x38 grb - 69VAC 69V AC grb - from up to 3 A Size: x38 The fuse preselection table below indicates: - rated current (or rating) I N - pre-arcing I 2 t (I 2 t p ) at ms - total operating I 2 t (I 2 tt) at 69V, cos ϕ=.5, and for a total operating 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. Voltage Rating Rated current Pre-arcing I2 t Total I 2 t at 66VAC Dissipated power Peak arc voltage Breaking capacity at In at.8 In (VAC) In (A) I 2 tp (A2s) I 2 tt (A2s) (V) I (ka) (W) (W),75,28,9,52,25,5,36,25,7,5,85,57,5,8 2,42,3 2, 25 2,5,88 2,7 2,,5 3,55 4,6 2,3,25 4 4 2 2,6,35 6 ka 69 5 8,6 25 2,7,4 69 V 6 5 44 2,9,5 (IEC) 8 3,3 33 2,4,35 5,4 55 3,4,85 2,5 8,5 82 3,4,9 45 6 6 45 4, 2,3 2 23 25 4,3 2,4 25 58 47 4,7 2,7 3 (32*) 96 74 5 2,9 * Non approval rating SCAC66
French Ferrule x38 grb - 69VAC Maximum values of total operating I 2 t and total operating times - 32 Arc voltage Multiplier coefficient SCAC67
x38 grb - 69VAC Time-current characteristics ( to 6 A) Cut-off characteristics Time-current characteristics (8 to 3 A) -32 Cut-off characteristics SCAC68
x38 grb - 69VAC Dimensions / Reference / Ref. No. Rating (A) Designation Ref. Number Catalog Number 6,9 grc - - A7 grc T3 Z33279,25 6,9 grb -,25 - A7 grb.25 T3 X33,5 6,9 grb -,5 - A7 grb.5 T3 Y332 2 6,9 grb -2 - A7 grb 2 T3 Z333 2,5 6,9 grb -2,5 - A7 grb 2.5 T3 A334 3 6,9 grb -3 - A7 grb 3 T3 B335 4 6,9 grb -4 - A7 grb 4 T3 C336 5 6,9 grb -5 - A7 grb 5 T3 D337 6 6,9 grb -6 - A7 grb 6 T3 E338 8 6,9 grb -8 - A7 grb 8 T3 F339 6,9 grb - - A7 grb T3 G33 2,5 6,9 grb -2,5 - A7 grb 2.5 T3 H33 6 6,9 grb -6 - A7 grb 6 T3 J332 2 6,9 grb -2 - A7 grb 2 T3 K333 25 6,9 grb -25 - A7 grb 25 T3 L334 3 6,9 grb -3 - A7 grb 3T3 M335 32* 6,9 grb -32 - A7 grb 32T3 Y33278 * Non approval rating DC working voltage possibilities FRGB69V FRGB69V.25 FRGB69V.5 FRGB69V2 FRGB69V2.5 FRGB69V3 FRGB69V4 FRGB69V5 FRGB69V6 FRGB69V8 FRGB69V FRGB69V2.5 FRGB69V6 FRGB69V2 FRGB69V25 FRGB69V3 FRGB69V32 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. Time-current characteristics: Curves indicate, for each rated current, pre-arcing time as a function of RMS value of pre-arcing current I. Tolerances on this current: ±% = ratings from to 6 A ±9% = ratings 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. Cut off characteristics: Curves indicate, for each rated current, the peak value Ic that the current may reach as a function of prospective fault current Ip. Without trip-indicator Max. weight g Packaging: per pieces Ø,3 ±, (.3/32 ) 38 ±,6 (- /2 ) SCAC69
