Advertisement
Note: Right-hand vertical segment of curve is located at the maximum symmetrical interrupting current rating of the circuit breaker, as
indicated in Table 3: Typical vacuum interrupter contact life and stroke on page 44.
Permissible operating cycles
100,000
50,000
20,000
10,000
5,000
2,000
1,000
500
200
100
50
20
10
1
2
5
Breaking current (symmetrical value)
Figure 37: Typical vacuum interrupter contact life curves (continued)
Load graph "C" vacuum interrupter type VS-15052
28
41
10
20
31.5
40
50
100
47
Advertisement
