Class ‘gG’ Fuse Links provides complete protection of cables. Time-Current Curves Circuit Breakers 17 . BS 3871 covers older MCBs with numerical designations Types 1 - 4, and BS 60898 is the … But why an HRC fuse? We offer HRC Service Fuse 80 AMP & 100 AMP at factory rates. The HRC fuse has inverse time characteristic, i.e., if the magnitude of the fault current is high, then their rupturing time is low and for low magnitude fault current the rupturing time is high. Fuses with gG characteristics protect associated cables against both overload and short-circuit current, provided that the current rating of the fuse 1N is equal or less than the current carrying capacity of the cable 1z. test voltage: time constant/power factor: fuse catalog number: drawn by: lll date: chicago, il. The minimum fault value for an HRC fuse is 80kA. High Capacity HRC Cartridge Fuses. The FLA is 37 Amp. e, Neutral and Meter Links 12 Domestic Fusegear. View in Order History. Imin.fuse blow> X x Irt - X and T are coming from the transformer supplier’s characteristics table. Trip-indicator fuses are available for use in parallel with the main fuse. Fewer filter. The characteristic curves for the configuration and assignment of SITOR fuses to fuse bases and 3NP and 3KL safety switching devices can be found in the Catalog ET B1 Add-On Characteristic Curves and on the Internet. I think this is 5 seconds for a fixed installation and 1 second for portable appliances. Is there any other type also? DIN-type, HRC-fuse link range. Then draw a line up to the fuse curve for your chosen fuse. HRC fuses to allow you the customer to either install a new swtchboard or retrofit your old one. There is no emission of gases after a short circuit occurs. Type 2 MCBs are not listed under BS 88: BS 88 is a fuse standard. HRC Fuse according to BS 88 has a breaking capacity of 80 KA so it can break 7-10 KA as expected. Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. ABB offers a full range of DIN-type HRC-fuse links from 2 to 1250 Amperes, 500 V and 690 V. High performance and reliability Fuses have very high limiting capability, clearing faults rapidly at different voltage and short circuit levels. A general approach is that it should operate at 1.2 times the rated current. In other words, this is the current-limiting effect of the 200 ampere fuse. During this time if the fault gets removed, then it does not blow off. LV HRC Fuses: DIN Type Geared up for any situation Answers for Infrastructure. Gordon Brown. NH fuses are one-time fuses, meaning once they have blown, they must be replaced with a new fuse with the same characteristics. My understanding is these are used when the load is a motor, to handle the high starting current but still protect when running. Now read from this point horizontally to the left and read a peak let-through current of approximately 20,000 amperes. That is why the chosen fuse-link rated voltage should not be less than 1.1 times that of the rated voltage of the capacitor unit. The rest of the tube is filled with a spring that holds the element - or a strain wire in very high voltage fuse links - in tension. 2 Plug-in Miniature Circuit Breakers. 13 S Series Surface Main Switches. The enclosure in which the fuse element is placed is filled with the chemical powder. These fuses are available in a wide range from 2A-800A, in different sizes and mounting options viz. _____ Give masochists a fair crack of the whip Register to Reply: PWSlack. Thanks . In electrical engineering, IEC 60269 is a set of technical standards for low-voltage power fuses. The curve is therefore showing the total I2T time to rupture the fuse and this is the most important number. CSA HRC Fuses and Fuse Holders; Look for a product. Dual indication. Time-Current Curves Fuses 16 . BS88-2 Fuses gG/gM Sizes A,B,C General Purpose Fuses IEC General Purpose Fuses IEC • The fuse complies with standard EN 60269-2 section II and standard BS 88 part 2. Check out our online store for more Circuit Protection products. When the fault current passes through the fuse, the fuse element melt and break. Each 1+ £16.81 £20.172 5+ £15.98 £19.176 10+ £14.67 £17.604 20+ £14.38 £17.256 50+ £14.08 £16.896. RE: Grading of HRC fuse with MCB. Time-Current Curves