emiconductor fuses x38 URB/URD/URL - 5 to 6 VAC Extremely high breaking capacity fuses: Protection of power semiconductors complying with IEC standard 6269. and 4. 5-6 VAC voltage rating ar-class according to VDE 636-23 IEC 6269-4 Without blown fuse indication. up to.8 A** With trip-indicator ( to 3 A), a Ferraz Shawmut speciality* Main Characteristics Voltage rating U N ( VAC ) 6 V without blown fuse indicator 5 V with trip-indicator Class URD ** URD URD URL Current rating I N ( A ) ma 25 ma 6 ma 2 ma 25 ma 35 ma 4 ma 5 ma 63 ma 8 ma A.25 A.6 A 2 A 2.5 A 3.5 A 4 A 5 A 6 A 8 A A 2 A 6 A 2 A 25 A 3 A Pre-arcing I 2 t @ ms I 2 tp (A 2 s).4.3.3.65.65 2.8 5.3 2.7.3 2.3 3.6 5.25 9.3 6 37 58 Total clearing I 2 t @ U N I 2 tt (A 2 s).2-3 2.3-3 5.2-3 8-3 8-3 33-3 56-3..8.44 3.6.7 2.2 3. 5.9 9 6 36 47 8 5 2 29 58 9 Watts loss.8 I N I N.23.25.28.34.35.42.46.46.52.58 2.8.52.58.63.63.86...73.,83.3.7.7 2.9 3.5.4.44.48.58.6.73.8.8.9.5.9...5.8.8.35.55.9 2.3 3. 3.2 4.25 5. Tested breaking capacity 2 ka @ 6 V 5 ka @ 5 V 5 ka @ 5 V 5 ka @ 5 V * minimum operating voltage for trip-indicator: 2 V ** higher ratings without blown fuse indicator see x38grb - 69 VAC SCAC7
x38 URB/URD - 5 to 6 VAC.3x38 - Without blown fuse indicator Current Rating Designation Ref. Number Catalog Number ma A 6 URD.T3 H77632 25 ma A 6 URD.25T3 J77633 6 ma A 6 URD.6T3 K77634 2 ma A 6 URD.2T3 L77635 25 ma A 6 URD.25T3 M77636 35 ma A 6 URD.35T3 N77637 4 ma A 6 URD.4T3 P77638 5 ma A 6 URD.5T3* Q77639 63 ma A 6 URD.63T3* R7764 8 ma A 6 URD.8T3* S7764 * UL Recognized Fuses mounted in clips or fuse disconnectors A6UD.T3 A6UD.25T3 A6UD.6T3 A6UD.2T3 A6UD.25T3 A6UD.35T3 A6UD.4T3 A6UD.5T3 A6UD.63T3 A6UD.8T3,3 38,2.3x38 - With trip-indicator Current Rating Designation Ref. Number Catalog Number A A 5 URD T3 I P76925.25 A A 5 URD.2 T3 I H76597.6 A A 5 URD.6 T3 I G76596 2 A A 5 URD 2 T3 I Q76926 2.5 A A 5 URD 2.5 T3 I F76595 3.5 A A 5 URD 3 T3 I R76927 4 A A 5 URD 4 T3 I S76928 5 A A 5 URD 5 T3 I T76929 6 A A 5 URB 6 T3 I V7693 8 A A 5 URB 8 T3 I W7693 A A 5 URB T3 I X76932 2 A A 5 URB 2 T3 I Y76933 6 A A 5 URB 6 T3 I Z76934 2 A A 5 URB 2 T3 I A76935 25 A A 5 URL 25 T3 I B76936 3 A A 5 URL 3 T3 I C76937 A5URDT3I A5URD.2T3I A5URD.6T3I A5URD2T3I A5URD2.5T3I A5URD3T3I A5URD4T3I A5URD5T3I A5URB6T3I A5URB8T3I A5URBT3I A5URB2T3I A5URB6T3I A5URB2T3I A5URL25T3I A5URL3T3I,3 38,2 7 2,5 Fuses with trip indicator mounted in clips SCAC7
x38 URB/URD - 5 to 6 VAC Electrical characteristics Time vs current characteristics WITHOUT BLOWN FUSE INDICATOR WITH TRIP INDICATOR a = 3 A2 =,6 B =,25 B2 =,6 Cf3 =,8 a = 3 A2 =,6 B =,25 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 ± % WITH TRIP INDICATOR WITH TRIP INDICATOR a = 3 A2 =,6 B =,25 B2 =,6 Cf3 =,8 a = 3 A2 =,6 B =,25 B2 =,6 Cf3 =,8 These curves indicate, for each rated current, pre-arcing time vs. R.M.S. pre-arcing current. as a multiple of current rating. SCAC72
