u l www.littelfuse.com 4 - 6 ? 2005 littelfuse ? telecom design guide 229 / 230 series 2ag slo-blo ? fuse the 2ag slo-blo fuses are available in cartridge form or with axial leads (board washable). these fuses provide the same performance characteristics as the 3ag counterpart while occupying one-third the space. the fuses combine conventional overcurrent protection with the ability to withstand high-current, short-duration pulses. they meet demanding telecom requirements and comply with the short circuit requirements of ul 1459. an insulating sleeve option is available. for environmental and physical specifications and soldering parameters, see www.littelfuse.com. the 2ag indicating slo-blo fuse instantly identifies itself upon opening by showing a discoloration of its glass body, eliminating guesswork and time- consuming circuit testing. note: short circuit capabilities for 60 a, 40 a, 7 a, and 2.2 a are 600 v ac. electrical characteristics % of ampere rating opening time min max 110 4 hours ? 135 ? 1 hour 200 3 s 20 s interrupting values current rating amps interrupting values vac 0.25?3.5 10,000 a at 125 4?7 400 a at 125 0.25?1 35 a at 250 1.25?3.5 100 a at 250 #tdg_4_electronicfuse.fm page 6 sunday, july 31, 2005 8:33 am
229 / 230 series 2ag slo-blo? fuse telecom design guide ? ? 2005 littelfuse 4 - 7 www.littelfuse.com electronic fuses notes: ? fuses withstand 50 repetitions of a double exponential impulse wave at listed currents and voltages, except that the 229 1.25 / 230 1.25 fuse withstands 20 repetitions at 2x10 s @ 2500 v. ? to order an indicating 2ag slo-blo fuse, add an ?s? at the end of the part number (for example, 230 001s). ? to order fuses to dscc drawing #87108, change 229 to 290 and 230 to 291. surge ratings cartridge part number axial lead part number i pp 2x10 s @ 2500 v amps i pp 10x160 s @ 1500 v amps i pp 10x560 s @ 800 v amps i pp 10x1000 s @ 1000 v amps 0229.250 0230.250 not rated 23 16.6 12.4 0229.350 0230.350 not rated 34 25.8 19.3 0229.375 0230.375 not rated 40 25.4 19 0229.500 0230.500 not rated 60 37.7 28.2 0229.600 0230.600 not rated 71 47.2 35.3 0229.750 0230.750 not rated 91 65.5 49 0229.800 0230.800 not rated 104 68.9 51.6 0229 001. 0230 001. not rated 130 88.6 66.3 0229 1.25 0230 1.25 500 162 118.1 100 electrical parameters cartridge part number axial lead part number voltage rating current rating amps i 2 t measured at dc rated voltage typical dc cold resistance ohms 0229.250 0230.250 250 0.25 0.216 2.41 0229.350 0230.350 250 0.35 0.49 1.3 0229.375 0230.375 250 0.375 0.58 1.17 0229.500 0230.500 250 0.5 1.16 0.688 0229.600 0230.600 250 0.6 1.75 0.477 0229.750 0230.750 250 0.75 2.95 0.340 0229.800 0230.800 250 0.8 3.45 0.304 0229 001. 0230 001. 250 1 5.64 0.212 0229 1.25 0230 1.25 250 1.25 9.8 0.145 #tdg_4_electronicfuse.fm page 7 sunday, july 31, 2005 8:33 am
www.littelfuse.com 4 - 8 ? 2005 littelfuse ? telecom design guide 229 / 230 series 2ag slo-blo? fuse time current curve 1000 100 10 1 0.1 0.01 0.1 1 10 100 100 0 0.25 a 0.375 a 0.5 a 0.75 a 1 a 1.5 a time in seconds current in amperes #tdg_4_electronicfuse.fm page 8 sunday, july 31, 2005 8:33 am
|
