340 LITTELFUSE
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Technical content
476 www.littelfuse.com Fuseholders For 3AG Fuses Watertight Panel Mount Type APPROVALS:Recognized under the Components Program of Underwriters Laboratories. SPECIFICATIONS: Electrical: Rated at 20 amperes for any voltage up to 250 volts. Dielectric Strength: 1500 volts minimum. Mounting: Withstands 15 lb.-in. mounting torque; maximum panel thickness is .250". Molded Parts: Black thermoset (UL 94V0). Knob: Screw type. Seal: O-ring provides a watertight seal on the front side of the panel per MIL-PRF-19207. Terminals: Copper & copper alloy. Tin plated. Solder type. Ambient Temperature:–40°C to +85°C. Hardware: O-rings (2) and hex nut, unassembled. FUSEHOLDERS TO MIL SPEC: See Military Section. ORDERING INFORMATION: Catalog Number: 342 006 * Please refer to Fuseology section for information on proper fuseholder de-rating. RF Shielded/Watertight Panel Mount Type Radio frequency shielded fuseholders eliminate possible transmission or reception of RF signals through the hole in the chassis in which the fuse- holder is mounted. These fuseholders comply with the watertight con- struction requirement of MIL-PRF-19207 and the Shock-Safe require- ments of IEC 60065 and 60127-6. A rubber O-ring and conductive gas- ket maintain RF shielding and watertight construction. SPECIFICATIONS: The basic fuseholder used is the 345 603 Shock-Safe holder. ORDERING INFORMATION: Catalog Brass Shielding Number Cap Finish 340 312 Nickel plated 340 313 Dull Black * Please refer to Fuseology section for information on proper fuseholder de-rating. 340 300 Series ® QPL QPL 2.35" MAX. .88" DIA. .17" MAX. CAP O-RING R.F .I. GASKET KEEP CHAIN MAX. .460" .465" .475" .480" .500" .505" MOUNTING HOLES .625" .635" .81" .94" DIA. .12" DIA. HOLES 1.3 " .81 " .570" .575" MOUNTING HOLE