x38 URB/URD - 5 to 6 VAC Corrective factor - Peak arc voltage Corrective factor Peak arc voltage K 6 V UR :. up to.8 A,6,2 2 4 6 U(V) 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 operating voltage U. K,2,8,6,4,2 2 3 5 U(V) 5 V UR : up to 5 A 2 : 6 up to 3 A This curve shows the peak value Um of the arc voltage which appears across the fuse link as a function of the operating voltage U @ cos ϕ =.5. D.C. Application data for fuses with trip indicator 5 V URD IN 6A 5 V URD IN 6A L (ms) R 8 7 6 5 4 3 2 2 3 4 5 6 U(V) This curve shows the peak value Um of the arc voltage which appears across the fuse link as a function of the operating voltage U. SCAC73
4x5 grc(urc) - 6 V to 69 VAC 6-69 V ~ grc - URC from to 63 A Size: 4 x 5 EXTREMELY HIGH BREAKING CAPACITY FUSES: PROTECTION OF SEMICONDUCTORS COMPLYING WITH IEC STANDARD 6269. AND 4 6V - 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 6269.4 TWO MODELS: WITH OR WITHOUT TRIP-INDICATOR grc fuses FROM 8 TO 5 A are 7VAC-DC UL Recognized Main Characteristics Voltage rating U N U V Class Current rating I N ( A ) Pre-arcing I 2 t @ ms I 2 tp (A 2 s) Total clearing I 2 t @ U N I 2 tt (A 2 s) Watts loss.8 I N I N Tested Breaking capacity Estimated Breaking capacity 69 grc 2 4 6 8 2 6 2 25 32 4 5.8/.3*.5/* 7.2/6.7*.4 2.4 4.3 5.4 3 27 53 97 2 39 3.5/.4* 6.7/4.3* 33/3* 9 3 44 65 75 3 55 2 225.7.33.77.3.5.75 2.25 2.5 2.75 3. 3.5 4.5 5..35.6.4 2.5 3. 3.3 4.25 4.8 5.25 5.8 7. 8.8 k A @ 69 V 3k A @ 69 V 6 URC 63 44 22 8. 6 k A @ 6 V 3k A @ 6 V * I 2 t values for fuses without trip-indicator. Minimum operating voltage for the trip-indicator : 2 V See Gears and Fuse gears section SCAC74
4x5 grc(urc) - 6 V to 69 VAC 4 X 5 Without trip-indicator Current Rating Designation Ref. Number 6.9 Cp grc 4.5 E228 2 6.9 Cp grc 4.5 2 H8473 4 6.9 Cp grc 4.5 4 J8474 6 6.9 Cp grc 4.5 6 T2299 8 6.9 Cp grc 4.5 8 S2298 6.9 Cp grc 4.5 R2297 2 6.9 Cp grc 4.5 2 Q2296 6 6.9 Cp grc 4.5 6 P2295 2 6.9 Cp grc 4.5 2 E22735 25 6.9 Cp grc 4.5 25 N2294 32 6.9 Cp grc 4.5 32 W2289 4 6.9 Cp grc 4.5 4 M2293 5 6.9 Cp grc 4.5 5 L2292 4 X 5 With trip-indicator 6.92 Cp grc 4.5 F228 2 6.92 Cp grc 4.5 2 L8476 4 6.92 Cp grc 4.5 4 F857 6 6.92 Cp grc 4.5 6 B22939 8 6.92 Cp grc 4.5 8 A22938 6.92 Cp grc 4.5 Z22937 2 6.92 Cp grc 4.5 2 Y22936 6 6.92 Cp grc 4.5 6 X22935 2 6.92 Cp grc 4.5 2 W22934 25 6.92 Cp grc 4.5 25 V22933 32 6.92 Cp grc 4.5 32 V2288 4 6.92 Cp grc 4.5 4 M22949 5 6.92 Cp grc 4.5 5 N2295 63 62 Cp URC 4.5 63 V229 Time vs current characteristics 4 t (s) 2 4 Catalog Number FR4GC69V FR4GC69V2 FR4GC69V4 FR4GC69V6 FR4GC69V8 FR4GC69V FR4GC69V2 FR4GC69V6 FR4GC69V2 FR4GC69V25 FR4GC69V32 FR4GC69V4 FR4GC69V5 FR4GC69VT FR4GC69V2T FR4GC69V4T FR4GC69V6T FR4GC69V8T FR4GC69VT FR4GC69V2T FR4GC69V6T FR4GC69V2T FR4GC69V25T FR4GC69V32T FR4GC69V4T FR4GC69V5T FR4UC6V63T except to 6 and 63A rating 6 8 2 6 2 25 32 4 5 63 Ø 4,3 Ø 4,3 5 I N =63 A, ar class with CC limiting curve. 5 Weight: 8 g Packaging: pieces 7 mini Weight: 8 g Packaging: pieces Ø 5 3 2 a= 3 A2=.6 B=.25 B2=.6 Cf3=.8 a= 3 A2=.6 B=.25 B2=.6 Cf3=.8 C C - -2-3 -4 I (A) 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. ± % for current rating, 2, 4 A pre-arcing current ± 8% for current rating 6 to 63 A SCAC75
