hazardous area fuses blade terminal & special purpose fuses 459 www.littelfuse.com barrier network fuse 242 series safe-t-plus fuse 259 series (.512") 13 mm (.394") 10 mm (.025") .635 mm (.315") 8 mm (.197") 5 mm meets barrier network standards (en50020) for hazardous applications. ?high interrupting rating. meets the 1500a minimum. ?available in both axial lead and surface mount. electrical characteristics: % of ampere rating opening time 110% 4 hours, min imum 300% 10 seconds, max imum 1000% 0.002 seconds, max imum agency approvals: recognized under the components program of underwriters laboratories. interrupting ratings: 4000 amperes at 250vac/vdc packaging (500 pcs): for surface mount version add packaging suf- fix ur. for axial leaded version add packaging suffix ua. for axial leaded version, taped add packaging suffix uat1. ordering information: nominal nominal catalog ampere color resistance melting i 2 t number rating coding cold ohms a 2 sec. 0242 .050 .050 red 11.34 0.000103 0242 .080 .080 green 8.19 0.000214 0242 .100 . 100 blue 3.60 0.000977 0242 .160 . 160 violet 3.00 0.00157 0242 .200 . 200 brown 2.68 0.0038 0242 .250 . 250 black 1.6 0.00579 ?designed to allow equipment to meet ?ntrinsically safe certification for applications in gas plants, petrochemical and processing industries where there is a danger of gas explosion from faulty circuits. ?hermetically sealed. electrical characteristics: % of ampere rating opening time 100% 4 hours, min imum 200% 5 seconds, max imum agency approvals: meets cenelec en500014 to 039 and iec 60079-11. interrupting ratings: 50 amperes at 125 vac 300 amperes at 125 vdc ordering information: 3.02 mm (.119") 8.40 mm (.331") 4.00mm 4.60 mm (.181" ) 1.90 mm (.075") 3.02 mm (.119") 8.40 mm (.331") 4.60 mm (.181" ) 2.90mm 3.20mm 9.80mm 1.90 mm (.075") .635 mm (.025") maximum nominal catalog ampere voltage resistance melting i 2 t number rating drop cold ohms a 2 sec. 0259 .062 .062 2.1 8.1 0.00016 0259 .125 .125 1.3 2.4 0.0012 0259 .250 . 250 0.83 0.87 0.0095 0259 .375 . 375 0.81 0.46 0.025 0259 .500 . 500 0.78 0.32 0.07 0259 .750 . 750 0.23 0.19 0.062 0259 001. 1 0.24 0.14 0.01 schedule of limitations. 1) the fuse must be so mounted that creepage and clearance distances meet the requirements of table 2 of en50020 :1977 or table 4 of en50020 :1994 (equivalent to iec 60079-11 4th edition 1999). 2) when used in intrinsically safe apparatus it will be necessary to determine a surface temperature classification for the fuse. rohs rohs 12 blade terminal and special purpose fuses
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