11
Derating
The three derating curves are valid at 100% simultaneity of the relay outputs.
A distinction is made between contacts 13/14 and 23/24.
Use only one diagram to determine the derating of the safety module.
Example (derating 1):
If contacts 23/24 are loaded with 6 A at T
A
= 50°C, then contacts 13/14 can
only be loaded with a maximum of 2.6 A.
Derating 1
Derating 2
Derating 3
0
1
2
3
4
5
6
10
20
30
40
50
60
T
A
I
23/24
13/14
°C
A
75560018
0
1
2
3
4
5
6
10
20
30
40
50
60
T
A
I
23/24
13/14
°C
A
75560019
0
1
2
3
4
5
6
10
20
30
40
50
60
T
A
I
23/24
13/14
°C
A
75560020
Contact data for the safety relay used
Contact material
0.2-0.4 µm Au
Type of contact
Single contact
Nominal switching power
250 V AC 6 A AC1 1500 VA
Electrical service life
100,000 AC1 (360 switching operations/h), approximately
Inrush current
30 A for 20 ms, maximum
Switching voltage range
5 V DC/V AC to 250 V DC/V AC
Switching current range (guide value)
5 mA to 6 A
11-6
User manual IC220SDL840 -
May 2018
GFK-2734