Siemens SIRIUS 3SK1

Technical data
13.2 Basic units
3SK1 safety relays
222 Manual, 04/2013, A5E02526190021A/RS-AA/01
3SK1122-.AB..
Control supply voltage
• for DC rated value
V
24
– minimum
V —
– maximum
V
—
• at 50 Hz at AC rated value
V
—
– minimum
V —
– maximum
V
—
• at 60 Hz at AC rated value
V
—
– minimum
V —
– maximum
V
—
Operating range factor control supply voltage rated value of the
magnet coil
—
• at 50 Hz for AC
—
—
• at 60 Hz for AC
—
0.8
• for DC
1.2
Active power loss typical W 2
Contact reliability of the auxiliary contacts —
Product function parameterizable Sensor floating / sensor non-floating,
monitored start / autostart, 1-channel
/ 2-channel sensor connection, cross-
circuit detection, startup testing,
antivalent sensors, 2-hand switches
Suitability for use device connector 3ZY12 Yes
Suitability for interaction pressing control No
Suitability for use
• safety cut-out switch
Yes
• monitoring of floating sensors
Yes
• monitoring of non-floating sensors
Yes
• magnetically operated switches monitoring
Yes
• safety-related circuits
Yes