4x5 grc(urc) - 6 V to 69 VAC Total clearing I 2 t I 2 t (A 2 s) K.4 I 2 t corrective factor 5 4 ms (5 ms) 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).2..8.6.4 2 Mean curves showing var-iation of total clearing time (I 2 t t ) and total clearing duration Tt as a function of operating voltage U. - 63 A rating - 6 V 2- to 5 A rating - 69 V 3 2 5-63 A 2 3 4 Ip (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. Current limitation curves I C (A).2 6 4 2 2 4 6 8 8 6 Peak arc voltage Um (V) 2 4 6 8 I C (A) 2 U (V) U (V) Curves showing peak value Um of arc voltage which appears across fuse-link as a function of operating voltage U @ cos ϕ =.5-63A rating 6V 2- to 5A rating 69V 4 3 Ic = 2.5 Ip Ic = 2 Ip 4 A 2 A Ic = 2.5 Ip Ic = 2 Ip 63 5 4 32 25 2 6 2 8 6 A 2 2 3 4 Ip (A) 2 3 4 Ip (A) Curves show, for each rating, value of peak let-through current IC as a function of available fault current Ip. SCAC76
4x5 grc(urc) - 6 V to 69 VAC DC Application data 9 8 7 6 5 4 3 2 L/R (ms) 2 3 4 5 6 9 8 7 6 5 4 3 2 L/R (ms) U (V) U (V) Above. left and center: Curves indicate the permissible value of time constant L/R as a function of DC working voltage: - For rating,2 and 4 A (grc) Ip,6 I N 2- Ip,6 I N for grc only (rating 6 to 5 A) 3- Ip 2,5 I N for grc and URC (rating 6 to 63 A) 2 3 4 2 3 5 6 9 8 7 6 5 Um (V) 2 3 4 5 Above, right: Curve indicates peak arc voltage Um which may appear across fuse terminals at working voltage U. 6 U (V) NEW gr-class 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 ratings up to very high short-circuit 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... 3s t C A "ar" C' 3A minimum interrupting current I 2h t A A "gr" I Example: A ar vs. A gr Relay ar 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 rating, 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 nonfaulted branches. gg A Before After Example of selective coordination gr A gr A M M ar-class vs. gr-class ar-class fuses feature a high minimum interrupting current as compared with their current rating. 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 ratings less than Amps, offers enhanced protection, safety and reliability, along with reduced risk of replacement errors and assembly costs. SCAC77
