Siemens SIRIUS 3SK1

Technical data
13.2 Basic units
3SK1 safety relays
Manual, 04/2013, A5E02526190021A/RS-AA/01
211
3SK1121-.AB..
Design of the input
• cascading-input/functional switching
Yes
• feedback input
Yes
• start input
Yes
Design of the electrical connection jumper socket
No
Operating cycles maximum 1/h 360
Switching capacity current of the semiconductor outputs at DC-13 at
24 V
A —
Switching capacity current of the NO contacts of the relay outputs
• at DC-13
– at 24 V
A 5
– at 115 V
A
0.2
– at 230 V
A
0.1
• at AC-15
– at 115 V
A 4
– at 230 V
A
4
Switching capacity current of the NC contacts of the relay outputs
• at DC-13
– at 24 V
A 1
– at 115 V
A
0.2
– at 230 V
A
0.1
• at AC-15
– at 115 V
A 1.5
– at 230 V
A
1.5
Thermal current of the contact-affected switching element maximum A
5
Total current maximum A 12
Mechanical operating cycles as operating time typical 10 000 000
Max. permissible voltage for safe isolation between electronic
evaluation device and enabling circuit according to EN 60947-1
V —
Design of the fuse link for short-circuit protection of the NO
contacts of the relay outputs required
gL/gG: 6A or circuit breaker type A:
3A or circuit breaker type B: 2A or
circuit breaker type C: 1A
Cable length between sensor and electronic evaluation device with
Cu 1.5 mm² and 150 nF/km maximum
m 1 000