Technical data
13.2 Basic units
3SK1 safety relays
210 Manual, 04/2013, A5E02526190021A/RS-AA/01
13.2.2.2 Technical data for 3SK1121 Advanced relay instantaneous basic unit
3SK1121-.AB..
Insulation voltage rated value V 300
Resistance against shock 10g / 11 ms
Number of sensor inputs 1-channel or 2-channel 1
Design of the cascading yes
Type of the safety-related wiring of the inputs single-channel and two-channel
Product feature transverse contact-secure Yes
Safety Integrity Level (SIL)
• according to IEC 61508
SIL3
• for delayed release circuit according to IEC 61508
—
Performance Level (PL)
• according to ISO 13849-1
e
• for delayed release circuit according to ISO 13849-1
—
Category according to ISO 13849-1
4
T1 value for proof test interval or service life according to
IEC 61508
a 20
Safety device type according to IEC 61508-2 Type B
Number of outputs
• as contact-affected switching element
– as NC contact for reporting function instantaneous switching
1
– as NO contact for reporting function instantaneous switching
0
– as NC contact for reporting function delayed switching
0
– as NO contact for reporting function delayed switching
0
– as NC contact safety-related instantaneous switching
0
– as NO contact safety-related instantaneous switching
3
– as NC contact safety-related delayed switching
0
– as NO contact safety-related delayed switching
—
• as contact-less semiconductor switching element
– safety-related
– delayed switching
0
– non-delayed
0
– for reporting function
– delayed switching
—
– non-delayed
0
Stop category according to DIN EN 60204-1
0
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