fusetron ? frn-r dual-element, time-delay fuses ?? -60a class rk5 C 250 volt form no. frn-r ?? -60 page 1 of 3 bif doc #1019 bussmann ? 9-7-99 sb99013 rev. a general information: ? provides motor overload, ground fault and short-circuit protection. ? helps protect motors against burnout from overloads. ? helps protect motors against burnout from single phasing on three phase systems. ? simplifies and improves blackout prevention (selective coordination). ? dual-element fuses can be applied in circuits subject to temporary motor overloads and surge currents to provide both high performance short-circuit and overload protection. ? the overload element provides protection against low level overcurrent of overloads and will hold an overload which is five times greater than the ampere rating of the fuse for a minimum of ten seconds. 1 / 10 a to 30a .56" ( 0.008) 2" ( 0.31) 35a to 60a .81" ( 0.008) 3" ( 0.31) catalog symbol: frn-r current-limiting dual-element, time-delay C 10 seconds (minimum) at 500% rated current ampere rating: ?? to 60 amperes voltage rating: 250 volts ac (or less) interrupting rating: 200,000a rms sym. dc ratings: 20,000 aic @ 125 vdc agency approvals: ul listed, std. 248-12, class rk-5, guide jddz, file e4273 csa certified, c22.2 no. 248.12, class 1422-01, file 53787 catalog numbers frn-r- ?? frn-r-1 ??? frn-r-8 frn-r- ? frn-r-2 frn-r-9 frn-r- t??? frn-r-2 ? frn-r-10 frn-r- ??? frn-r-2 ?a frn-r-12 frn-r- ? frn-r-2 ??? FRN-R-15 frn-r- ?? frn-r-3 frn-r-17 ?a frn-r- y?? frn-r-3 ??? frn-r-20 frn-r- ?a frn-r-3 ?a frn-r-25 frn-r- ??? frn-r-4 frn-r-30 frn-r- ??? frn-r-4 ?a frn-r-35 frn-r-1 frn-r-5 frn-r-40 frn-r-1 ? frn-r-5 ??? frn-r-45 frn-r-1 ? frn-r-6 frn-r-50 frn-r-1 y?? frn-r-6 ? frn-r-60 frn-r-1 ?a frn-r-7 frn-r-1 ??? frn-r-7 ?a ? fuseblocks for class r fuses (clip retaining spring standard, suffix r) terminal type (suffix no.) basic screw w/ box lug w/ ? catalog pres. clip quick- amps poles number plate cu only connect ?? 1 r25030-1 sr pr cr cor qr to 2 r25030-2 sr pr cr cor qr 30 3 r25030-3 sr pr cr cor qr 31 1 r25060-1 sr cr cor to 2 r25060-2 sr cr cor 60 3 r25060-3 sr cr cor fuse reducers for class r fuses equipment desired fuse catalog number fuse clips (case) size (pairs) 250v 60a 30a no. 263-r 100a 30a no. 213-r 60a no. 216-r 200a 60a no. 226-r carton quantity and weight ampere carton weight* ratings qty. lbs. kg. 0C15 10 0.40 0.181 17.5C30 10 0.50 0.227 35C60 10 1.00 0.453 *weight per carton. dimensional data ce logo denotes compliance with european union low voltage directive (50-1000 vac, 75-1500 vdc). refer to bif document #8002 or contact bussmann application engineering at 636-527-1270 for more information.
fusetron ? frn-r dual-element, time-delay fuses ?? -60a class rk5 C 250 volt form no. frn-r ?? -60 page 2 of 3 bif doc #1019 bussmann ? 9-7-99 sb99013 rev. a 300 100 10 1 .1 .01 .1 1 10 100 1,000 current in amperes time in seconds .1 .2 .15 .3 .4 .6 .5 .8 1 1.25 1.6 2 2.5 3.2 4 5 6.25 8 10 12 ampere rating current in amperes time in seconds 300 100 10 1 .1 .01 10 100 1,000 10,000 60a 30a ampere rating 15a 8a 10a time-current characteristic curvesCaverage melt
bussmann ? fusetron ? frn-r dual-element, time-delay fuses ?? -60a class rk5 C 250 volt form no. frn-r ?? -60 page 3 of 3 bif doc #1019 9-7-99 sb99013 rev. a the only controlled copy of this bif document is the electronic read-only version located on the bussmann network drive. all ot her copies of this document are by definition uncontrolled. this bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with de sign applications. bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. bussmann also reserves the rig ht to change or update, without notice, any technical information con- tained in this bulletin. once a product has been selected, it should be tested by the user in all possible applications. current-limitation curve
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