22x58 grc (URD) - 6 V to 69 VAC EXTREMELY BREAKING CAPACITY RATING FUSES: PROTECTION OF SEMICON- DUCTORS IN COMPLIANCE WITH IEC STANDARD 6269. AND 4 6-69 V VOLTAGE RATING (CURRENT RATING 2 TO 35 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 6269.4 TWO MODELS COMPLYING WITH NF C 632 AND 632 WITH OR WITHOUT TRIP-INDICATOR grc FUSES ARE 7VAC-DC UL RECOGNIZED Main Characteristics Voltage rating U N ( V ) Class Current rating I N ( A ) Pre-arcing I 2 t @ ms I 2 tp (A 2 s) Total clearing I 2 t @ U N I 2 tt (A 2 s) Watts loss.8 I N I N Tested Breaking capacity Estimated Breaking capacity 69 grc 2 25 32 4 5 63 8 7 39 72 8 242 43 97 28 25 28 49 785 39 246 5565 95 4. 4.5 5. 5.5 7. 8. 9. 6.5 7.5 9..5 3.5 5.5 7 k A @ 69 V 3k A @ 69 V 6 URD 25 35 29 336 4 77 4 5 22 25 k A @ 6 V 3k A @ 6 V Minimum operating voltage for the trip-indicator: 2 V See Fuse Blocks and Fuse Holders section SCAC78
22x58 grc (URD) - 6 V to 69 VAC 22 X 58 Without trip-indicator 58 Current rating 2 6 2 25 32 4 5 63 8 Designation 6,9 CP grc 22.58 2 6,9 CP grc 22.58 6 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 Ref. Number F23279 G23272 C2294 B2296 A2295 Z2294 Y2293 X2292 Y2282 W229 Catalog Number FR22GC69V2 FR22GC69V6 FR22GC69V2 FR22GC69V25 FR22GC69V32 FR22GC69V4 FR22GC69V5 FR22GC69V63 FR22GC69V8 FR22GC69V ø 22.2 Weight: 57 g Packaging: pieces 22 X 58 With trip-indicator 2 25 32 4 5 63 8 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 D22734 G2292 F2292 E2299 D2298 C22733 X2282 C2297 FR22GC69V2T FR22GC69V25T FR22GC69V32T FR22GC69V4T FR22GC69V5T FR22GC69V63T FR22GC69V8T FR22GC69VT Ø 22,2 58 7 mini Ø 5 25 35 62 CP URD 22.58 25 62 CP URD 22.58 35 A2278 B2279 FR22UD6V25T FR22UD6V35T except 25 and 35A rating Weight: 57 g Packaging: pieces Electrical characteristics Time vs current characteristics 4 3 2 t (s) 2 25 32 4 5 63 8 grc a= 3 A2=.6 B=.25 B2=.6 Cf3=.8 4 3 2 t (s) 25 35 C C URD a= 3 A2=.6 B=.25 B2=.6 Cf3=.8 - -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 - -2-3 -4 2 3 4 Tolerance for mean pre-arcing current ± 9% for all current ratings I (A) SCAC79
22x58 grc (URD) - 6 V to 69 VAC 5 4 Total clearing I 2 t I 2 t (A 2 s) ms (5 ms) 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) 35 A 25 A A 8 A K.4.2..8.6.4.2 I 2 t corrective factor 2 Mean curves showing variation of total clearing time (I 2 t t ) and total clearing duration Tt as a function of operating voltage U. - 25 and 35 A rating 2-2 to A rating 3 63 A 5 A 4 A 32 A 2 4 6 8 Peak arc voltage U (V) 2 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. Current limitation curves I C (A) 25 A 2 A Um (V) 6 2 4 2 8 6 2 4 6 8 Curve showing peak value Um of arc voltage which appears across fuse-link as a function of operating voltage U @ cos ϕ =.5-25 and 35A rating 2-2 to A rating U (V) 4 3 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 Left: Curves show value of peak let-through current IC as a function of the available fault current Ip. 2 2 3 4 5 Ip (A) SCAC8
