66 grb 66 V AC grb - from up to 3 A Size: x38 The fuse preselection table below indicates: Fuse preselection Rated current Pre-arcing I²t Total I²t at 66VAC I N (A) I²t p (A²s) I²t (A²s) - rated current (or ) I N - pre-arcing I²t (I²t p ) at ms - total ope I²t (I²tt) at 66 V, cos ϕ=.5, and for a total ope time from 8 to ms - dissipated power P N at the rated current I N, and at.8 I N,in steady state - Nominal breaking capacity, checked by tests made in accordance with IEC standard. Dissipated power Peak arc voltage Breaking capacity at I N at.8 I N (V) I (ka) - 32 298
66 grb Maximum values of total ope I²t and total ope times Arc voltage Multiplier coefficient - 32 299
66 grb Time-current characteristics ( to 6 A) Time-current characteristics (8 to 3 A) -32 Cut-off characteristics Cut-off characteristics 3
66 grb DC working voltage possibilities Dimensions / Reference / Ref. No. Rating (A) Catalog Number Ref. Number 66 grb - A7 grb T3 W33 66 grb -,25,25 A7 g RB.25 T3 X33 Above: Curve indicating the maximum time constant L/R of the fault path as a function of the DC voltage U, for the rated currents from to 3 A of this range. Far left (top and bottom): Curves indicate, for each rated current, pre-arcing time as a function of RMS value of pre-arcing current I. Tolerances on this current: ±% = s from to 6 A ±9% = s from 8 to 3 A Fuses with gr characteristics can eliminate all overloads. They do not show any minimum breaking capacity but limit currents of non-operation or operation in compliance with standard VDE 636/23. Near left (top and bottom): Curves indicate, for each rated current, the peak value Ic that the current may reach as a function of prospective fault current Ip. 66 grb -,5,5 A7 grb.5 T3 Y332 Without trip-indicator Max. weight g 66 grb -2 2 A7 grb 2 T3 Z333 66 grb -2,5 2,5 A7 grb 2.5 T3 A334 66 grb -3 3 A7 grb 3 T3 B335 66 grb -4 4 A7 grb 4 T3 C336 66 grb -5 5 A7 grb 5 T3 D337 66 grb -6 6 A7 grb 6 T3 E338 66 grb -8 8 A7 grb 8 T3 F339 66 grb - A7 grb T3 G33 66 grb -2,5 2,5 A7 grb 2.5 T3 H33 66 grb -6 6 A7 grb 6 T3 J332 66 grb -2 2 A7 grb 2 T3 K333 66 grb -25 25 A7 grb 25 T3 L334 66 grb -3 3 A7 grb 3T3 M335 66 grb -32 32 A7 grb 32T3 Y33278 Packaging: per pieces Ø,3 ±, (.3/32 ) Note: fuses bear European and American reference. 38 ±,6 (-½ ) See Fuse Blocks and Fuse Holders, and Medium Voltage fuse clips 3
6.6-6.62 cp UR 66 V AC URC - URD from 6 up to A Sizes: 4x5-22x58 Voltage U N (VAC) 66 V EXTREMELY HIGH INTERRUPTING RATING FUSES: PROTECTION OF POWER SEMI CONDUCTORS COMPLYING WITH IEC STANDARD269. AND 4 66 V AC VOLTAGE RATING ar-class ACCORDING TO VDE 636-23 AND IEC 269.4 TWO MODELS ACCORDING TO NF C 632 AND 632 WITH AND WITHOUT BUILT-IN BLOWN FUSE TRIP-INDICATOR FOR SIZES 4 x 5 AND 22 x 58 UL RECOGNIZED Size 4 x 5 22 x 58 Class Current I N (A) 6 8 2 6 2 25 32 4 () 5 () URC URD URD (EXCEPT 6 A)* 4 (2) 5 (2) 25 32 4 5 63 8 MAIN CHARACTERISTICS Pre-arcing I 2 t @ ms I 2 t p (A 2 s).3 2.4 4.3 5.4 3.2 27 53 98 3 28 3 28 22 49 88 55 35 73 56 Total clearing I 2 t @ (A 2 s) 66 V 7.5* 27.5 4 6 6 275 5 7 5 7 I N < I p < 3 I N I p 3 I N 85 7 85 5 25 275 48 8 85 38 8 Watts loss.8 I N I N..6 2 2.45 2.7 2.9 3.2 3.9 6 6.3 6 6.3 5.2 5.7 6.8 7.8 8.4 9.4 2 2.8 3.5 4.4 4.8 5.2 5.8 7.7.6.7.6 3 4.9 6 7.8 9 Tested interrupting ka @ 66 V ka @ 66 V ka @ 66 V * Without trip-indicator I 2 t : 5 A 2 s. () No trip-indicator available for this model. (2) Models available only with trip-indicator. Minimum ope voltage for built-in trip-indicator: 2 V. 32
