not to exceed 50C (90F) above ambient on the body and 60C (108F)
8、on the blades. Overload interrupt: Instantaneous: Shall interrupt within 2 hours at 135 percent of rated current and within 8 minutes at 200 percent of rated current. Time delay: In addition to the above requirement, the fuse shall not interrupt 500 percent of rated current within 10 seconds. Interr
9、upting capacity rating: 200,000 amperes rms symmetrical at 250 volts, 48 to 60 Hz and a power factor of 20 percent or less. Closing angle shall be essentially Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-W-F-1814/59D 3 at the zero of the voltage w
10、ave (maximum offset) or later, to produce start of arcing within 30 electrical degrees prior to system peak voltage. Threshold ratio: 30 maximum for RK1; 65 maximum for RK5. Peak let-thru current: See table II. Maximum clearing I2T: See table II. Applicable fuseholder: Class R for blade type fuses i
11、n accordance with UL 4248-12. Part or Identifying Number (PIN): The Government PIN shall consist of the prefix “WF1814/59-“ followed by the PIN designation shown in table I. TABLE I. Current rating and PIN designation. Current in amperes PIN designation RK5 RK1 Instantaneous Time delay Instantaneous
12、 Time delay 110 F5110 D5110 F1110 D1110 125 F5125 D5125 F1125 D1125 150 F5150 D5150 F1150 D1150 175 F5175 D5175 F1175 D1175 200 F5200 D5200 F1200 D1200 TABLE II. Peak let-thru and I2T current. Between threshold and 50 kA 100 kA 200 kA RK1 RK5 RK1 RK5 RK1 RK5 Maximum acceptable peak let-thru current
13、(Ipx 103) 18 32 22 40 30 50 Maximum clearing I2T (amperes squared seconds) (I2T x 103) 400 1600 400 1600 400 2000 Referenced documents. In addition to W-F-1814, this document references the following: UL 4248-12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
14、m IHS-,-,-W-F-1814/59D 4 The margins of this specification sheet are marked with vertical lines 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 con
15、tractors are cautioned to evaluate the requirements of this document based on the entire content irrespective 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:
16、Air Force - 85 DLA - CC DLA - CC Review activities: (Project 5920-2013-017) Army - AR, AT, CR4 Navy - OS Air Force - 99 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-,-,-