22x58 grc (URD) - 6 V to 69 VAC DC Application data 9 8 7 6 5 4 3 2 L/R (ms) 2 3 4 5 6 7 U (V) Ces courbes indiquent la constante de temps L/R maximale admissible en fonction de la tension d utilisation Courbe : Ip>,6 I N pour fusibles grc uniquement (calibres de 2 à A) Courbe 2 : Ip>2,5 I N pour fusibles grc et URD NEW gr-class 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 ratings up to very high short-circuit 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 3s t C 2 9 8 7 6 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 rating, 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 nonfaulted branches. Example of selective coordination A "ar" 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 rating. 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 ratings less than Amps, offers enhanced protection, safety and reliability, along with reduced risk of replacement errors and assembly costs. SCAC8
4x5 & 22x58 URC / URD - 6 to 69 VAC EXTREMELY BREAKING CAPACITY RATING FUSES: PROTECTION OF POWER SEMI CONDUCTORS COMPLYING WITH IEC STANDARD 6269. AND 4 6-69 V AC VOLTAGE RATING ar-class ACCORDING TO VDE 636-23 AND IEC 6269.4 WITH AND WITHOUT TRIP-INDICATOR FOR SIZES 4 x 5 AND 22 x 58 UL RECOGNIZED (EXCEPT 6 A)* Main Characteristics Voltage Current Pre-arcing Watts loss rating Size Class rating 2t @ ms Total clearing I 2 t @ Breaking U N (VAC) I N (A) I 2 tp (A 2 s) (A 2 s).8 I N I N Capacity 6.3 7.5* @ 66V. 2 8 2.4 27.5@ 66V.6 2.8 4.3 4@ 66V 2 3.5 2 5.4 6@ 66V 2.45 4.4 6 3.2 @ 66V 2.7 4.8 69 V 4 x 5 URC 2 27 6@ 66V 2.9 5.2 ka 25 53 275@ 66V 3.2 5.8 @ 69 V 32 98 5@ 66V 3.9 7 4 () 3 7@ 66V 6.7 5 () 28 5@ 66V 6.3.6 7 IN < Ip < 3 IN Ip 3 IN 69 V 4 x 5 URD 4 (2) 3 85@66V 7@66V 6.7 ka 5 (2) 28 85@66V 5@66V 6.3.6 @ 69 V 25 22 25@ 66V 5.2 32 49 275@ 66V 5.7 69 V 22 x 58 URD 4 88 48@ 66V 6.8 3 5 55 8@ 66V 7.8 4.9 ka 63 35 85@ 66V 8.4 6 @ 69 V 8 73 38@ 66V 9.4 7,8 56 8@ 66V 9 6 V 22X58 URD 25 29 4@6V 4 22 ka 3 336 77@6V 5 25 @ 6 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. SCAC82
4x5 & 22x58 URC / URD - 6 to 69 VAC All the fuses presented on this page are (except 6 A)* 4x5 - Without blown fuse indication Current Rating Designation Ref. Number Catalog Number 6 A 6.9 CP URC 4.5/6* K8475 8 A 6.9 CP URC 4.5/8 S9392 A 6.9 CP URC 4.5/ T9393 2 A 6.9 CP URC 4.5/2 V9394 6 A 6.9 CP URC 4.5/6 W9395 2 A 6.9 CP URC 4.5/2 X9396 25 A 6.9 CP URC 4.5/25 Y9397 32 A 6.9 CP URC 4.5/32 Z9398 4 A 6.9 CP URC 4.5/4 A9399 5 A 6.9 CP URC 4.5/5 B939 4x5 - With trip-indicator Current Rating Designation Ref. Number Catalog Number 6 A 6.92 CP URC 4.5/6* G858 8 A 6.92 CP URC 4.5/8 C939 A 6.92 CP URC 4.5/ D9392 2 A 6.92 CP URC 4.5/2 E9393 6 A 6.92 CP URC 4.5/6 F9394 2 A 6.92 CP URC 4.5/2 G9395 25 A 6.92 CP URC 4.5/25 H9396 32 A 6.92 CP URC 4.5/32 J9397 4 A 6.92 CP URD 4.5/4 T36 5 A 6.92 CP URD 4.5/5 V37 FR4UC69V6 FR4UC69V8 FR4UC69V FR4UC69V2 FR4UC69V6 FR4UC69V2 FR4UC69V25 FR4UC69V32 FR4UC69V4 FR4UC69V5 FR4UC69V6T