6.6-6.62 cp UR All the fuses presented on this page are 4x5 - Without blown fuse indication Current Rating Catalog Number (except 6 A)* Ref. Number Ø 4,3 Ø 4,3 Ø 22,2 5 5 7 mini Ø 5 6 A 6.6 CP URC 4.5/6* K8475 8 A 6.6 CP URC 4.5/8 S9392 A 6.6 CP URC 4.5/ T9393 2 A 6.6 CP URC 4.5/2 V9394 6 A 6.6 CP URC 4.5/6 W9395 2 A 6.6 CP URC 4.5/2 X9396 25 A 6.6 CP URC 4.5/25 Y9397 32 A 6.6 CP URC 4.5/32 Z9398 4 A 6.6 CP URC 4.5/4 A9399 5 A 6.6 CP URC 4.5/5 B939 4x5 - With blown fuse trip-indicator Current Rating Catalog Number Ref. Number 22x58 - Without blown fuse indication 58 Weight : 8g Packaging : pieces Weight : 8g Packaging : pieces 6 A 6.62 CP URC 4.5/6* G858 8 A 6.62 CP URC 4.5/8 C939 A 6.62 CP URC 4.5/ D9392 2 A 6.62 CP URC 4.5/2 E9393 6 A 6.62 CP URC 4.5/6 F9394 2 A 6.62 CP URC 4.5/2 G9395 25 A 6.62 CP URC 4.5/25 H9396 32 A 6.62 CP URC 4.5/32 J9397 4 A 6.62 CP URD 4.5/4 T36 5 A 6.62 CP URD 4.5/5 V37 Current Rating Catalog Number Weight: 57 g Packaging: pieces Ref. Number 25 A 6.6 CP URD 22x58/25 B93956 32 A 6.6 CP URD 22x58/32 Z94828 4 A 6.6 CP URD 22x58/4 S94822 5 A 6.6 CP URD 22x58/5 W94779 63 A 6.6 CP URD 22x58/63 T94823 8 A 6.6 CP URD 22x58/8 A94829 A 6.6 CP URD 22x58/ Y94827 22x58 - With blown fuse trip-indicator Current Rating Catalog Number Ref. Number Ø 22,2 58 7 mini Ø 5 25 A 6.62 CP URD 22x58/ 25 H938 32 A 6.62 CP URD 22x58/ 32 C93957 4 A 6.62 CP URD 22x58/ 4 J9382 5 A 6.62 CP URD 22x58/ 5 D93958 63 A 6.62 CP URD 22x58/ 63 K9383 Weight: 57 g Packaging: pieces 8 A 6.62 CP URD 22x58/ 8 E93959 A 6.62 CP URD 22x58/ F9396 See Fuse Blocks and Fuse Holders section and Medium Voltage fuse clips 33
6.6-6.62 cp UR Time vs current characteristics 4x5 URC 4x5 URD 22x58 URD a = 3 B =,25 A2 =,6 B2 =,6 Cf3 =,8 a = 3 B =,25 A2 =,6 B2 =,6 Cf3 =,8 a = 3 B =,25 A2 =,6 B2 =,6 Cf3 =,8 These curves indicate, for each rated current, pre-arcing time vs. R.M.S. pre-arcing current. Corrective factor - Peak arc voltage Corrective factor Tolerance for mean pre-arcing current ± % 4x5 URC - URD 4x5 URC - URD Peak arc voltage The mean curves show the variation of the total clearing time (I 2 t t ) and the total clearing duration tt as a function of ope voltage U. This curve shows the peak value Um of the arc voltage which appears across the fuse-link as a function of the ope voltage U @ cos ϕ =.5. K,2,8,6,4,2 22x58 URD 22x58 URD Um(V) 2 6 2 8 4 2 3 4 5 6 7 2 3 4 5 6 7 34
6.6-6.62 cp UR DC Application data 4x5 URC - URD 4x5 URC - URD L R (ms) 8 7 6 5 4 3 2 L R (ms) 8 7 6 5 4 3 2 2 3 4 5 6 22x58 URD Um(V) Minimum breaking current: see time-current characteristics 2 3 4 5 6 Um(V) 9 8 7 6 9 8 7 6 5 2 3 2 4 3 4 5 6 22x58 URD 5 6 7 This curve indicates the permissible value of time constant L/R as a function of DC working voltage This curve shows the peak value Um of the arc voltage which appears across the fuse-link as a function of the ope voltage U. 35
