part number: kldr004. technology: fuses series: kldr kldr series - class cc time-delay fuse for transformers kldr fuses are time-delay fuses specifically designed for the protection of control transformers, solenoids and similar inductive components with high magnetizing currents during the first half- cycle. they closely match most control power transformer characteristics, which permits the fuses to be sized in accordance with the latest revisions of ul 508 (industrial control) and ul 845 (motor control centers). when the time delay of kldr fuses is adequate to carry motor starting current, they provide excellent protection of motor branch circuits containing iec or nema rated motor controllers or contractors. compared to other ul listed fuses, class cc fuses are the most current limiting, rating for rating. because they are physically compact, they provide this superior protection in a fraction of the space required by other fuse classes. for example, when 600v three-pole, 30 ampere class r fuse blocks are replaced by littelfuse class cc fuse blocks, panel- mounting space is reduced approximately 70%. this is especially important when a panel contains many fuses to protect multiple circuit components. applications: three types of class cc fuses, specifically designed to protect different types of components: 1. motor protection ? ccmr series; dual-element, time- delay fuses specifically designed to protect motor circuits up to 40 hp. review the motor protection tables in pf101 for more information. 2. small transformer protection (control power transformers) ? kldr series, time-delay fuses designed to withstand the high magnetizing inrush of transformers. 3. general purpose protection of equipment requiring fast overload protection ? klkr series, fast-acting fuses used for protection of equipment containing solid-state devices or other electronic components requiring fast response on overloads. safety: z 200,000 a.i.r. ? reliable interruption of all overcurrents up to 200,000 amperes. z extremely current limiting ? reduces damage caused by heating and magnetic effects of short-circuit currents? stops damaging short-circuit faster than any mechanical protective device. space saving: z class cc fuses are the smallest 600v, 200,000 a.i.r. fuses approved for branch circuit protection. economical: z current limiting design often permits use of readily available, less costly equipment.
electrical characteristics property value amp rating (a) 4 form factor class cc fuse class supplemental opening characteristic time delay resistance (ohms) 0.118000001 voltage rating (v) 600
axial lead and cartridge fuses 469 11 axial lead and car tridge fuses midget class cc* fast-acting & slo-blo ? type fuses ccmr series environmental specs: only klkr is rohs compliant and lead-free agency file numbers: ul e81895, csa lr 29862. voltage ratings: ac: 600 volts dc: 250 v olts (ccmr 2/10 C2a) (ccmr 4 1/2 C10a) (ccmr 35 C60a) 300 volts (ccmr 2 1/4 C4a) 300 v olts (kldr) 300 volts (klkr ) nominal nominal nominal ampere catalog resistance catalog resistance catalog resistance rating number cold ohms number cold ohms number cold ohms 1/10 C C kldr .100 246 klkr .100 79.33 1/8 C C kldr .125 134.9 klkr .125 56.52 15/100 C C kldr .150 96 C C 3/16 C C kldr .187 66.4 C C 2/10 ccmr .200 68.4 kldr .200 57.8 klkr .200 28.21 1/4 ccmr .250 43.3 kldr .250 31.61 klkr .250 19.22 3/10 ccmr .300 28.6 kldr .300 25.5 klkr .300 15.10 4/10 C C kldr .400 13.6 C C 1/2 ccmr .500 7.62 kldr .500 15.9 klkr .500 6.95 6/10 ccmr .600 8.2 kldr .600 9.99 C C 3/4 C C kldr .750 6.08 klkr .750 3.581 8/10 ccmr .800 4.013 kldr .800 6.2 C C 1 ccmr 001. 