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GV2, GV3, and GV7 Manual Motor Starters, Controllers, and Protectors
Specifications and Operating Curves
31
6/2010
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Table 36: Thermal-Magnetic Trip Curves for GV7R
Average operating time at 68 ºF (20 ºC) as a function of multiples of the setting current
1. Curve from cold state
2. Curve from hot state
3. 12–14 Ir
In the event of total phase failure, trip occurs after 4 s ± 20%
0.001
0.002
0.1
0.01
0.005
0.05
1
0.5
0.02
0.2
2
5
10
20
50
100
200
500
1000
2000
5000
10,000
102 3 4 7 100
x setting current (lr)
20 30 4055070
1
3
2
1
1.12
Time (s)