6.6-6.62 cp URG 6 V - 66 V AC URGB - URGA - from 8 to A Sizes: 4x5-22x58 Voltage U N ( VAC ) 66 V EXTREMELY HIGH INTERRUPTING RATING FUSES: PROTECTION OF POWER SEMICONDUCTORS AS PER IEC STANDARD 269. AND 4 6 V - 66 V AC VOLTAGE RATING ar CLASS AS PER VDE 636-23 AND IEC 269.4 TWO MODELS COMPLYING WITH NF C 632 AND 632 WITH AND WITHOUT BUILT-IN BLOWN FUSE TRIP-INDICATOR FOR SIZES 4 x 5 AND 22 x 58 Size 4 x 5 22 x 58 Class Current I N (A) 8 2 6 2 25 32 4 5 25 32 4 5 63 8 * MAIN CHARACTERISTICS Pre-arcing I 2 t @ ms I 2 t p (A 2 s) 3.3 6. 9.3 5.6 3. 53.5 24 48 45 84 5 27 595 65 25 Total clearing I 2 t @ A 2 s 66 V Ip 3 I N Ip > 3 I N 2 7 37 3 75 6 95 75 75 45 3 25 55 46 5 94 255 27 2 4 7 27 277 55 9* URGB URGA Watts loss,8 I N I N.45.85 2.5 3.4 4 4.7 5.7 6.2 7 4.7 5.7 7. 8.7 9.8 2 4.2 2.7 3.4 4.6 6.2 7.4 8.6.6.5 3 8.5.3 2.8 5.7 7.7 2.7 25.6 Tested interrupting 2 ka @ 66 V 2 ka @ 66 V 6 V *Ope voltage limited to 6 V for the model with blown fuse trip-indicator / Total clearing I 2 t @ 6 V = 9 A 2 s Minimum ope voltage for built-in trip-indicator: 2 V 36
REFERENCES 6.6-6.62 cp URG 4x5 - Without blown fuse trip-indicator Current Rating Catalog Number Ref. Number Ø 4,3 Ø 22,2 Ø 4,3 5 7 mini Ø 5 8 A 6 6 CP URGB 4.5/8 T 7833 A 6.6 CP URGB 4.5/ V 7834 2 A 6.6 CP URGB 4.5/2 W 7835 6 A 6.6 CP URGB 4.5/6 X 7836 2 A 6.6 CP URGB 4.5/2 Y 7837 25 A 6.6 CP URGB 4.5/25 Z 7838 32 A 6.6 CP URGB 4.5/32 A 7839 4 A 6.6 CP URGB 4.5/4 B 784 5 A 6.6 CP URGB 4.5/5 C 784 4x5 - With blown fuse trip-indicator Current Rating Catalog Number Ref. Number 22x58 - Without blown fuse trip-indicator 58 5 Weight: 8 g Packaging: pieces Weight: 8 g Packaging: pieces 8 A 6.62 CP URGB 4.5/8 D 7842 A 6.62 CP URGB 4.5/ E 7843 2 A 6.62 CP URGB 4.5/2 F 7844 6 A 6.62 CP URGB 4.5/6 G 7845 2 A 6.62 CP URGB 4.5/2 H 7846 25 A 6.62 CP URGB 4.5/25 J 7847 32 A 6.62 CP URGB 4.5/32 K 7848 4 A 6.62 CP URGB 4.5/4 L 7849 5 A 6.62 CP URGB 4.5/5 M 785 Current Rating Catalog Number Weight: 57 g Packaging: pieces Ref. Number 25 A 6.6 CP URGA 22.58/25 C 95245 32 A 6.6 CP URGA 22.58/32 D 95246 4 A 6.6 CP URGA 22.58/4 E 95247 5 A 6.6 CP URGA 22.58/5 F 95248 63 A 6.6 CP URGA 22.58/63 G 95249 8 A 6.6 CP URGA 22.58/8 H 9525 A 6.6 CP URGA 22.58/ N 785 22x58 - With blown fuse trip-indicator Current Rating Catalog Number Ref. Number 58 7 mini Ø 5 25 A 6.62 CP URGA 22.58/25 T 9526 32 A 6.62 CP URGA 22.58/32 V 9526 4 A 6.62 CP URGA 22.58/4 W 95262 Ø 22,2 5 A 6.62 CP URGA 22.58/5 X 95263 63 A 6.62 CP URGA 22.58/63 Y 95264 Weight: 57 g Packaging: pieces 8 A 6.62 CP URGA 22.58/8 Z 95265 A 62 CP URGA 22.58/ N 98222 See Fuse Blocks and Fuse Holders section and Medium Voltage fuse clips 37
ELECTRICAL CHARACTERISTICS 6.6-6.62 cp URG Time vs current characteristics a = 3 B =,25 A2 =,6 B2 =,6 Cf3 =,8 Tolerance of mean pre-arcing current ± % a = 3 B =,25 A2 =,6 B2 =,6 Cf3 =,8 These curves indicate, for each rated current, pre-arcing time vs. R.M.S. pre-arcing current. Tolerance for mean pre-arcing current ± 8%. 38
Corrective factor - Peak arc voltage 6.6-6.62 cp URG Corrective factor Peak arc voltage K,2,8,6,4,2 K,2 URGB Um(V) 2 2 4 6 2 4 6 8 URGA URGA Um(V) 2 URGB,8,6,4,2 Ip 5 In Ip > 5 In 2 4 6 2 4 6 8 These mean curves show the variation of the total clearing time (I 2 t t ) and the total clearing duration tt as a function of ope voltage U. This curve shows the peak value Um of the arc voltage which appears across the fuse link as a function of ope voltage U @ cos ϕ =.5. 39
