Relay electrical service life
The typical performance data supplied by relay vendors 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.
A.2
CPU modules
For a more complete list of modules available for S7-1200, refer to the S7-1200 System
Manual or to the customer support web site
request).
Table A- 8
General specifications
General specifications
Dimensions (W x H x D)
Weight
AC/DC/Relay
DC/DC/Relay
DC/DC/DC
Power
AC/DC/Relay
dissipation
DC/DC/Relay
DC/DC/DC
Current available (5 VDC) for SM and CM
bus
Current available (24 VDC) sensor power
Digital input current consumption (24VDC)
Easy Book
Manual, 11/2011, A5E02486774-04
①
②
③
④
(http://www.siemens.com/automation/support-
CPU 1211C
90 x 100 x 75 (mm)
420 grams
380 grams
370 grams
10 W
8 W
8 W
750 mA max.
300 mA max.
4 mA/input used
Service life (x 10
operations)
3
250 VAC resistive load
30 VDC resistive load
250 VAC inductive load (p.f=0.4)
30 VDC inductive load (L/R=7ms)
Rated Operating Current (A)
CPU 1212C
90 x 100 x 75 (mm)
425 grams
385 grams
370 grams
11 W
9 W
9 W
1000 mA max.
300 mA max.
4 mA/input used
Technical specifications
A.2 CPU modules
CPU 1214C
110 x 100 x 75 (mm)
475 grams
435 grams
415 grams
14 W
12 W
12 W
1600 mA max.
400 mA max.
4 mA/input used
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