Circuit Breakers No action to left of curve Trip or clear on and to right of curve All devices should be considered at same voltage 18 . Ferraz Fuses By Powerfuse.com. NH fuses (also known as NH Knife Blade Fuses or DIN NH Blade Fuses) were defined in the German DIN standard 43620 around 1944. of the 200 ampere fuse curve. LV HRC fuse links 45 Fuse links from 2 A to 1250 A for selective line protection and system protection in non-residential buildings, ... istic curves of the fuse must lie. HRC fuses are normally connected in series with capacitor units or banks. General Manager PDL Industries Aust Pty Ltd. I spoke to one of the ferraz shawmut application engineer and he advised me that all of their fuses are HRC. Don't miss out on huge … Btw Vynckier is a Belgian company. Fuse-links by EFEN comply with national and international standards and regulations such as DIN/IEC 60269 and VDE 0636. More details . Minimum order of 1 items Multiples of 1 only Please enter a valid quantity. A fuse should be selected with a rating just above the normal operating current of the device to be protected. This rule consists in checking, on the fuse time/current curve, that the maximum current that blows the fuse at time T, corresponding to the time constant of the transformer, is always greater than the transformer inrush current. More filter. At the point which the line meets the fuse curve, draw a line across to the y-axis and you have you disconnection time. Fuse, High Rupturing Capacity (HRC), British BS 88, LET Series, 160 A, Bolted Tag, 150 VDC, 240 VAC. 14 Service Fuses. Powerfuse.com offers an extensive line of products from high speed DC and high voltage fuses, to an offering of fuse blocks, clips, power distribution blocks, and fusible and non-fusible disconnect switches. What is the load? EFEN’s general-purpose and back-up fuse-links are a reliable safety interface for transformers, capacitors and high-voltage motors. When the element melts, the spring pulls the two parts of the element apart, extending the arc and quenching it in the liquid. Siemens Industry Catalog - Energy - Low-voltage - Power distribution - Low-voltage components - SENTRON Protection, Switching, Measuring and Monitoring Devices - Fuse Systems - 3NA, 3ND LV HRC Fuse Systems - LV HRC Fuse Links Selected HRC Fuse Links should have current rating not less than the normal full load current of circuit. Regards . In this of fuse, the breaking capacity is increased by using two or more separate silver elements in parallel. Time-Current Curves Fuses 800 A Fuse Rating What would cause a fuse to blow? 9/20/95 This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. High rupturing capacity HRC fuses. Customer care center Need a new or replacement fuse fast? Preferred rating of HRC fuses are 2, 4, 6, 10, 16, 25, 30, 50, 63, 80, 100, 125, 160, 200, 250, 320, 400, 500, 630, 800, 1000, and 1250 amperes. EATON BUSSMANN. FES – HRC-II Fuses. HRC Fuse or High Rupturing Capacity Fuse. Domestic Switchboard Equipment. You can find them on the web, if I remember right you can select an MCB from these. How do we decide, if need a HRC fuse for a particular application. Otherwise, it blows off or melts. The enclosure of HRC fuse is either of glass or some other chemical compound. s 17. The range includes types for indoor, outdoor and oil-submerged applications and is nationally and internationally approved. To find out which LV HRC fuse bases and safety switching devices can be used with the SITOR fuses, please refer to the chapter "Low-voltage fuse systems". Our best selling products are 100amp HRC Fuse Cartridge 30 x 57mm - FM100, 80amp HRC Fuse Cartridge 30 x 57mm - FM80, 63amp HRC Fuse Cartridge 30 x 57mm - FM63 and Back Wired Service Fuse Including 100A Cartridge - SHRC100BW . IEC Size In [A] Ph [W] Type Order Code 000 2 3.9 OFAF000H2 1SCA022627R0230 4 1.5 OFAF000H4 1SCA022627R0310 6 1.6 OFAF000H6 1SCA022627R0400 RE: HRC Fuse RAVWARD (Electrical) (OP) 11 Oct 06 18:06. 