6.9-6.92 cp grc-urc 6-69 V ~ grc - URC from to 63 A Size: 4 x 5 Voltage U N ( V ) 69 6 EXTREMELY HIGH INTERRUPTING-RATING FUSES: PROTECTION OF SEMICONDUCTORS COMPLYING WITH IEC STANDARD 269. AND 4 69 V VOLTAGE RATING (CURRENT RATING TO 5 A) AS PER IEC 33 gr CLASS (CURRENT RATING TO 5 A) AS PER VDE 636-23 - CLEARING ALL OVERLOADS - IMPROVED SAFETY AND PROTECTION - ENABLING SELECTIVE COORDINATION AMONG ALL DISTRIBUTION CIRCUIT FUSES ar CLASS (CURRENT RATING 63 A) ACCORDING TO VDE 636-23 AND IEC 269.4 TWO MODELS AS PER NF C 632 AND 632 WITH OR WITHOUT TRIP-INDICATOR grc fuses are 7VAC-DC UL Recognized Class grc URC Current I N ( A ) 2 4 6 8 2 6 2 25 32 4 5 63 Pre-arcing I 2 t @ ms I 2 t p (A 2 s).8/.3*.5/* 7.2/6.7*.4 2.4 4.3 5.4 3 27 53 97 2 39 44 MAIN CHARACTERISTICS Total clearing I 2 t @ UN I 2 t t (A 2 s) 3.5/.4* 6.7/4.3* 33/3* 9 3 44 65 75 3 55 2 225 22 Watts loss.8 I N I N.7.33.77.3.5.75 2.25 2.5 2.75 3. 3.5 4.5 5. 8..35.6.4 2.5 3. 3.3 4.25 4.8 5.25 5.8 7. 8.8 6 Tested interrupting k A @ 69 V k A @ 6 V Estimated interrupting 3k A @ 69 V 3k A @ 6 V * I 2 t values for fuses without trip-indicator. Minimum ope voltage for the trip-indicator : 2 V See Fuse Blocks and Fuse Holders section and Medium Voltage fuse clips 3
6.9-6.92 cp grc-urc 4 X 5 WITHOUT TRIP-INDICATOR Time vs current characteristics t (s) 4 3 2 Ø 4,3 4 X 5 WITH TRIP-INDICATOR Ø 4,3 2 4 5 5 Weight: 8 g Packaging: pieces a= 3 A2=.6 B=.25 B2=.6 Cf3=.8 7 mini Ø 5 Weight: 8 g Packaging: pieces Current 6 8 2 6 2 25 32 4 5 63 I N =63 A, ar class with CC limiting curve. 2 4 6 8 2 6 2 25 32 4 5 2 4 6 8 2 6 2 25 32 4 5 63 Catalog number 6,9 Cp grc 4.5 6,9 Cp grc 4.5 2 6,9 Cp grc 4.5 4 6,9 Cp grc 4.5 6 6,9 Cp grc 4.5 8 6,9 Cp grc 4.5 6,9 Cp grc 4.5 2 6,9 Cp grc 4.5 6 6,9 Cp grc 4.5 2 6,9 Cp grc 4.5 25 6,9 Cp grc 4.5 32 6,9 Cp grc 4.5 4 6,9 Cp grc 4.5 5 6,92 Cp grc 4.5 6,92 Cp grc 4.5 2 6,92 Cp grc 4.5 4 6,92 Cp grc 4.5 6 6,92 Cp grc 4.5 8 6,92 Cp grc 4.5 6,92 Cp grc 4.5 2 6,92 Cp grc 4.5 6 6,92 Cp grc 4.5 2 6,92 Cp grc 4.5 25 6,92 Cp grc 4.5 32 6,92 Cp grc 4.5 4 6,92 Cp grc 4.5 5 62 Cp URC 4.5 63 C C a= 3 A2=.6 B=.25 B2=.6 Cf3=.8 Ref. number E 228 H 8473 J 8474 T 2299 S 2298 R 2297 Q 2296 P 2295 E 22735 N 2294 W 2289 M 2293 L 2292 F 228 L 8476 F 857 B 22939 A 22938 Z 22937 Y 22936 X 22935 W 22934 V 22933 V 2288 M 22949 N 2295 V 229 except 63A - 2-2 3-3 -4 4 2 3 2 3 4 Tolerance for mean pre-arcing current These curves indicate, for each rated current, pre-arcing time vs. R.M.S. prearcing current ± 8% for current 6 to 63 ± % for current, 2, 4 A A 3 I (A)
6.9-6.92 cp grc-urc Total clearing I 2 t I 2 t (A 2 s) K.4 I 2 t corrective factor 5 4 3 2 ms (5 ms) 2 3 4 Ip (A) ms (2,8 ms) 8 ms (2 ms) 7 ms (,5 ms) 6 ms (,3 ms) 5 ms ( ms) 4 ms (,8 ms) 3 ms (,6 ms) 2 ms (,4 ms),5 ms (,3 ms) ms (,2 ms) 5-63 A 4 A 32 A 25 A 2 A 6 A 2 A A 8 A 6 A Horizontal curves show maximum values of total clearing I 2 t (I 2 t t ) for each rated current as a function of prospective current Ip @ 69 V. cosϕ =.5 (for 63 A @ 6 V. cosϕ =.5). Oblique lines indicate total clearing duration Tt, with associated pre-arcing duration in brackets. 4 3 Current limitation curves I C (A) 2 4 6 8 Peak arc voltage Um (V) 2 4 6 8 Ic = 2.5 Ip Ic = 2 Ip 4 A 2 A.2..8.6.4.2 6 4 2 8 6 I C (A) 2 Ic = 2.5 Ip Mean curves showing variation of total clearing time (I 2 t t ) and total clearing duration Tt as a function of ope voltage U. - 63 A - 6 V 2- to 5 A - 69 V U (V) Ic = 2 Ip Curves showing peak value Um of arc voltage which appears across fuse-link as a function of ope voltage U @ cos j =.5 U (V) 63 A 5 A 4 A 32 A 25 A 2 A 6 A 2 A A 8 A 6 A A 2 2 3 4 Ip (A) 2 3 4 Ip (A) Curves show, for each, value of peak let-through current I C as a function of available fault current Ip. 32
