Special Application Fuses Intrinsically Safe > Radial Leaded > PICO 305 Series Fuse RoHS PICO 305 Series - 277V Intrinsically Safe Fuse Description The PICO 305 Series Fuse offers a range of encapsulated fuses certified under UL 913 , the standard for intrinsically safe electrical equipment, to operate in hazardous locations. Ideal for use in oil, gas, mine, chemical, and pharmaceutical process industries, the PICO 305 Series fuse was designed to limit the energy and temperature generated during its operation. The fuse design and its encapsulant are suitable for use in an intrinsically safe apparatus and associated apparatus for peak voltage not exceeding 375V. Features High Interrupting Rating of Designed for operation 1500A in a range of hazardous Agency Approvals environments Well suited for 277V Agency Agency File Number applications Encapsulated and sealed (1mm minimum) RoHS Compliant DEMKO 13 ATEX 1200U Global hazardous location E358130 certifications IECEx UL 13.0077U Applications Testing, measuring or Process control and Reference Standards processing electronic and automation electrical equipment Sensors Agency Standards Motor controllers Lighting EN 60079-0, EN 60079-11, ATEX EN 60079-26 Communication handsets Flow/gas meters IEC 60079-0, IEC 60079-11, IECEx IEC 60079-26 Electrical Characteristics for Series UL 913, UL 60079-0, UL UL 60079-11 % of Ampere Opening Time Rating CAN/CSA C22.2 No. 157, cUL CAN/CSA C22.2 No. 60079-0, 110% 4 Hours, Minimum CAN/CSA C22.2 No. 60079-11 300% 10 Seconds, Maximum 1000% 0.002 Seconds, Maximum Electrical Specifications by Items Agency Approvals Ampere Nominal Minimum Cold Minimum Cold Nominal Cold Amp Interrupting Rating Melting Resistance at Resistance at Resistance at Code Rating 2 2 (A) I t (A Sec.) -20C (Ohms) -40C (Ohms) 25C (Ohms) 0.050 .050 0.00019 9.202 9.010 12.00 x x x 0.080 .080 0.00035 6.031 5.963 8.19 x x x 0.100 .100 0.00070 2.709 2.668 5.00 x x x 0.160 .160 0.00202 2.297 2.292 3.00 x x x 1500A 277VAC/DC 0.200 .200 0.00288 1.935 1.839 2.68 x x x 0.250 .250 0.060050 1.268 1.105 1.60 x x x 0.500 .500 0.127400 0.392 0.368 0.46 x x x 0.750 .750 0.13448 0.219 0.196 0.27 x x x Notes: 1) The fuse must be mounted so that creepage and clearance distances arent impaired in any way. 2) The fuse is suitable for use in intrinsically safe equipment and associated apparatus for voltage not exceeding 375V peak. 3) Maximum surface temperature rise at 170% rated current: 200mA=80C, 250mA = 84C, 500mA = 56C, and 750mA = 84C. 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/04/15Special Application Fuses Intrinsically Safe > Radial Leaded > PICO 305 Series Fuse 305 Series Product Characteristics Average Time Current Curves Operating Temperature Current Rating Ambient Temperature 100 0.200 A - 40C to +50C 0.250 A - 40C to +46C 10 0.500 A - 40C to +74C 0.750 A - 40C to +46C Notes: 1) Any use of the 305 Series fuse outside of the ambient temperature ranges specified in 1 the table is subject to additional investigation. 2) Specified ambient temperature range is for intrinsic safety certification. Polyamide 6 0.1 Molding Material CTI 175 volts minimum Continuous Operating Temperature: 130C Thermal Shock Withstands 5 cycles of 55C to 125C 0.01 Vibration Per MIL-STD-202 Insulation Greater than 10,000 ohms 0.001 Resistance (After (at twice rated DC voltage) Opening) Soldering Parameters 0.0001 0.01 0.1 1 10 100 1000 CURRENT IN AMPERES Wave Soldering 260C, 10 seconds max. Temperature Rerating Curve Dimensions 15.600.50 9.000.50 +1.00 5.00 - 0.50 12.700.20 0.64 Part Numbering System 0305 .050 M SERIES Notes: AMP CODE 1) Rerating depicted in this curve is in addition to the standard rerating of 25% for Refer to Amp Code column in the continuous operation. Electrical Specifications table. 2) The temperature rerating curve represents the nominal conditions. For questions about temperature rerating curve, please consult Littelfuse technical support for assistance. QUANTITY & PACKAGING CODE M = Bulk pack, 1000 pcs H = Bulk pack, 100 pcs V = Bulk pack, 5 pcs 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/04/15 TIME IN SECONDS .050A .080A .100A .160A .200A .250A .500A .750A