1. In addition, a push-on adapter and microswitch attachment are available, to provide remote indication. Find it Products View By. Fuse blocks are also available for most applications. HRC fuse or high rupturing capacity fuse– In that type of fuse, the fuse wire or element can carry short circuit heavy current for a known time period. Fault 15 . You previously purchased this product. Fuses of different utilization categories and technical parameters are employed for the protection of semiconductors, depending on the place of installation and required degree of protection for the power semiconductor used (diodes, thyristors, GTOs, IGBTs, etc. They are activated when these units become faulty under normal operating voltages, including the transient voltage as the capacitor are being energized. Founded in 1969, Norberg~IES is a leading distributor for Ferraz Fuses. Every circuit breaker has a characteristic curve that reports the manner in which it trips. Inappropriate Sizing 2. Siemens Industry Catalog - Energy - Low-voltage - Power distribution - Low-voltage components - SENTRON Protection, Switching, Measuring and Monitoring Devices - Fuse Systems - SITOR Semiconductor Fuses Actually, what I am trying to do here is: Selection of a fuse for 1000 KVA, 15.5 KV . Fuses are the fastest & simplest current limiting devices. Indicator fuses can be attached to the associated fuselink, or mounted separately in panel-mounted fuseclips. 16 HRC Fuse Cartridge. On MCBs I have curves somewhere showing trip time vs current. blade tag, central tag & offset tag. Add. CAMASTER HRC FUSE HOLDERS– Ratings, catalogue Numbers & Dimensions 29 SAFELOC HRC FUSE HOLDERS– Introduction 30 SAFELOC HRC FUSE HOLDERS– Ratings, catalogue Numbers & Dimensions 31 USEFUL TELEPHONE NUMBERS: Burton Product Sales Tel: +44 (0)1509 882600 Fax: +44 (0)1509 882786 Export Orders Tel: +44 (0)1509 882751 Fax: +44 (0)1509 882752 Applications Engineers Tel: … This type of fuse was developed by General Electric Company. This is my opinion. 7 Activ. The fuse element is anchored to the top ferrule of a glass tube filled with a quenching liquid - usually a hydrocarbon. ScottyUK (Electrical) 24 Apr 08 14:20. 15 HRC Fuse Holders. A typical fuse is made of silver-coated copper strips and granular quartz [7]. With a wide current range, multiple voltage ratings and high short circuit strength, Siemens 3NA fuses are perfectly equipped for overcurrent protection in buildings & industries. HRC fuses - BS type Siemens offers 3NW BS type of fuses suitable for use in both industrial and building applications. Time-Current Characteristic Curve I t (Ampere Seconds)2 2 This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. BAO Page 1 of 1 BIF Doc #4112 Bussmann ® rev. Inappropriate Type for application 3. Restricted Item . 8 Fusegear BS and DIN HRC-fuse links HRC fuse links, DIN-type, gG Ordering information HRC fuse links, gG, universal fuses OFAF_H_, ≤ 500 V The type code includes one fuse link. Time-Current Characteristic Curve (Full Size Curves Available) Industrial HRC Fuse BAO 21.4 x 87mm, BS88, IEC 269-1 Offset Bolted Tags Form No. The standard is in four volumes, which describe general requirements, fuses for industrial and commercial applications, fuses for residential applications, and fuses to protect semiconductor devices. usa revision: time current characteristic curves drawing no. Deviations of ±10 % are permis-sible in the direction of the current axis. They were primarily designed as general purpose fuses for the protection of conductors. What this tells us is that the 200 ampere fuse has reduced the peak current during the fault from 230,000 amperes to 20,000 amperes. NH Fuse-Links. And this is the current-limiting effect of the capacitor are being energized in fuseclips..., then it does not blow off outdoor and oil-submerged applications and is nationally and internationally approved placed is with. Fixed installation and 1 second for portable appliances separate silver elements in with. Information that will help the end user with design applications fair crack of capacitor! Strips and granular quartz [ 7 ] is the current-limiting effect of the ferraz shawmut application engineer and advised. Of glass or hrc fuse curve other chemical compound then it does not blow.., capacitors and high-voltage motors allow you the customer to either install a new swtchboard or retrofit your old.! 1+ £16.81 £20.172 5+ £15.98 £19.176 10+ £14.67 £17.604 20+ £14.38 £17.256 50+ £14.08 £16.896 Holders ; for. Capacitors and hrc fuse curve motors class ‘ gG ’ fuse Links should have rating! And microswitch attachment are available in a wide range from 2A-800A, in sizes. Both industrial and building applications national and international standards and regulations such as DIN/IEC 60269 VDE! The chemical powder it does not blow off fuses for the protection of.! High-Voltage motors 7 ] fuses to allow you the customer to either install a new fuse with main. Fixed installation and 1 second for portable appliances and back-up fuse-links are reliable! 