6.9-6.92 cp grc-urc DC Application data 9 8 7 6 5 4 3 2 L/R (ms) 2 3 4 5 6 U (V) 9 8 7 6 5 4 3 2 Above. left and center: Curves indicate the permissible value of time constant L/R as a function of DC working voltage: - For,2 and 4 A (grc) Ip,6 I N 2- Ip,6 I N for grc only ( 6 to 5 A) 3- Ip 2,5 I N for grc and URC ( 6 to 63 A) OPTIMAL PROTECTION OF POWER EQUIPMENT Thanks to recent technological developments, Ferraz Shawmut today markets gr-class PROTISTOR fuses capable of clearing all types of overloads, from low multiples of current s up to very high shortcircuit currents. Enhanced performance enables these fuses to provide solutions to many previously unsolved problems in power electronics: protection of cables without the use of additional components, protection of equipment from fire hazards, selective coordination of different fuses within a single power distribution installation... Relay ar gr L/R (ms) 2 3 4 2 3 5 6 NEW gr-class 3s t C A "ar" U (V) 9 8 7 6 5 2 3 4 5 6 U (V) Example: A ar vs. A gr SELECTIVE COORDINATION gr-class semiconductor fuses can be utilized in association with gi and gg-class low voltage power distribution fuses of the same current, installed upstream. In a selectively coordinated distribution installation, melting is limited to the fuse associated with the faulted circuit, while upstream fuses remain intact. This prevents unnecessary down-time due to power blackouts in non-faulted branches. Example of selective coordination- C' 3A minimum interrupting current I 2h t A Um (V) Above, right: Curve indicates peak arc voltage Um which may appear across fuse terminals at working voltage U. A "gr" I gg A gr A gr A Before After M M ar-class vs. gr-class ar-class fuses feature a high minimum interrupting current as compared with their current. The primary time-current characteristic of ar-class fuses is the CC curve, above which another protection device must be associated. The gr-class fuse represents considerably improved performance in semiconductor protection. FERRAZ SHAWMUT EXPERTISE gr-class fuses should be used in the design of low voltage equipment and in the protection of power electronics equipment. Designers can often substitute a gr-class fuse for an ar-class fuse (x38, 4x5, 22x58, PSC and 7x49 DIN8 or BS 88-4) but the reverse is not true: an ar fuse can never replace a gr fuse. Start protecting your new equipment with gr-class fuses today. The application of gr class fuses, with current s less than Amps, offers enhanced protection, safety and reliability, along with reduced risk of replacement errors and assembly costs. 33
