495020 LITTELFUSE | Alldatasheet
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Technical content
% of Opening Time Rating Minimum Maximum 1000 100 0.1 0.01 100001000100101 TIME IN SECONDS CURRENT IN AMPERES 30A 20A 40A 50A 60A JCASE® Cartridge Fuse The JCASE is a cartridge style fuse with female terminal design, pro- viding both increased time delay and low voltage drop to protect high current circuits and handle inrush currents. The JCASE was designed and patented by Littelfuse. Typ. Voltage Current Drop at Part Rating Housing Rated Current Number (A) Color (mV) 495020 20 Blue 106 495025 25 White 101 495030 30 Pink 91 495040 40 Green 87 495050 50 Red 88 495060 60 Yellow 87 27.0 18.7 14.1 24.4 12.0 10.0 1.0 6.7 5.5 12.1 JCASE Fuse Series Temperature Rerating Curve Ambient Temperature (°C) Rerating Factor (% Rated Current) -40 100 105 110 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 100 100 hrs — 135 60 s 1800 s 200 4 s 60 s 350 0.2 s 7 s 600 0.04 s 1 s TIME-CURRENT CHARACTERISTICS JCASE CARTRIDGE FUSE TABLE Interrupting Rating: 1000A @ 32 VDC Voltage Rating: 32 VDC Insertion Force: 53N max. (12 lb.) Extraction Force: 9N min. (2 lb.) Ambient Temp: -40˚C to + 125˚C See page 32 for JCASE Shunt