Axial Lead and Cartridge Fuses Ceramic Body 3AB Fast-Acting Fuse 314/324 Series U® L ® QPL ® Ceramic body construction permits higher interrupting ratings and voltage ratings. Ideal for applications where high current loads are expected. ELECTRICAL CHARACTERISTICS: % of Ampere Rating 110% 135% Ampere Rating 1/8–30 1/8–30 1/8–12 15 – 30 200% Opening Time 4 hours, Minimum 1 hour, Maximum 15 seconds, Maximum 30 seconds, Maximum AGENCY APPROVALS: Listed by Underwriters Laboratories and Certified by CSA through 15 amperes at 250 VAC/125 VDC. Recognized under the Components Program of Underwriters Laboratories at 20-30A, certified by CSA at 20A, and approved by METI from 10 through 30 amperes. AGENCY FILE NUMBERS: UL E10480, CSA LR 29862. FUSES TO MIL SPEC: See F03A cartridge type in Military Section. 6.985 (.275") 324 000 Series 0.813 (.032") ( 1/ 8 - 15A) 1.016 (.040") (20 - 30A) 6.35 (.25") INTERUPTING RATINGS: 0.125 - 20A 25 - 30A 0.125 - 1A 2 - 3A 4 - 15A 20A 25-30A 314 000 Series 10,000A @ 125 VAC/DC 400A @ 125 VAC/DC 35A @ 250 VAC 100A @ 250VAC 750A @ 250VAC 1,000A @ 250VAC 100A @ 250VAC 32.385 (1.275") 31.75 (1.25") 38.1 (1.50") TYP. Axial Lead Material: Solder coated copper. ORDERING INFORMATION: Nominal Resistance Cold Ohms 6.20 1.95 0.820 0.500 0.250 0.189 0.0700 0.0432 0.0470 0.0300 0.0240 0.0187 0.0153 0.0105 0.00760 0.00505 0.00355 0.00235 0.00182 Nominal Melting I 2 t A2 Sec. 0.00149 0.0140 0.050 0.115 0.466 0.690 11.0 14.6 10.4 26.0 45.0 71.0 105.0 206.0 570.0 292.0 631.0 1450.0 2490.0 Average Time Current Curves 2A 3A 4A 5A 6A 7A 8A 10A 12A 15A 20A 25A 30A Voltage Rating 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 1/4A 3/8A 1/2A 3/4A 1A Ampere Rating 1/8 1/4 3/8 1/2 3/4 1 2 3 4 5 6 7 8 10 12 15 20 25 30 1/8A Axial Lead Catalog Number 324.125 324.250 324.375 324.500 324.750 324 001 324 002 324 003 324 004 324 005 324 006 324 007 324 008 324 010 324 012 324 015 324 020 324 025 324 030 1000 100 TIME IN SECONDS Cartridge Catalog Number 314.125 314.250 314.375 314.500 314.750 314 001 314 002 314 003 314 004 314 005 314 006 314 007 314 008 314 010 314 012 314 015 314 020 314 025 314 030 10 1 0.1 0.01 0.1 292 w w w. l i t t e l f u s e . c o m 1 10 100 CURRENT IN AMPERES 1000