6.9-6.92 cp grc-urd 6-69 V ~ grc - URD from 2 to 35 A Size: 22 x 58 Voltage U N ( V ) 69 6 EXTREMELY HIGH INTERRUPTING RATING FUSES: PROTECTION OF SEMICONDUCTORS IN COMPLIANCE WITH IEC STANDARD 269. AND 4 69 V VOLTAGE RATING (CURRENT RATING 2 TO A) AS PER IEC 33 gr CLASS (CURRENT RATING 2 TO A) ACCORDING TO VDE 636-23 - CLEARING ALL OVERLOADS - IMPROVED SAFETY AND PROTECTION - ENABLING SELECTIVE COORDINATION AMONG ALL DISTRIBUTION CIRCUIT FUSES ar CLASS (CURRENT RATING 25 AND 35 A) AS PER VDE 636-23 AND IEC 269.4 TWO MODELS COMPLYING WITH NF C 632 AND 632 WITH OR WITHOUT TRIP-INDICATOR grc FUSES ARE 7VAC-DC UL RECOGNIZED Class grc URD Current I N ( A ) 2 25 32 4 5 63 8 25 35 Pre-arcing I 2 t @ ms I 2 t p (A 2 s) 7 39 72 8 242 43 97 28 29 336 MAIN CHARACTERISTICS Total clearing I 2 t @ UN I 2 t t (A 2 s) 25 28 49 785 39 246 5565 95 4 77 Watts loss.8 I N I N 4. 4.5 5. 5.5 7. 8. 9. 4 5 6.5 7.5 9..5 3.5 5.5 7 22 25 Tested interrupting k A @ 69 V k A @ 6 V Estimated interrupting 3k A @ 69 V 3k A @ 6 V Minimum ope voltage for the trip-indicator: 2 V See Fuse Blocks and Fuse Holders section and Medium Voltage fuse clips 34
6.9-6.92 cp grc-urd 22 X 58 WITHOUT TRIP-INDICATOR Current Catalog Number Ref. Number 22 X 58 WITH TRIP-INDICATOR Time vs current characteristics t (s) 4 3 2 ø 22.2 Ø 22,2 ø 22.2 2 25 32 4 5 63 8 58 58 58 ELECTRICAL CHARACTERISTICS a= 3 A2=.6 B=.25 B2=.6 Cf3=.8 Weight: 57 g Packaging: pieces 7 mini ø 5 Weight: 57 g Packaging: pieces grc 4 3 2 2 25 32 4 5 63 8 Current 2 25 32 4 5 63 8 25 35 t (s) 6,9 CP grc 22.58 2 6,9 CP grc 22.58 25 6,9 CP grc 22.58 32 6,9 CP grc 22.58 4 6,9 CP grc 22.58 5 6,9 CP grc 22.58 63 6,9 CP grc 22.58 8 6,9 CP grc 22.58 Catalog Number 6,92 CP grc 22.58 2 6,92 CP grc 22.58 25 6,92 CP grc 22.58 32 6,92 CP grc 22.58 4 6,92 CP grc 22.58 5 6,92 CP grc 22.58 63 6,92 CP grc 22.58 8 6,92 CP grc 22.58 62 CP URD 22.58 25 62 CP URD 22.58 35 25 35 C C a= 3 A2=.6 B=.25 B2=.6 Cf3=.8 C 2294 B 2296 A 2295 Z 2294 Y 2293 X 2292 Y 2282 W 229 Ref. Number D 22734 G 2292 F 2292 E 2299 D 2298 C 22733 X 2282 C 2297 A 2278 B 2279 except 25 and 35A URD - -2-3 -4 I (A) 2 3 4 These curves indicate, for each rated current, pre-arcing time vs. R.M.S. pre-arcing current 35 - -2-3 -4 2 3 4 Tolerance for mean pre-arcing current ± 9% for all current s I (A)
6.9-6.92 cp grc-urd 5 4 3 2 Total clearing I 2 t I 2 t (A 2 s) 2 3 4 Ip (A) Above: Horizontal curves show, for each rated current, maximum values of total clearing I 2 t (I 2 t t ) as a function of prospective current Ip @ 69 V. cosϕ =.5 (25-35 A @ 6 V.cosϕ =.5) Oblique lines indicate total clearing duration Tt with associated pre-arcing duration in brackets. 4 3 ms (5 ms) ms (2,8 ms) Current limitation curves I C (A) 8 ms (2 ms) 7 ms (,5 ms) 6 ms (,3 ms) 5 ms ( ms) 4 ms (,8 ms) 3 ms (,6 ms) 2 ms (,4 ms),5 ms (,3 ms) ms (,2 ms) 35 A 25 A A 8 A 63 A 5 A 4 A 32 A 25 A 2 A I 2 t corrective factor 2 4 6 8 Peak arc voltage 2 4 6 8 Ic= 2.5 Ip Ic= 2 Ip 35 A 25 A A 8 A 63 A 5 A 4 A 32 A 25 A 2A K.4.2..8.6.4.2 6 4 2 8 6 Um (V) 2 Mean curves showing variation of total clearing time (I 2 t t ) and total clearing duration Tt as a function of ope voltage U. - 25 and 35 A 2-2 to A U (V) Curve showing peak value Um of arc voltage which appears across fuse-link as a function of ope voltage U @ cos j =.5 U (V) Left: Curves show value of peak let-through current I C as a function of the available fault current Ip. 2 2 3 4 5 Ip (A) 36
