Insulating blades for hrc fuse sockets are made of red polycarbonate, in three dimensions, depending on the fuse socket and are provided with metallic fixing lamella that allows the coupling to protective devices for the handling of hrc fuses. You can find 00 and 3ag sized hrc fuses, but dont forget to top up the credit on the visa card before purchase. In case of any fault, the striker pin comes out with pre defined force. The nsd range of fuse links comply with general purpose gg characteristics and fit into the safeloc fuse holders and into the camloc distribution fuseboardsystem. The typical fuse consists of an element which is surrounded by filler and enclosed by the fuse body. There is a small overlap zone between the overload and shortcircuit modes of operation, where the fuse may or may not act in. The load contactors are interlocked with the fan controls to ensure load can be applied only when the fan is running. They are known as semienclosed or rewireable fuses. In power plants, hrc fuses are used extensively to protect buses, feeders and loads. A fuse is a protection device used to protect a device or a circuit from severe damage caused due to overcurrent or short circuit faults. Here is an example of a timecurrent curve from a cooper bussmann datasheet. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray.
Container construction capacities from 1600kw 6000kw 2000kva 6000kva bestinclass sigma controls rail mounted contactors allow greater load selection and fine tuning opportunities. Hrc fuselinks offer one of the best forms of protection for motor starting applications in view of very low short circuit stresses generated in case of a fault as compared to other protective devices. Bs88, iec269 industrial hrc fuse links offset bolted tags 550v ac and motor rated 415v osd offset bolted tag bussmann division cooper u. Pe hrc fuses system tm fuse links for distribution protection construction. Hrc fuse links size 000 w technical data size nh000 rated voltage ac400v rated current 2100a rated breaking capacity 100ka utilization category gg standards iecen 602691 din vde 06362 powerdissipation 4a 0,7w. Performance of hrc and mccb are compared under a typical system performance condition. By the temporary replacement of fuses, insulating blades allow the open position locking of power. Hrc fuse link is a very common, simple and effective electrical protection device against over load and short circuit current. Schurter offers a wide variety of fuses to meet any application. They combine three length wisearranged 1pole fusebases in one unit.
Of course provided you can find ones of suitable dimensions. Arcing takes place inside hbc fuse cartridge during fault and hence your installation is safe. Low voltage fuse catalogue hrc fuse online catalogue. Varius e2 summary of models of hrc fuselinks type pva10 pv10 pv14 pv22 rated current i n up to 32 a up to 63 a up to 125 a rated voltage u n ac 400 v, 500 v 400 v, 500 v, 690 v 400 v, 500 v, 690 v dc 250 v 250 v 250 v fuselink size 10x38 14x51. Hrc fuse consists of heat resisting ceramic body having metal end caps on which silver current carrying element. Is 703 iec 60269 new standard for hrc fuses supercedes is 9224. Hrc fuse bases are tested for 80 ka at 415 v, 50 hz as per is. Performance of hrc fuse and mccb in low voltage distribution. The ratio of fusing current and the current rating of fuse element is known as. All other copies of this bif document are by definition uncontrolled.
S01574a ofaa s01574a fusegear bs and din type hrcfuse. Lv hrc fuse switch disconnectors with quasiinstantaneous circuit. Energy saving hrc fuselinks blade type hn 63 a 800 a cylindrical type hf 2 a 63 a. An hrc fuse is a type of cartridge fuse, in which the fuse element is enclosed within a transparent capsule, usually made up of. It depends on the duration of the current and the specifications of the fuse. Bare wire will vapourise and bridge the contacts inside the equipments. Din square bodied, dual indication industrial fuses. Request pdf performance of hrc fuse and mccb in low voltage distribution. Nh lv hrc fuse links conform to the international standard iec 60269 combi indicator.