FR4UC69V8T FR4UC69VT FR4UC69V2T FR4UC69V6T FR4UC69V2T FR4UC69V25T FR4UC69V32T FR4UD69V4T FR4UD69V5T Ø 4,3 Ø 4,3 5 Weight : 8g Packaging : pieces 5 Weight : 8g Packaging : pieces 7 mini Ø 5 22x58 - Without blown fuse indication Current Rating Designation Ref. Number Catalog Number 25 A 6.9 CP URD 22x58/25 B93956 32 A 6.9 CP URD 22x58/32 Z94828 4 A 6.9 CP URD 22x58/4 S94822 5 A 6.9 CP URD 22x58/5 W94779 63 A 6.9 CP URD 22x58/63 T94823 8 A 6.9 CP URD 22x58/8 A94829 A 6.9 CP URD 22x58/ Y94827 FR22UD69V25 FR22UD69V32 FR22UD69V4 FR22UD69V5 FR22UD69V63 FR22UD69V8 FR22UD69V Weight: 57 g Packaging: pieces 22x58 - With trip-indicator Current Rating Designation Ref. Number Catalog Number 25 A 6,92 CP URD 22x58/ 25 H938 32 A 6,92 CP URD 22x58/ 32 C93957 4 A 6,92 CP URD 22x58/ 4 J9382 5 A 6,92 CP URD 22x58/ 5 D93958 63 A 6,92 CP URD 22x58/ 63 K9383 8 A 6,92 CP URD 22x58/ 8 E93959 A 6,92 CP URD 22x58/ F9396 25 A 62 CP URD 22x58/25 A2278 35 A 62 CP URD 22x58/35 B2279 Fuseholder Solution: See Gears and Fuse gears section FR22UD69V25T FR22UD69V32T FR22UD69V4T FR22UD69V5T FR22UD69V63T FR22UD69V8T FR22UD69VT FR22UD6V25T FR22UD6V35T Ø 22,2 58 Weight: 57 g Packaging: pieces 7 mini Ø 5 SCAC83
4x5 & 22x58 URC / URD - 6 to 69 VAC 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. Tolerance for mean pre-arcing current ± % Corrective factor - Peak arc voltage Corrective factor 4x5 URC - URD Peak arc voltage 4x5 URC - URD The mean curves show the variation of the total clearing I 2 t t and the total clearing duration t t as a function of operating voltage U. K,2,8,6,4,2 22x58 URD This curve shows the peak value Um of the arc voltage which appears across the fuse-link as a function of the operating voltage U @ cos j =.5. 22x58 URD Um(V) 2 6 2 8 4 2 3 4 5 6 7 2 3 4 5 6 7 U(V) SCAC84
4x5 & 22x58 URC / URD - 6 to 69 VAC DC Application data 4x5 URC - URD 4x5 URC - URD L R (ms) 8 7 6 5 4 3 2 Um(V) 9 8 7 6 5 2 3 4 5 6 U(V) 2 3 4 5 6 U(V) Minimum breaking current: see time-current characteristics 22x58 URD 22x58 URD L R (ms) 8 7 6 5 4 3 2 Um(V) 9 8 7 6 2 3 4 5 6 7 U(V) 2 3 4 5 6 U(V) 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 operating voltage U. SCAC85
4x5 URGB & 22x58 URGA - 6 V to 69 VAC EXTREMELY HIGH BREAKING CAPACITY FUSES: PROTECTION OF POWER SEMICONDUCTORS AS PER IEC STANDARD 6269. AND 4 6 V - 69 V AC VOLTAGE RATING ar CLASS AS PER VDE 636-23 AND IEC 6269.4 WITH AND WITHOUT TRIP-INDICATOR FOR SIZES 4 x 5 AND 22 x 58 Main Characteristics Voltage rating U N ( VAC ) Size Class Current rating I N (A) Pre-arcing I 2 t @ ms I 2 tp (A 2 s) Total clearing I 2 t @ A 2 s 66 V Ip 3 I N Ip > 3 I N Watts loss,8 I N I N Tested Breaking capacity 69 V 6* - 69 V 4 x 5 22 x 58 URGB URGA 8 2 6 2 25 32 4 5 25 32 4 5 63 8 3.3 6. 9.3 5.6 3. 53.5 24 48 45 84 5 27 595 65 2 7 37 3 75 6 95 75 75 45 3 25 55 46 5 94 255 27 2 4 7 27 277 55.45.85 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 22 x 58 URGA * 25 9* 4.2 25.6 2 ka @ 69 V 2 ka @ 69 V 2 ka @6 V *Operating 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 operating voltage for built-in trip-indicator: 2 V SCAC86