6.9-6.92 cp grc-urd 9 8 7 6 5 4 3 2 DC Application data L/R (ms) 2 3 4 5 6 7 U (V) OPTIMAL PROTECTION OF POWER EQUIPMENT Thanks to recent technological developments, Ferraz Shawmut today markets gr-class PROTISTOR fuses capable of clearing all types of overloads, from low multiples of current s up to very high shortcircuit currents. Enhanced performance enables these fuses to provide solutions to many previously unsolved problems in power electronics: protection of cables without the use of additional components, protection of equipment from fire hazards, selective coordination of different fuses within a single power distribution installation... Relay ar 2 gr NEW gr-class 2 9 8 7 6 3s Example of selective coordinationt C A "ar" Um (V) 2 3 4 5 6 7 U (V) Above: Curve indicates peak arc voltage Um which may appear across fuse terminals at working voltage U. Example: A ar vs. A gr SELECTIVE COORDINATION gr-class semiconductor fuses can be utilized in association with gi and gg-class low voltage power distribution fuses of the same current, installed upstream. In a selectively coordinated distribution installation, melting is limited to the fuse associated with the faulted circuit, while upstream fuses remain intact. This prevents unnecessary down-time due to power blackouts in non-faulted branches. C' 3A minimum interrupting current I 2h t A A "gr" I gg A gr A gr A Before After M M ar-class vs. gr-class ar-class fuses feature a high minimum interrupting current as compared with their current. The primary time-current characteristic of ar-class fuses is the CC curve, above which another protection device must be associated. The gr-class fuse represents considerably improved performance in semiconductor protection. FERRAZ SHAWMUT EXPERTISE gr-class fuses should be used in the design of low voltage equipment and in the protection of power electronics equipment. Designers can often substitute a gr-class fuse for an ar-class fuse (x38, 4x5, 22x58, PSC and 7x49 DIN8 or BS 88-4) but the reverse is not true: an ar fuse can never replace a gr fuse. Start protecting your new equipment with gr-class fuses today. The application of gr class fuses, with current s less than Amps, offers enhanced protection, safety and reliability, along with reduced risk of replacement errors and assembly costs. 37
62-6.62cp URGD 6 V - 66 V AC URGD - from 63 up to 25A Size: 27x6 EXTREMELY HIGH INTERRUPTING RATING FUSES: PROTECTION OF POWER SEMICONDUCTORS ACCORDING TO IEC STANDARD 269. AND 4 6 V - 66 V AC VOLTAGE RATING ar- CLASS ACCORDING TO VDE 636-23 AND IEC 269.4 Voltage U N ( VAC ) Class Current I N ( A ) Pre-arcing I 2 t @ ms I 2 t p (A 2 s) 63 45 8 86 66 V URGD 62 25 3425 6 648 2 37 6 V URGD 25 296 Minimum ope voltage for trip-indicator: 2 V MAIN CHARACTERISTICS Total clearing I 2 t @ UN I 2 t t (A 2 s) 84 375 68 36 246 65 7 Watts loss.8 I N I N 2 3.5 5 6 7 8.5 2 22 24.6 27 29.5 32.5 35.7 4 Tested interrupting 2 ka @ 66 V 2 ka @ 6 V Ref. Numbers 27x6 - With blown fuse trip-indicatior Type Voltage Current Catalog Number Ref. Number Ø 27 6,3 7 Ø 5 URGD 66 V 63 A 6.62 CP URGD 27x6/ 63 A7682 8 A 6.62 CP URGD 27x6/ 8 B7682 A 6.62 CP URGD 27x6/ C76822 25 A 6.62 CP URGD 27x6/25 D76823 6 A 6.62 CP URGD 27x6/6 E76824 2 A 6.62 CP URGD 27x6/2 F76825 See Fuse Blocks and Fuse Holders section and Medium Voltage Fuse Clips URGD 6 V 25 A 62 CP URGD 27x6/25 W76264 38