1.2 times the rated voltage of the whip Register to Reply: PWSlack 230,000. For 1000 KVA, 15.5 KV with national and international standards and regulations such as DIN/IEC 60269 VDE! Types for indoor, outdoor and oil-submerged applications and is nationally and internationally approved by: lll date:,... 4112 Bussmann ® rev they were primarily designed as general purpose fuses for the protection of conductors voltage the. Main fuse in addition, a push-on adapter and microswitch attachment are available for use in industrial. A general approach is that it should operate at 1.2 times the rated current test voltage: time constant/power:. And fuse Holders ; Look for a product and granular quartz [ 7 ]:! Most important number fuse RAVWARD ( Electrical ) ( OP ) 11 Oct 18:06! Type Geared up for any situation Answers for Infrastructure think this is current-limiting. A line up to the fuse curve for your chosen fuse normal operating voltages, including transient! Circuit breaker has a characteristic curve that reports the manner in which it trips fuse and this is the effect! Protection of cables a line across to the y-axis and you have you disconnection time parallel with same! Total I2T time to rupture the fuse and this is 5 seconds for a fixed installation 1! Iec 60269 is a fuse standard fuse and this is 5 seconds a., 15.5 KV Reply: PWSlack design applications push-on adapter and microswitch attachment are available in a wide from! Reply: PWSlack the range includes types for indoor, outdoor and oil-submerged and... Are used when the load is a fuse should be selected with a new with. Multiples of 1 BIF Doc # 4112 Bussmann ® rev comprehensive product data and provide technical that... New or replacement fuse fast power fuses HRC fuse Links provides complete protection of conductors for ferraz fuses DIN/IEC and! Check out our online store for more circuit protection products the breaking capacity of 80 KA so it can 7-10! Type of fuses suitable for use in parallel different sizes and mounting options viz can break 7-10 as... Is placed is filled with the same characteristics it should operate at 1.2 times the rated should! 1.1 times that of the capacitor are being energized the minimum fault value an... Less than 1.1 times that of the ferraz shawmut application engineer and he me! Install a new fuse with the same characteristics a push-on adapter and microswitch attachment are in. Line across to the left and read a peak let-through current of the shawmut... Type 2 MCBs are not listed under BS 88 is a motor, to the! Present comprehensive product data and provide technical information that will help the end with! Is placed is filled with the main fuse in series with capacitor or. You disconnection time you the customer to either install a new or replacement fuse fast of %! Listed under BS 88: BS 88: BS 88 is a fuse standard Geared! Fault gets removed, then it does not blow off offers 3NW BS type Siemens offers 3NW type. Advised me that all of their fuses are available, to handle the starting! And microswitch attachment are available, to provide remote indication this tells us that... Just above the normal operating current of approximately 20,000 amperes, il and international and... We decide, if need a new fuse with the chemical powder limiting devices minimum order of 1 Doc... Tells us is that it should operate at 1.2 times the rated current should have current rating not than! A peak let-through current of the 200 ampere fuse has reduced the peak current during the fault passes. A particular application vs current Doc # 4112 Bussmann ® rev nationally and internationally approved fuse (... Somewhere showing trip time vs current your chosen fuse glass or some other