Alarm Fuses UP Fuse Normal blow 4X 2004 19 10X 11Y 12Z PS E Nominal Value PS E B AC250V DC125V 50A UP500 B A-A 320.4 Cat. No. Rated Current UP75 7.5A UP100 10A UP150 15A UP200 20A B-B 250.3 UP250 25A UP300 30A UP400 40A UP500 50A -1 Breaking Capacity Typ. Resistance1 AC 125V 10,000A DC 125V 1,500A AC 250V 2,500A I2t2 Joule Integral2 20m 36A2s 12m 58A2s 8m 110A2s 6m 230A2s 4m 500A2s 3m 640A2s 3m 1200A2s 2m 2300A2s 14 230.6 NTT UL file # E59783 NTT #5028UP250 UP UPK 104 A 1.2 Physical SizeNet Weight 32x25x37mm 26g Color Black Package 5 5PcsBox Range of ambient temperature -2060 Storage temperature -4085 21 30 15 17 Carrying Capacity Clearing Time 110 135 1 200 2 135 within 1 hour 200 within 2 minutes Clearing Characteristics AC 125V 10,000A DC 125V 1,000A AC 250V 2,500A 1 10 at 10% max. rated current 2 2I tI2t1ms Joule Integral is a value of 1ms of I2t-t characteristics. I2t-t I2t-t Characteristics 1 2 3 4 56 7 8 105 UP500 Cat. No. 102 1 UP75 2 UP100 3 UP150 4 UP200 5 UP250 6 UP300 7 UP400 8 UP500 104 I2t (A2s) Joule integral t (s) Clearing time in second 103 20 10 1 UP400 UP300 UP250 UP200 10 3 UP150 UP100 UP 75 10 2 10 10-1 10-2 1 10 102 103 104 1 10-3 10-2 10-1 t (s) Clearing time in second (A) Current in ampere Information in this catalog may be subject to change without notice. Please confirm product information when ordering. 52 http://store.iiic.cc/ 1 1 1-10.7 70 1-2 -20 20 40 60 UP 1.07 1 0.96 0.92 1-3 x 1 1 2 P8 10 2 2 105 Ratio of I2t 1.0 0.9 0.8 0.7 0.6 0.5 0.4 Ambient temperature -20 20 40 60 UP 1.07 1 0.96 0.92 1-3. Derating for multiple fuse use: When mounting multiple fuses, heat generation must be taken into account. Please consult with us in advance. The following formula is used to determine the required rated current value for the fuse. Circuit Steady-State Current Value Rated Current Value Derating Coefficient for 1 Steady-State Current x Required Derating Sum * *1 This is calculated by multiplying all necessary deratings together. 2. Rush Current Fuse Selection Method Use the waveform closest to the actual measured waveform, and determine the joule integral value for rush current (refer to P8, e.g. triangular waveform). In order to select a fuse for the determined rush current, assuming a fuse rush current durability of 100,000 times, ensure that the selected fuse fits the relationship below. I2t of fuse breakage > I2t of rush current / resistance to rush current *2 UP UPK *2 Rush resistance coefficient: Select the 10 5 value from the graph to the left. 0.3 0.2 0.1 10 In order to select an appropriate fuse, make sure that the following items are satisfied. 1. Steady-State Current Fuse Selection Method 1-1. Derating Coefficient for Steady-State Current: 0.7 Fuse use is predicated on usage at currents of 70% or less of their rated current. 1-2. Temperature Derating Coefficient: Multiply the derating for steady-state current by the effect of the ambient temperature. 102 103 104 105 Repeat numbers to rush current Please perform evaluation and confirmation of the selected fuse within actual equipment, including fuse operation under abnormal current application, before use. Fuse selection If the fuse selection process is unclear, please contact us with as much of the information below as can be provided, so that we may assist you in selection. Materials: Operating voltage of circuit, operating current of circuit, presence or absence of multiply mounted fuses, rush current application waveform, abnormal current, etc. Selection guide: Applicable fuse holders Cat. No. Method of mounting/wiring Environment compliant UPH M5 Fitting screw / Back wiring(M5) No plan UPH(Au) UPH(Au): RoHS compliant UP-403A M5 2007 Fitting screw / Surface wiring(M5) RoHS will be applied in 2007 UPH-4X No plan M5 UPH-4X(Au) Fitting screw / Back wiring(M5) UPH-4X(Au): RoHS compliant Information in this catalog may be subject to change without notice. Please confirm product information when ordering. http://store.iiic.cc/ 53