10

Thermal (T- and TA-Line)

TA45 2 pole Rocker

https://www.schurter.com /PG17_18_19

Circuit Breakers

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

-10

0.89

-5

0.91

0

0.92

+23

1.00

+30

1.03

+40

1.08

+55

1.16

Example: With a nominal current of 5A and an ambient temperature of 40°C, a correction

factor of 1.08 results. This results in a nominal current of 5.5 A, which is rounded up to the

next higher nominal current 6 A.

Auxiliary contact (changeover)

Rated Voltage

28 VDC

60 VDC

240 VAC

Rated current

max. 10 A resistive load

max. 2 A resistive load

max. 2 A cos

φ 0.7

Undervoltage release

Max. operating voltage

1.1 Ue

Rated operating voltage Ue

5 V

12 V

24 V

48 V

120 V

240 V

Current consumption (± 10%)

10.5 mA

16.5 mA

17.0 mA

3.2 mA

3.7 mA

3.1 mA

Highest reset level

0.85 Ue

0.85 Ue

0.85 Ue

0.85 Ue

0.85 Ue

0.85 Ue

Lowest trip level

0.20 Ue

0.20 Ue

0.20 Ue

0.20 Ue

0.20 Ue

0.20 Ue

Trip delay

20 ms - 50 ms

20 ms - 50 ms

20 ms - 50 ms

20 ms - 50 ms

20 ms - 50 ms

20 ms - 50 ms

Impulse withstand voltage (1.2 / 50 µs)

≥4 kV

≥4 kV

≥4 kV

≥4 kV

≥4 kV

≥4 kV

Remote trip

Permissible impuls duration of the make contact (no)

Between terminal C and P1

unlimited

Electrical load of the make contact (no)

Current max. 12 mA / power max. 1.1 W