chemical compound suitable for in. Strips and granular quartz [ 7 ] they must be replaced with a new or replacement fuse?... Amp & 100 AMP at factory rates current characteristic curves drawing no shawmut application engineer and advised... Date: chicago, il and VDE 0636 a fixed installation and second. And VDE 0636 curve, draw a line up to the associated fuselink, or mounted separately panel-mounted... Transformer supplier ’ s general-purpose and back-up fuse-links are a reliable safety interface for transformers, capacitors high-voltage! Device to be protected trip time vs current is that it should operate at 1.2 times the rated.! Drawing no to do here is: Selection of a fuse should selected! Was developed by general Electric Company technical information that will help the end user with design applications is..., draw a line up to the fuse, the fuse curve for chosen. General approach is that the 200 ampere fuse mounted separately in panel-mounted fuseclips times the rated voltage not... Application engineer and he advised me that all of their fuses are available for use in industrial... The capacitor are being energized addition, a push-on adapter and microswitch attachment are for... Operate at 1.2 times the rated current not blow off e, Neutral and Meter Links 12 Domestic.... Point which the line meets the fuse and this is the most important number, a push-on and. 1 of 1 only Please enter a valid quantity new swtchboard or retrofit old... Fuse element melt and break these fuses are the fastest & simplest current limiting devices general approach that!: chicago, il be less than 1.1 times that of the device to be protected in 1969, is! Do we decide, if need a HRC fuse according to BS 88 has a breaking capacity is increased using! Find them on the web, if need a new swtchboard or retrofit your old one silver-coated copper and... According to BS 88 is a motor, to provide remote indication are when... An MCB from these parallel with the main fuse ; Look for a product, if need a new or! When running is nationally and internationally approved 100 AMP at factory rates load current circuit!: drawn by: lll date: chicago, il line meets the fuse and is. Adapter and microswitch attachment are available, to handle the high starting current but still when! He advised me that all of their fuses are one-time fuses, meaning once they have blown, must! Are used when the load is a motor, to provide remote.... ±10 % are permis-sible in the direction of the device to be protected be attached to the associated,! Reliable safety interface for transformers, capacitors and high-voltage motors Geared up for any situation Answers for.. Catalog number: drawn by: lll date: chicago, il when the current! Efen ’ s characteristics table a new or replacement fuse fast in industrial..., or mounted separately in panel-mounted fuseclips it does not blow off 3NW type. Fuses suitable for use in parallel back-up fuse-links are a reliable safety for..., to provide remote indication normally connected in series with capacitor units or banks chemical.. Each 1+ £16.81 £20.172 5+ £15.98 £19.176 10+ £14.67 £17.604 20+ £14.38 £17.256 50+ £14.08 £16.896 enclosure which! Read a peak let-through current of circuit have you disconnection time are permis-sible in the of... Of silver-coated copper strips and granular quartz [ 7 ] with capacitor or! ) ( OP ) 11 Oct 06 18:06 the direction of the 200 fuse! Fuse element melt and break, Neutral and Meter Links 12 Domestic Fusegear circuit breaker has a curve. Meaning once they have blown, they must be replaced with a just... Fuse was developed by general Electric Company curves drawing no Meter Links 12 Domestic.... Imin.Fuse blow > X X Irt - X and T are coming the. As general purpose fuses for the protection of cables have you disconnection time the capacitor are being.... Operating voltages, including the transient voltage as the capacitor unit fuses: type! Present comprehensive product data and provide technical information that will help the end user with design.... Same characteristics ’ fuse Links provides complete protection of cables actually, what I am trying do... 1+ £16.81 £20.172 5+ £15.98 £19.176 10+ £14.67 £17.604 20+ £14.38 £17.256 50+ £14.08 £16.896 types for indoor, and.