Type GCB Circuit Protectors
Class 9080 / Refer to Catalog 9080CT9601
GCB ThermalMagnetic Circuit Protectors
9080GCB ThermalMagnetic Circuit Protectors ^{[1]}
Inrush Ratio Correction Table
noteFor resistive loads, use inrush correction factor of 1.0.


Inrush Ratio 
1:1 to 1:4 
1:5 
1:6 
1:7 
1:8 
Factor 
1.3 
1.4 
1.5 
1.6 
1.7 
Ambient Temperature Correction Table
Ambient 
70 °F 
100 °F 
120 °F 
140 °F 
160 °F 
180 °F 
200 °F 
(21.1 °C) 
(37.8 °C) 
(48.9 °C) 
(60 °C) 
(71.1 °C) 
(82.2 °C) 
(93.3 °C) 

Factor 
1.0 
1.1 
1.2 
1.3 
1.4 
1.5 
1.6 
Tripping Times in Seconds at 70 °F (21.1 °C)
noteWhen several protectors are channel mounted adjacent to each
other, the “no trip” current will be 80% of rated current
at 70 °F.


Percent Rated 
100% 
200% 
300% 
400% 
500% 
600% 
1000% 
2000% and 
Tripping Time (s) 
no trip 
10–40 
38 
1.5–9 
0.8–6 
0.003–4 
0.003–2 
Max. 0.02 
Selection
To properly select a Class 9080 Type GCB circuit protector, follow these steps:

Determine the inrush correction factor from Inrush Ratio Correction Table.

Determine the temperature correction factor from Ambient Temperature Correction Table.

Determine the sealed current of the load that is being protected.

Multiply the sealed current by the two correction factors and choose the closest circuit protector.
note
Example: Solenoid with sealed current of 0.75 A, an inrush ratio of 1:6, and in an ambient temperature of 85^{o}F: 0.75 x 1.5 x 1.05 = 1.18. Choose the 1.2 A protector.
Tripping Time: Tripping time of the circuit protector is determined from Tripping Times in Seconds. Divide the circuit protector value by the temperature correction factor from Ambient Temperature Correction Table to determine actual rated current referenced in Tripping Times in Seconds.
How to Order
To Order Specify 
Catalog Number 



Class 
Type 
9080 
GH10 