Siemens SIMATIC S7-400 Reference Manual page 161

4.21 Relay output module SM 422; DO 16 x UC 30/230 V/Rel. 5 A (6ES7422-1HH00-0AA0)
● For an inductive load in accordance with IEC 947-5-1DC 13 / AC 15
Size of motor starter
Lamp load
Contact wiring (internal)
Connection of 2 outputs in parallel
● For redundant load control
● For increasing the power
Control of a digital input
Switching frequency
● Mechanical
● With resistive load
● With inductive load in accordance with IEC 947-5-1,
● With lamp load
Note
Use a suppressor circuit in environments with high humidity and where sparks might occur at
the relay contacts. This will increase the service life of the relay contacts.
To install the suppressor circuit, connect an RC element or a varistor in parallel with the relay
contacts or load. The dimensions depend on the size of the load.
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
DC 13/AC 15
Voltage Current
30 V DC 5.0 A
60 V DC 1.2 A
125 V DC 0.2 A
230 V AC 5.0 A
Voltage Current
30 V DC 5.0 A
(τ=7 ms max.)
230 V AC 5.0 A
(pf=0.4)
Maximum 5 pursuant to NEMA
Maximum 60 W
None
Possible (only outputs with same load volt‐
age)
Not possible
Possible
Maximum 20 Hz
Maximum 10 Hz
Maximum 1 Hz
Maximum 1 Hz
Digital modules
Number of op‐
erating cycles
(typ.)
0.18 million
0.1 million
0.1 million
0.18 million
Number of op‐
erating cycles
(typ.)
0.1 million
0.1 million
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