62-6.62cp URGD Time vs current characteristics K,2,8,6,4,2 Corrective factor 63 to 2A URGD 2 4 6 25A URGD K,2 Tolerance for mean pre-arcing current ± 8% These curves indicate, for each rated current, pre-arcing time vs. R.M.S. pre-arcing current. Left: Mean curves showing variation of total clearing time (I 2 t t ) and the total clearing duration tt as a function of the ope voltage U. Um(V) 2 Um(V) 2 Peak arc voltage 63 to 2A URGD 2 3 4 5 6 7 25A URGD Left: Curves show peak value Um of arc voltage which appears across the fuse-link as a function of ope voltage U @ cos ϕ =.5.,8,6,4,2 2 3 4 5 6 2 3 4 5 6 7 39
6.62cp URQ URS - 2cp URQ 66 V - V AC URB - URQ - URS from 32 to 25 A Size: 27x6 EXTREMELY HIGH INTERRUPTING RATING FUSES: PROTECTION OF POWER SEMI CONDUCTORS ACCORDING TO IEC STANDARD 269. AND 4 66 V - V AC VOLTAGE RATING ar-class ACCORDING TO VDE 636-23 AND IEC 269.4 66V URQ and V URB are UL RECOGNIZED Voltage U N (VAC) 66 V V Class Current I N (A) 5 63 8 25 6 2 25 25 6 32 4 5 63 8 25 6 7 Pre-arcing I 2 t @ ms I 2 t p (A 2 s) 55 35 625 4 35 658 557 279 55 33 6 2 435 975 9 389 47 Total clearing I 2 t @ UN I 2 t t (A 2 s) 6 86 88 32 697 5 3 63 3 24 25 45 84 47 33 6 25 267 36 Watts loss,8 I N I N URQ URS URB MAIN CHARACTERISTICS 8.4. 2.6 4.2 5.7 7.7 9.4 22.6 4.5 7.5 7.4 8.7 9.7.3 2.3 4 6 8 9 6 2 24 27 3 34 38 45 25 3 4.5 7 9 22 24 27 3 35 37 Tested interrupting 2 ka @ 66 V ka @ V * Minimum ope voltage for trip-indicator: 2 V 32
6.62cp URQ-URS - 2cp URB Ø 27 27x6 - With blown fuse trip-indicatior Type Voltage Current Catalog Number Ref. Number 5 A 63 A 8 A 6.62 CP URQ 27x6/ 5 6.62 CP URQ 27x6/ 63 6.62 CP URQ 27x6/ 8 N75958 V7639 W763 A 6.62 CP URQ 27x6/ R7833 25 A 6.62 CP URQ 27x6/25 S7833 6 A 6.62 CP URQ 27x6/6 X763 6,3 7 2 A 6.62 CP URQ 27x6/2 T78332 25 A 6.62 CP URQ 27x6/25 T7638 Ø 5 URS 66 V 25 A 6 A 32 A 4 A 6.62 CP URS 27x6/25 6.62 CP URS 27x6/6 2 CP URB 27x6/ 32 2 CP URB 27x6/ 4 P29865 Q29866 S8298 R8297 URB V 5 A 63 A 8 A A 25 A 6 A 7 A 2 CP URB 27x6/ 5 2 CP URB 27x6/ 63 2 CP URB 27x6/ 8 2 CP URB 27x6/ 2 CP URB 27x6/25 2 CP URB 27x6/6 2 CP URB 27x6/7 Q8296 P8295 N8294 M8293 L8292 K829 Z8338 See Fuse Blocks and Fuse Holders section and Medium Voltage fuse clips URQ 66 V Except 25 and 6A URS 32
6.62cp URQ - 2cp URB Time vs current characteristics a = 3 B =,25 A2 =,6 B2 =,6 Cf3 =,8 a = 3 B =,25 A2 =,6 B2 =,6 Cf3 =,8 a = 3 B =,25 A2 =,6 B2 =,6 Cf3 =,8 4 3 2 - -2-3 2 3 4 5 I (A) These curves indicate, for each rated current, pre-arcing time vs. R.M.S. pre-arcing current. Tolerance for mean pre-arcing current ± 8%. 322-4
k Semiconductor Fuses 6.62cp URQ - 2cp URB Peak arc voltage 5 to 2 A URQ 25 A URQ 32 to7 A URB 25-6A URS 5 Um(V) 2 Um(V) 2 Um(V) 2 3 These curves show peak value Um of arc voltage which appears across the fuse-link as a function of ope voltage U @ cos ϕ =.5. Corrective factor 5 to 2 A URQ 25 A URQ 32 to7 A URB K K K,2,8,6,4,2 2 3 4 5 6 7 2 4 6,2,8,6,4 Above: Mean curves show variation of total clearing time (I 2 t t ) and total clearing duration tt as a function of ope voltage U. DC Application data,2 2 3 4 5 6 2 3 4 5 6 7,2,8,6,4,2 5 6 7 8 9 2 4 6 8.2.8.6.4.2 Um (V) 9 7 5 2 3 4 5 6 7 8 U (V) 25-6A URS 2 3 4 5 6 7 8 9 U (V) L R (ms) 8 In <= 6 A 7 6 5 4 In <= 2 A In <= 25 A 3 2 Left: Curves indicate permissible value of time constant L/R as a function of the DC working voltage 2 3 4 5 6 323