Siemens ET 200S Manual page 355

Switching Capacity and Lifetime of the Contacts
With an external suppression circuit, the contacts will last longer than specified in
the following table:
The normally open and normally closed contacts of the relay vary in their length of
service life.
Table 11-21 Switching Capacity and Lifetime of the Contacts
Resistive Load
For resistive load
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Voltage Current
24 VDC 5.0 A
4.0 A
2.0 A
0.5 A
0.1 A
48 VDC 2.0 A
1.0 A
0.5 A
0.1 A
48 VAC 2.0 A
60 VAC 2.0 A
120 VAC 5.0 A
3.0 A
2.0 A
1.0 A
0.5 A
230 VAC 5.0 A
3.0 A
2.0 A
1.0 A
0.5 A
Digital Electronic Modules
Operating Operating
Cycles (typ.) Cycles (typ.)
Normally Open Normally Closed
Contact Contact
0.1 million 0.15 million
0.2 million 0.175 million
0.45 million 0.3 million
1.4 million 1.1 million
1.5 million 1.5 million
0.15 million 0.11 million
0.3 million 0.2 million
0.6 million 0.6 million
0.8 million 0.6 million
0.45 million 0.35 million
0.45 million 0.35 million
0.1 million 0.1 million
0.2 million 0.2 million
0.4 million 0.3 million
0.8 million 0.6 million
1.5 million 1.0 million
0.1 million 0.1 million
0.2 million 0.2 million
0.4 million 0.3 million
0.8 million 0.6 million
1.5 million 1.0 million
11-79