W-F-1814-65 Fuse, Cartridge, High Interrupting Capacity, Classes Rk1 And Rk5 Current-Limiting 600 Volts, 101-200 Amperes

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W-F-1814/650

Part or Identifying Number (PIN): The Government PIN shall consist of the prefix "WF1814/65-" 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	Time delay
110 125 150 175 200	F5110 F5125 F5150 F5175 F5200	05110 05125 05150 05175 05200	F1110 F1125 F1150 F1175 F1200	01110 01125 01150 01175 01200

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 (Ip x 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

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 contractors 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.