Protistor DCProtistor fuses DC fuses DC Square-body Fuses Sizes 300 - 302 - 2x302 gR Brackets size 302 - 2000V DC gRC-gRE from 100 to 280 A Dimensions 152 86.5 3 9 228 246 268 74 77 o13 60 28 Weigth: 4400 g Main Characteristics Size Current rating IN( A ) 100 125 160 302 160 200 250 280 Breaking Capacity @ 2000 V DC 30 kA L/R = 30 ms @ 2000 V DC 30 kA L/R = 14 ms @ 1800 V DC 100 kA L/R = 20 ms Watts loss 0.8 IN IN (W) (W) Designation Ref. Number Catalog Number 30 37 47.5 58.5 72 93 CC 20 gRC 302 QF 0100 CC 20 gRC 302 QF 0125 CC 20 gRC 302 QF 0160 N086929 P086930 Q086931 D302GC20C100QF D302GC20C125QF D302GC20C160QF 42 48 57 60 70 80 95 100 CC CC CC CC S075755 T075756 V075757 W075758 D302GE20C160QF D302GE20C200QF D302GE20C250QF D302GE20C280QF 20 20 20 20 gRE gRE gRE gRE 302 302 302 302 QF QF QF QF 0160 0200 0250 0280 Microswitch MC 2R 3E 1-5N BS Reference number: J310025 SCDC48 12/04 Protistor DC fuses Protistor DC fuses DC Square-body Fuses Sizes 300 - 302 - 2x302 gR Brackets size 302 - 2000V DC gRC-gRE from 100 to 280 A Electrical characteristics Peak arc voltage vs. working voltage DC applications data Um(V) L/R (ms) 3 Curve gRC 2000 V 4 Curve gRE 2000 V 100 90 80 70 60 50 40 30 20 10 0 1 3 4000 4 2 Above: Curves indicate maximum permissible value of time constant L/R as a function of DC working voltage Time vs. current characteristics 160 200 250 280 t (s) 160 125 100 gRC a= 130 A2=0.6 B1= 1.25 B2= 0.6 Cf3= 0.8 10 2 10 10 1 1 10 -1 10 -1 10 -2 10 -2 10 -3 10 -3 10 -4 I (A) 10 3 10 4 a= 130 A2=0.6 B1= 1.25 B2= 0.6 Cf3= 0.8 10 3 10 2 10 -4 I (A) 10 2 10 5 10 3 10 4 10% tolerance for mean pre-arcing current Above, left and right: Curves indicate, for each rated current, pre-arcing time vs. R.M.S. pre-arcing current 12/04 gRE 10 4 10 3 102 2000 Above: Curves indicate for various time constants L/R the peak arc voltage which may appear across the fuse terminals, vs. DC working voltage 1700 V with breaking capacity of 80 kA 10 4 U (V) 1 Curve gRC : L/R = 30 ms 2 Curve gRE : L/R = 15 ms Max. AC voltage (50/60 Hz): t (s) 1000 0 U (V) 0 2200 2000 1600 1200 2000 SCDC49 10 5