technical data 1003 effective march 2017 supersedes july 2015 lpn-rk 250 vac/125 vdc, 1?10-60 a, dual element, time-delay fuses catalog symbols: ? lpn-rk(amp)sp (non-indicating) ? lpn-rk(amp)spi (indicating) description: ultimate protection class rk1 dual element, current-limiting, time-delay fuses available with optional open fuse indication. time-delay C 10 seconds (minimum) at 500% of rated current (8 seconds for 0-30a sizes). specifcations: ratings ? volts ? 250 vac ? 125 vdc ? amps 1/10-60a ? ir ? 300 ka vac rms sym. ? 100ka vdc agency information ? ul listed, guide jddz, file e4273 ? csa certified, class 1422-02, file 53787, class rk1 per csa c22.2, no. 248.12 ? ce catalog no. lpn-rk-1/10sp lpn-rk-2sp lpn-rk-9sp lpn-rk-15/100sp lpn-rk-21/4sp lpn-rk-10sp lpn-rk-2/10sp lpn-rk-21/2sp lpn-rk-12sp lpn-rk-3/10sp lpn-rk-28/10sp lpn-rk-15sp lpn-rk-4/10sp lpn-rk-3sp lpn-rk-171/2sp lpn-rk-1/2sp lpn-rk-32/10sp lpn-rk-20sp lpn-rk-6/10sp lpn-rk-31/2sp lpn-rk-25sp lpn-rk-8/10sp lpn-rk-4sp lpn-rk-30sp lpn-rk-1sp lpn-rk-41/2sp lpn-rk-35sp* lpn-rk-11/8sp lpn-rk-5sp lpn-rk-40sp* lpn-rk-11/4sp lpn-rk-56/10sp lpn-rk-45sp* lpn-rk-14/10sp lpn-rk-6sp lpn-rk-50sp* lpn-rk-16/10sp lpn-rk-61/4sp lpn-rk-60sp* lpn-rk-18/10sp lpn-rk-8sp * open fuse indication available by inserting the suffix i, e.g. lpn-rk-50spi. requires 75vac minimum voltage. carton quantity ? 10 features and benefits ? industrys only ul listed and csa certified fuse with a 300 ka interrupting rating that allows for simple, worry-free installation in virtually any application. ? fast short-circuit protection and dual-element, time-delay performance provide ultimate protection. ? reduces existing fuse inventory by up to 33% when upgrading to low-peak fuses. ? consistent 2:1 ampacity ratios for all low-peak fuses make selective coordination easy. ? time-delay permits 130% fla sizing for back-up motor protection. ? current-limitation protects downstream components against damaging thermal and magnetic effects of short-circuit currents. ? protects against single-phase motor damage. ? proper sizing can provide no damage type 2 coordinated protection for nema and iec motor controllers.
2 technical data 1003 effective march 2017 recommended fuse blocks amps catalog no 1-ole 2-ole -ole 30 rm25030-1_ rm25030-2_ rm25030-3_ 60 rm25060-1_ rm25060-2_ rm25060-3_ for additional information on the 250 volt fuse blocks, see data sheets no. 10289. fuse reducers for class r fuses quipment fuse clips desired fuse case sie catalog no pairs 250 60 a 30 a no.263-r 100 a 30 a no.213-r 60 a no.216-r 200 a 60 a no.226-r for additional information on class r fuse reducers, see data sheet no. 1118. dimensions in 0.56 2 1/10 to 30 a 3 35 to 60 a 0.81 time-current curves - average melt 1/10 to 12 amps amp ra ting 300 100 10 1 0.1 0.01 0.1 1 10 100 1000 curren t in amps time in seconds 0.1 0.2 0.15 0.3 0.4 0.6 .50 0.8 1 1.25 1.6 2 2.5 3.2 4 5 6.25 8 10 12 lpn-rk 250 vac/125 vdc, 1?10-60 a, dual element, time-delay fuses eaton.com/bussmannseries
3 technical data 1003 effective march 2017 time-current curves - average melt 15 to 60 amps 20a 60a 30a amp ra ting 15a curren t in amps 20 100 1000 10,000 time in seconds 300 100 10 1 0.1 0.01 current-limitation curves current-limiting effects rosp cc et-troug current apparent r ym vs fuse rating 30 a 60 a 1000 1000 1000 2000 1000 1000 3000 1000 1000 5000 1000 2000 10,000 1000 2000 15,000 1000 2000 20,000 1000 3000 25,000 1000 3000 30,000 2000 3000 35,000 2000 3000 40,000 2000 3000 50,000 2000 3000 60,000 2000 3000 70,000 2000 3000 80,000 2000 4000 90,000 2000 4000 100,000 2000 4000 150,000 2000 4000 200,000 3000 5000 250,000 3000 5000 300,000 3000 6000 b 60a 30a amp rating inst anta neous peak let- through current in amps 400,000 9000 8000 7000 6000 6000 300,000 200,000 100,000 5000 4000 4000 90,000 3000 2000 1000 3000 80,000 70,000 60,000 50,000 60,000 200,000 20,000 2000 40,000 100,000 10,000 1000 30,000 80,000 40,000 8000 30,000 20,000 10,000 300,000 a rms symmetrical current in amps a-b = asymmetrical available peak (2.3 x sym rms amps) lpn-rk 250 vac/125 vdc, 1?10-60 a, dual element, time-delay fuses eaton.com/bussmannseries
technical data 1003 effective march 2017 follow us on social media to get the latest product and support information. eaton.com/bussmannseries lpn-rk 250 vac/125 vdc, 1?10-60 a, dual element, time-delay fuses the only controlled copy of this data sheet is the electronic read-only version located on the eaton network drive. all other 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 design applications. eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. once a product has been selected, it should be tested by the user in all possible applications. eaton, bussmann and low-peak are valuable trademarks of eaton in the u.s. and other countries. you are not permitted to use the eaton trademarks without prior written consent of eaton. csa is a registered trademark of the canadian standards group. ul is a registered trademark of the underwriters laboratories, inc. eaton 1000 eaton boulevard cleveland, oh 44122 eaton.com bussmann division 114 old state road ellisville, mo 63021 united states eaton.com/bussmannseries ? 2017 eaton all rights reserved printed in usa publication no. 1003 bu-sb13686 march 2017
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