Siemens SIMATIC S7-1200 - Page 1367

Technical specifications
A.2 General technical specifications
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1367
DC Outputs
Short -circuit protection circuitry is not provided for DC outputs on CPUs, signal modules
(SMs) and signal boards (SBs).
Relay electrical service life
The typical performance data estimated from sample tests is shown below. Actual
performance may vary depending upon your specific application. An external protection
circuit that is adapted to the load will enhance the service life of the contacts. N.C. contacts
have a typical service life of about one-third that of the N.O. contact under inductive and
lamp load conditions.
An external protective circuit will increase the service life of the contacts.
Table A- 8 Typical performance data
Data for selecting an actuator
Continuous thermal current
2 A max.
Switching capacity and life of the contacts
For ohmic load Voltage Current Number of operating cycles
(typical)
24 V DC 2.0 A 0.1 million
24 V DC
1.0 A
0.2 million
24 V DC
0.5 A
1.0 million
48 V AC
1.5 A
1.5 million
60 V AC
1.5 A
1.5 million
120 V
AC
2.0 A 1.0 million
120 V
AC
1.0 A 1.5 million
120 V
AC
0.5 A 2.0 million
230 V
AC
2.0 A 1.0 million
230 V
AC
1.0 A 1.5 million
230 V
AC
0.5 A 2.0 million
For inductive load (according to
IEC 947-5-1 DC13/AC15)
Voltage Current Number of operating cycles
(typical)
24 V DC
2.0 A
0.05 million
24 V DC
1.0 A
0.1 million
24 V DC
0.5 A
0.5 million
24 V AC
1.5 A
1.0 million
48 V AC
1.5 A
1.0 million
60 V AC
1.5 A
1.0 million
120 V
AC
2.0 A 0.7 million