Datasheet

Thermal Overcurrent Circuit Breaker 1180-...
www.e-t-a.de
18222
1
The time/current characteristic curve depends on the ambient temperature
prevailing. In order to eliminate nuisance tripping, please multiply the circuit
breaker current ratings by the derating factor shown below. See also section
Technical information.
Ambient temperature °F
°C
-4
-20
+14
-10
+32
0
+73,4
+23
+104
+40
122
+50
+140
+60
Derating factor 0.76 0.84 0.92 1 1.08 1.16 1.24
12468102040
Trip time in seconds
… times rated current
0.1 - 5 A
6 - 10 A
10000
1000
100
10
1
0.1
Dimensions
Typical time/current characteristics at +23 °C/+73.4 °F
8.2
2.3°
.717
19,8
18.2
16.6
14.5
5.2
6.4
8.6
8.2
1.9
1.5
48.6 ON
48.8
52.3 OFF
24.4
1.1
3.6
3.1
0.6
.961
.323
.339
.252
.205
.780
.654
.571
.323
.122
.142
.075
.059
1.91 1.92
2.06
.043
.024
slot for fitting labels
(see accessory 1)
Note: When several devices are mounted together, each device should
only carry 80 % of its rating or it must be overrated accordingly.
This is a metric design and millimeter dimensions take precedence (
mm
)
inch
Internal connection diagram
1
2
Shock directions
1
2
4
3
6
5
current rating
1.0
A
label
Y 307 374 01