Protistor DCProtistor fuses DC fuses DC Square-body Fuses Sizes 300 - 302 - 2x302 SR Brackets size 300 - 2400V DC SRE from 20 to 180 A Dimensions 129 47.5 63 3 48 58 217 246 268 38 9 Weight: 1150 g 13 Main Characteristics Size Current rating IN( A ) 300 20 25 32 40 50 63 80 100 125 160 180 Breaking Capacity @ 2400 V DC 100 kA L/R = 15 ms @ 2000 V DC 100 kA L/R = 45 ms Max. I2t Watts loss @ 2000 V 0.8 IN IN L/R = 15 ms L/R = 45 ms 2 (W) (W) (A S) (A2S) 18 21 22 26 32 35 38 41 49 50 51 36 42 43 51 62 69 75 80 95 96 98 150 260 310 530 750 1650 3700 8000 14000 34000 57000 260 460 540 920 1300 2900 6500 14000 25000 60000 100000 Designation CC CC CC CC CC CC CC CC CC CC CC 24 24 24 24 24 24 24 24 24 24 24 SRE SRE SRE SRE SRE SRE SRE SRE SRE SRE SRE 300 300 300 300 300 300 300 300 300 300 300 QF QF QF QF QF QF QF QF QF QF QF 0020 0025 0032 0040 0050 0063 0080 0100 0125 0160 0180 Ref. Number Catalog Number X075299 W075298 G079471 H079472 J079473 K079474 L079475 M079476 N079477 P079478 Q079479 D300SE24C20QF D300SE24C25QF D300SE24C32QF D300SE24C40QF D300SE24C50QF D300SE24C63QF D300SE24C80QF D300SE24C100QF D300SE24C125QF D300SE24C160QF D300SE24C180QF Pack: 1 piece Microswitch MC 2R 3E 1-5N BS Ref. Number: J310025 SCDC52 12/04 Protistor DC fuses Protistor DC fuses DC Square-body Fuses Sizes 300 - 302 - 2x302 SR Brackets size 300 - 2400V DC SRE from 20 to 180 A Electrical characteristics DC applications data Peak arc voltage vs. working voltage L/R (ms) Um(V) 100 90 80 70 60 50 40 30 20 10 0 5000 1 4000 2 3000 2000 U (V) 2000 V with breaking capacity of 80 kA a= 130 A2=0.6 B1= 1.25 B2= 0.6 Cf3= 0.8 10 3 2400 2000 1600 125 180 80 40 25 160 50 63 100 32 20 t (s) 10 4 a= 130 A2=0.6 B1= 1.25 B2= 0.6 Cf3= 0.8 10 4 10 3 10 2 10 2 10 10 1 1 10 -1 10 -1 10 -2 10 -2 10 -3 10 -3 10 -4 10 -4 10 3 10 4 I (A) 10 I (A) 10 2 Above: Curves indicate, for each rated current, pre-arcing time vs. R.M.S. pre-arcing current. 12/04 1200 Above: Curves indicate for various time constants L/R the peak arc voltage which may appear across fuse terminals, vs. DC working voltage Time vs. current characteristics 10 2 U (V) 1 : L/R = 45 ms 2 : L/R = 15 ms Max. AC voltage (50/60 Hz): 10 800 Above: Curve indicates maximum permissible value of time constant L/R as a function of DC working voltage t (s) 400 0 0 2600 2400 2200 2000 1800 1600 1400 1200 1000 1000 SCDC53 10 3 10 4