Because of its high current rupturing capacity, a special method for extinguishing arc is required in the. Can you replace the glass fuses in a multimeter with hrc fuses of a similar voltage and current rating. Because the hrc fuse will act,at the time of short circuit or the current exceeding the fuse limit. Looking at the curve for the 400amp fuse, the second from the bottom, the 400amp fuse w. Design and manufacturing of hrc fuse links engineers. The element is welded or soldered to the fuse contacts blades or ferrules. In this paper, application of hrc fuses and mccbs in low voltage distribution network is examined. Hrc fuses consist of a ceramic body with a silver fuse filament based on ampere rating and a striker pin. The standard range of fuses for low voltage industrial and general. High rupturing capacity hrc fuses are totally enclosed fuses with definitely known, high breaking capacities which have been developed after intensive research by manufacturers and supply engineers. Looking for downloadable 3d printing models, designs, and cad files.
Lv hrc stripfuseways bottom connection sizes 003 160a630a 62 product definition stripfuseways are 3pole striptype fusebases for mounting on busbars. Can we use hrc fuse inplace of semi conductor fuse. In this mode, the fuse does operate during the first major half cycle, and does limit the magnitude of the fault current. Hrc fuses consist of a ceramic body with a silver fuse filament based on ampere rating and a striker pin mechanism. Fuse characteristics can be classified into three general categories. This striker pin further can be used to trip equipment it has to protect. The vapour of fuse element and the powder together form the high resistive substance which extinguishes the arc. No we should not use the hrc fuse in place of semiconductor fuse. Cad blocks and files can be downloaded in the formats dwg, rfa, ipt, f3d. It consists of fuse wire which is designed according to the customers requirement and the rest of the design depends upon it. Please visit our website at for further information. Bussmann also reserves the right to change or update, without notice, any technical infor. Hrc fuse links size 2 w technical data size nh2 rated voltage ac400v rated current 35400a rated breaking capacity 100ka utilization category gg standards iecen 602691 din vde 06362 powerdissipation 63a 5,5a. Free cad and bim blocks library content for autocad, autocad lt, revit, inventor, fusion 360 and other 2d and 3d cad applications by autodesk.
Recommended fuse holders basic fuse holder catalog catalog numbers numbers nsd 32nnsf esd 63ensf. But the semiconductor fuse will act when the current exceeding as well as no current in the circuit,where the voltage exceeds the fuse limit. Remote alarm terminal available in three positions common to dc circuit protection devices. Fuses with gg characteristics protect associated cables. In the united states they are known as class j, class l, class r, etc. Fuse characteristics, terms and consideration factors.
In the uk, fuses of this type are specified for use at voltages up to 250 v and currents up to 100 a. Part of that system is temperature sensitive element, which reacts in cases of temperature increasing of the fuselink due to various reasons. This is very important when testing large capacity power supplies, due to the possible high fault currents. Steatite insulator, corrosionproof aluminum metal parts with fullcontact, silverplated copper blades. Hrc fuse links, vac product code asicc 77434 quality and standards is 703. One contact of each phase in coming contact is con nected to one phase of a 3pole busbar system. Electrical fuse on what principle does the fuse operate. Basic construction 1 base of disconnector ultl003 2 protective cover, top boltl003 3 protective cover, bottom. An important element in the fuselink construction is also the striker system. During overloads or short circuits the fuse gets heated up to melting point due to excessive current and breaks the circuit.
However, the best possible rating of a hrc fuselink selectedrecommended for such application depends on. Hrc fuse links nh class of operation glgg 690v ac 440v dc 6 to 630 amps. The construction of the fuse element is similar to the low voltage fuses. Extensive electrical protection with hrc fuse protection for each element group and its associated contactor, control circuit, fan motor overload and load bank. The body is a ceramic material of robust construction and has one or more element holes. Hrc fuse construction, working and characteristics electrical. The larger the wire cross section, the larger is the current that the fuselink will carry without operating. Hrc fuse high rupturing capacity fuse and its types. Because of its high current rupturing capacity, a special method for extinguishing arc is required in the design of hrc fuse.
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