3

Thermal (T- and TA-Line)

TA35 Rocker 1Pole

www.schurter.com /PG17_20

Circuit Breakers

Typical internal resistance

Rated Current [A]

Internal Resistance [

Ω]

0.05

200.000

0.1

70.000

0.5

2.750

1.0

0.720

1.5

0.340

2.0

0.187

2.5

0.115

2.8

0.089

3.0

0.059

4.0

0.059

5.0

0.044

6.0

0.028

7.0

0.0142

8.0

0.0142

10.0

0.0109

12.0

0.0086

13.0

0.0072

14.0

0.0072

15.0

0.0056

16.0

0.0056

18.0

0.0052

20.0

0.0052

Effect of ambient temperature

The units are calibrated for an ambient temperature of +23°C. To determine the rated cur-

rent for a lower or higher ambient temperature, use a correction factor (typical value) from

the table below:

Ambient temperature [°C]

Correction factor

-30

0.77

-20

0.81

0

0.90

+23

1.00

+40

1.03

+50

1.04

+60

1.06

Example: Rated current = 5 A; Environmental temperature = 50 °C; --> Correction factor =

1.04; Resulting current = 5.2 A --> Fount to next higher rated current: 6 A