2.59 kldr 001. 4.0 klkr 001. .2342 1 1/8 C kldr 1.12 2.94 C C 1 1/4 ccmr 1.25 1.687 kldr 1.25 2.33 C C 1 4/10 ccmr 01.4 1.33 kldr 01.4 1.5 C C 1 1/2 ccmr 01.5 1.24 kldr 01.5 .898 klkr 01.5 .225 1 6/10 ccmr 01.6 .9894 kldr 01.6 .625 C C 1 8/10 ccmr 01.8 .7783 kldr 01.8 .486 C C 2 ccmr 002. .485 kldr 002. .55 klkr 002. .135 2 1/4 ccmr 2.25 .4166 kldr 2.25 .52 C C 2 1/2 ccmr 02.5 .3375 kldr 02.5 .333 klkr 02.5 .0906 2 8/10 ccmr 02.8 .2400 kldr 02.8 .26 C 3 ccmr 003. .2188 kldr 003. .21 klkr 003. .0776 3 2/10 ccmr 03.2 .1855 kldr 03.2 .171 C C 3 1/2 ccmr 03.5 .1346 kldr 03.5 .239 klkr 03.5 .0562 4 ccmr 004. .1231 kldr 004. .118 klkr 004. .0468 4 1/2 ccmr 04.5 .093 kldr 04.5 .082 C C 5 ccmr 005. .0704 kldr 005. .0399 klkr 005. .0332 5 6/10 ccmr 05.6 .0535 kldr 05.6 .0334 C 6 ccmr 006. .0517 kldr 006. .0315 klkr 006. .0238 6 1/4 ccmr 6.25 .0464 kldr 6.25 .03 C C 7 ccmr 007. .0369 kldr 007. .0253 klkr 007. .0208 7 1/2 ccmr 07.5 .027 kldr 07.5 .0205 C C 8 ccmr 008. .023 kldr 008. .0193 klkr 008. .0177 9 ccmr 009. .0193 kldr 009. .0155 klkr 009. .0151 10 ccmr 010. .0133 kldr 010. .0122 klkr 010. .01325 12 ccmr 012. .0114 kldr 012. .0114 klkr 012. .00852 15 ccmr 015. .00708 kldr 015. .00708 klkr 015. .0074 17 1/2 ccmr 17.5 .00495 kldr 17.5 .00495 C C 20 ccmr 020. .00360 kldr 020. .0036 klkr 020. .00511 25 ccmr 025. .00250 kldr 025. .0025 klkr 025. .003775 30 ccmr 030. .00240 kldr 030. .0024 klkr 030. .002954 35 ccmr 035. .00426 C C C C 40 ccmr 040. .00286 C C C C 45 ccmr 045. .00246 C C C C 50 ccmr 050. .00182 C C C C 60 ccmr 060. .00118 C C C C ? u l ? fast-acting klkr fuses provide fast-acting protection to equipment containing surge sensitive components. use klkr fuses for non- inductive loads not requiring time delay. ccmr fuses (formerly klmr) are specifically designed to withstand sustained starting currents of small motors. the ccmr fuses provide short-circuit protection for motor branch-circuits. kldr fuses are specifically designed to withstand the momentary high magnetizing currents of control transformers, solenoids, and similar inductive loads. electrical characteristics: % of ampere ampere opening rating rating time 110% 1/10 C30 15 minutes, min imum 135% 1/10 C30 1 hour, max im um agency approvals: dc ratings are self-certified. klkr series: ul listed fast-acting class cc per ul 248 and csa certified. kldr, ccmr series: ul listed time-delay class cc per ul 248 and csa certified. *ccmr 35-60a ul listed time-dela y class cd . interrupting rating: ac: 200,000 ampere dc: 20,000 amperes ordering information: 11 axial lead and car tridge fuses axial lead and car tridge fuses rohs pb
axial lead and car tridge fuses 1000 100 10 1 0.1 0.01 10 100 1000 .1 1 1/8a 2/10a 3/10a 1/2a 6/10a 3/4a 1a 1.8a 2a 2 1/2a 3a 4a 6 1/4a 8a 10a time in seconds current in amperes average time current curve (kldr) 1000 100 10 1 0.1 0.01 10 100 1000 .1 1 1/10a 1/8a 2/10a 1/4a 3/10a 1/2a 3/4a 1a 1 1/2a 2a 3a 4a 5a 6a 8a 9a 10a 12a 15a 20a 25a 30a time in seconds current in amperes average time current curve (klkr) 1000 100 10 1 0.1 0.01 10 100 1000 0.1 1 1/4a 1/2a 8/10a 1a 1 1/4a 1 1/2a 1 8/10a 2a 2 1/2a 3a 3 1/2a 4a 6a 8a 10a 12a 15a 20a 25a 30a 35a 60a current in amperes time in seconds average time current curve (ccmr) 38.1 mm (1.50") 6.4 mm (.25") 12.7 mm (.50") 10.3 mm (.41") 0-30a 3.2 mm (.125") 21.6 mm (.850") 47.8 mm (1.880") 35-60a ? u l ? 470 class cc* f ast-acting & slo-blo ? t ype fuses ccmr series rohs pb axial lead and cartridge fuses
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