4x5 URGB & 22x58 URGA - 6 V to 69 VAC References 4x5 - Without blown fuse trip-indicator Current Rating Designation Ref. Number 8 A 6.9 CP URGB 4.5/8 T7833 A 6.9 CP URGB 4.5/ V7834 2 A 6.9 CP URGB 4.5/2 W7835 6 A 6.9 CP URGB 4.5/6 X7836 2 A 6.9 CP URGB 4.5/2 Y7837 25 A 6.9 CP URGB 4.5/25 Z7838 32 A 6.9 CP URGB 4.5/32 A7839 4 A 6.9 CP URGB 4.5/4 B784 5 A 6.9 CP URGB 4.5/5 C784 Catalog Number FR4UB69V8 FR4UB69V FR4UB69V2 FR4UB69V6 FR4UB69V2 FR4UB69V25 FR4UB69V32 FR4UB69V4 FR4UB69V5 Weight: 8 g Packaging: pieces 4x5 - With trip-indicator Current Rating Designation Ref. Number 8 A 6.92 CP URGB 4.5/8 D7842 A 6.92 CP URGB 4.5/ E7843 2 A 6.92 CP URGB 4.5/2 F7844 6 A 6.92 CP URGB 4.5/6 G7845 2 A 6.92 CP URGB 4.5/2 H7846 25 A 6.92 CP URGB 4.5/25 J7847 32 A 6.92 CP URGB 4.5/32 K7848 4 A 6.92 CP URGB 4.5/4 L7849 5 A 6.92 CP URGB 4.5/5 M785 Catalog Number FR4UB69V8T FR4UB69VT FR4UB69V2T FR4UB69V6T FR4UB69V2T FR4UB69V25T FR4UB69V32T FR4UB69V4T FR4UB69V5T Ø 4,3 5 Weight: 8 g Packaging: pieces 7 mini Ø 5 22x58 - Without blown fuse trip-indicator Current Rating Designation Ref. Number 25 A 6.9 CP URGA 22.58/25 C95245 32 A 6.9 CP URGA 22.58/32 D95246 4 A 6.9 CP URGA 22.58/4 E95247 5 A 6.9 CP URGA 22.58/5 F95248 63 A 6.9 CP URGA 22.58/63 G95249 8 A 6.9 CP URGA 22.58/8 H9525 A 6.9 CP URGA 22.58/ N785 22x58 - With trip-indicator Catalog Number FR22UA69V25 FR22UA69V32 FR22UA69V4 FR22UA69V5 FR22UA69V63 FR22UA69V8 FR22UA69V Weight: 57 g Packaging: pieces Current Rating Designation Ref. Number 25 A 6.92 CP URGA 22.58/25 T9526 32 A 6.92 CP URGA 22.58/32 V9526 4 A 6.92 CP URGA 22.58/4 W95262 5 A 6.92 CP URGA 22.58/5 X95263 63 A 6.92 CP URGA 22.58/63 Y95264 8 A 6.92 CP URGA 22.58/8 Z95265 A 62 CP URGA 22.58/ N98222 See Gears and Fuse gears section Catalog Number FR22UA69V25T FR22UA69V32T FR22UA69V4T FR22UA69V5T FR22UA69V63T FR22UA69V8T FR22UA6VT Ø 22,2 58 Weight: 57 g Packaging: pieces 7 mini Ø 5 SCAC87
4x5 URGB & 22x58 URGA - 6 V to 69 VAC Electrical Characteristics 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%. SCAC88
4x5 URGB & 22x58 URGA - 6 V to 69 VAC Corrective factor - Peak arc voltage Corrective factor Peak arc voltage URGB URGB K,2 Um(V) 2,8,6,4,2 2 4 6 U(V) 2 4 6 8 U(V) URGA URGA K,2 Um(V) 2,8,6,4,2 Ip 5 In Ip > 5 In 2 4 6 U(V) 2 4 6 8 U(V) 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 operating voltage U. This curve shows the peak value Um of the arc voltage which appears across the fuse link as a function of operating voltage U @ cos ϕ =.5. SCAC89