HRCII CURRENT LIMITING FUSES 600V a.c. or less, 250V d.c. 200,000 A.I.R. to CSA C22.2 No. 106 M92 Edison HRCII Fuses - Engineered for long life reliable protection. For full no damage protection under all fault conditions - Non deteriorating silver plated links. (Type 2 Coordination - per IEC 947-4), and to avoid nui- - High grade ceramic bodies. sance fuse operation, the fuse, relay and contactor charac- - Plated external metalwork. teristics must be considered together to ensure that: - Interrupting rating certified to 200,000 Amps RMS sym- - the contactor is protected at all times metrical, to CSA C22.2 No. 106M1992. - the overload relay operates before the fuse (up to the - HRCII fuse manufacturing is certified to ISO 9002 (1987) relays safe interrupting limit), or standard. - the fuse safely clears the circuit and limits high level fault currents to prevent damage to the relay or to the Applications contactor. HRCII fuses are often used to protect motor control circuits, together with contactors and overload protection relays. This is particularly necessary in the case of IEC style con- tactors, which require more accurate coordination to ensure In this application overload protection of the installation is optimum system reliability. provided by the thermal overload relay, and the fuses are usually rated higher than the motor full load current to avoid In addition CSA certified, Edison HRCII fuses are also test- nuisance blowing under starting inrush currents. ed and certified to IEC and British standards. IEC269:2 and BS88:2 include tightly specified characteristics to ensure full This arrangement allows the use of a fast-acting *fuse char- interchangeability with other manufacturers HRCII fuses acteristic which ensures excellent short-circuit current and certified to these standards. energy limiting for optimum protection. For further information on fuse selection and coordination *CSA defined HRCII characteristics inherently give more time delay than contact your local Edison Fusegear representative. HRCI fast acting fuses. Cross Reference AMPERE RATING EDISON DORMAN* GEC/ENGLISH FUSETEK GOULD BUSSMANN SIEMENS 2-30 H07C AAO CIA 2CO FES, GIA CGL 3NW211 40-60 K07C BAO CIS 2CO FES, GIS CGL 2NW212 80-100 L14C CEO CCP 2CO FES, GCP CGL 3NW213 + 80-100 L09C CD CC 2CM FESC, GC 2NW222 125-200 M09C DD CF 2CC FESC, GF CGL 3NW223 + 125-200 M14C DEO CFP 2CM FES, GFP 3NW214 250-400 P11C EF CM 2CC FESC, GM CGL 3NW231 + 250-400 P09C ED CMF 2CM FESF, GMF 3NW224 450-600 R11C FF CLM 2CC FESC, GLM CGL 3NW233 *HRCII fuses manufactured by Dorman Smith now available as Edison. + HRCII-MISC. 102AMPERE RATING HRCII CURRENT LIMITING FUSES Motor Starting Time/Current-Curves Edison Maximum Full Load Current of Motor AMPERE HRCII Fuse Full Voltage Starting Reduced Voltage RATING 1,000 Amp Rating Normal Duty Heavy Duty Starting H07C 2 .58 .5 1.0 4 1.3 1.1 2.1 6 1.9 1.6 3.1 10 4.0 3.3 6.3 100 15 7.2 5.9 11.0 20 9.2 7.3 14.0 25 13.0 9.9 19.0 30 17.0 13.0 25.0 K07C 10 40 20.0 16.0 31.0 50 28.0 21.0 40.0 60 37.0 29.0 54.0 L14C/LO9C K07CR 1 80 53.0 41.0 77.0 100 67.0 51.0 97.0 M09C/M14C 125 85.0 67.0 125.0 150 108.0 86.0 150.0 200 142.0 109.0 200.0 .1 P11C/P09C 150 177.0 140.0 250.0 300 225.0 176.0 300.0 350 255.0 199.0 350.0 400 300.0 236.0 400.0 .01 R11C 450 383.0 300.0 450.0 500 417.0 321.0 500.0 CURRENT IN AMPERES 600 550.0 429.0 600.0 Energy Let-Through Curves Peak Let-Through Curves 2 Total I t at 600V 100 600 2 400 Total I t at 460V 200 1,000,000 2 Pre-Arcing I t 100 60 10 30 100,000 1 10,000 .1 1,000 .01 100 PROSPECTIVE CURRENT (SYM. RMS KA) FUSE RATING (AMPERES) 103 PEAK CURRENT (KA) .1 1 10 100 2 2 AMPERE SECONDS (I t) TIME IN SECONDS 10 30 30 100 60 100 60 200 400 100 1,000 600 200 400 10,000 600 100,000