Varistor Metal Oxide Varistor Products Page 199 Varistor Metal-Oxide Varistor Products

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 Metal-Oxide Varistors (MOVs) High Energy Industrial Disc Varistors > CA Series MAX CLAMPING VOLTAGE DISC SIZE 60mm 250 TO 880V M(AC) RATING T A = -55 o C TO 85 o C 6,000 5,000 4,000 3,000 2,000 1,000 900 800 700 600 500 400 300 200 10 -2 10 -1 10 0 10 1 10 2 10 3 10 4 10 5 PEAK AMPERES (A) V881CA60 V751CA60 V661CA60 V571CA60 MAXIMUM PEAK VOLTS (V) V511CA60 V481CA60 V421CA60 V321CA60 V271CA60 V251CA60 Maximum Clamping Voltage for 60mm Parts V112CA60 - V282CA60 30,000 20,000 10,000 9,000 8,000 7,000 6,000 5,000 4,000 3,000 2,000 10 -2 10 -1 10 0 10 1 10 2 10 3 10 4 10 5 PEAK AMPERES (A) MAX PEAK VOLTS (V) V282CA60 V242CA60 V202CA60 V172CA60 V142CA60 V112CA60 MAX CLAMPING VOLTAGE DISC SIZE 60mm 1100 TO 2800V M(AC) RATING T A = -55 o C TO 85 o C V251CA60 - V881CA60 Repetitive Surge Capability for 60mm Parts V251CA60 - V321CA60 50,000 20,000 10,000 5,000 2,000 1,000 500 200 100 50 20 10 IMPULSE DURATION (s) 1,000 10,000 10 2 10 3 INDEFINITE 10 6 20 100 2 DISC SIZE 60mm V251CA60 - V321CA60 1 SURGE CURRENT (A) 10 5 10 4 V421CA60 - V282CA60 100,000 50,000 20,000 10,000 5,000 2,000 1,000 500 200 100 50 20 10 20 100 1,000 10,000 IMPULSE DURATION (s) 10 2 10 3 10 6 2 1 DISC SIZE 60mm V421CA60 - V282CA60 INDEFINITE SURGE CURRENT (A) 10 4 10 5 NOTE: If pulse ratings are exceeded, a shift of V N(DC) (at specified current) of more than +/-10% could result. This type of shift, which normally results in a decrease of V N(DC) , may result in the device not meeting the original published specifications, but does not prevent the device from continuing to function, and to provide ample protection. Figure 3 Figure 4 Figure 5 Figure 6

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