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Varistor Products

CA Varistor Series

High Energy Industrial Disc

Pulse Rating Curves

FIGURE 7. SURGE CURRENT RATING CURVES FOR

V131CA32 - V321CA32

FIGURE 8. SURGE CURRENT RATING CURVES FOR

V421CA32 - V751CA32

FIGURE 9.

SURGE CURRENT RATING CURVES FOR

V131CA40 - V751CA40

FIGURE 10. SURGE CURRENT RATING CURVES FOR

V251CA60 - V321CA60

FIGURE 11. SURGE CURRENT RATING CURVES FOR

V421CA60 - V282CA60

50,000

20,000

10,000

5,000

2,000

1,000

500

200

100

50

20

10

IMPULSE DURATION ( µs)

20

100

1,000

10,000

DISC SIZE 32mm

V131CA32 - V321CA32

1

2

10

INDEFINITE

1

2

10

INDEFINITE

50,000

20,000

10,000

5,000

2,000

1,000

500

200

100

50

20

10

IMPULSE DURATION ( µs)

20

100

1,000

10,000

DISC SIZE 32mm

V421CA32 - V751CA32

DISC SIZE 40mm

V131CA40 - V751CA40

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 ( µs)

10

2

1

INDEFINITE

50,000

20,000

10,000

5,000

2,000

1,000

500

200

100

50

20

10

IMPULSE DURATION ( µs)

1,000

10,000

10

INDEFINITE

20

100

2

DISC SIZE 60mm

V251CA60 - V321CA60

1

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 ( µs)

10

2

1

DISC SIZE 60mm

V421CA60 - V282CA60

INDEFINITE

NOTE: If pulse ratings are exceeded, a shift of VN(DC) (at specified current) of more than ±10% could result. This type of shift, which normally results in a decrease of VN(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.