siemens SIRIUS Data sheet
Data sheet |
3SK1111-1AW20 |
SIRIUS safety relay Basic unit Standard series Relay enabling circuits 3 NO contacts plus Relay signaling circuit 1 NC contact Us = 110 - 240 V AC/DC 50/60 Hz screw terminal
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product brand name |
SIRIUS |
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product category |
Safety relays |
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product designation |
safety relays |
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design of the product |
Relay enabling circuits |
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General technical data |
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protection class IP of the enclosure |
IP20 |
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touch protection against electrical shock |
finger-safe |
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insulation voltage rated value |
300 V |
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ambient temperature |
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● during storage |
-40 ... +80 °C |
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● during operation |
-25 ... +60 °C |
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air pressure according to SN 31205 |
90 ... 106 kPa |
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relative humidity during operation |
10 ... 95 % |
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installation altitude at height above sea level maximum |
4 |
000 m; Derating, see Product Notification 109792701 |
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vibration resistance according to IEC 60068-2-6 |
5 |
... 500 Hz: 0.75 mm |
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shock resistance |
10g / 11 ms |
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surge voltage resistance rated value |
4 |
000 V |
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EMC emitted interference |
IEC 60947-5-1, Class A |
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installation environment regarding EMC |
This product is suitable for Class A environments only. In household |
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environments, this device can cause unwanted radio interference. The user is |
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required to implement appropriate measures in this case. |
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overvoltage category |
3 |
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degree of pollution |
3 |
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reference code according to IEC 81346-2 |
F |
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power loss [W] maximum |
2.5 W |
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number of sensor inputs 1-channel or 2-channel |
1 |
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design of the cascading |
none |
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type of the safety-related wiring of the inputs |
single-channel and two-channel |
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product feature cross-circuit-proof |
Yes |
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Safety Integrity Level (SIL) |
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● according to IEC 62061 |
3 |
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● according to IEC 61508 |
3 |
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performance level (PL) |
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● according to ISO 13849-1 |
e |
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category according to EN ISO 13849-1 |
4 |
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Safe failure fraction (SFF) |
99 % |
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PFHD with high demand rate according to EN 62061 |
1.5E-9 1/h |
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PFDavg with low demand rate according to IEC 61508 |
1E-6 |
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T1 value for proof test interval or service life according to |
20 a |
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IEC 61508 |
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hardware fault tolerance according to IEC 61508 |
1 |
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3SK11111AW20 |
10/20/2023 |
Subject to change without notice |
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Page 1/5 |
© Copyright Siemens |
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safety device type according to IEC 61508-2 |
Type A |
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Inputs/ Outputs |
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number of outputs as contact-affected switching element |
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● as NC contact |
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— for signaling function instantaneous contact |
1 |
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● as NO contact |
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— safety-related instantaneous contact |
3 |
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— safety-related delayed switching |
0 |
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stop category according to EN 60204-1 |
0 |
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design of input |
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● cascading input/functional switching |
No |
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● feedback input |
Yes |
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● start input |
Yes |
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type of electrical connection plug-in socket |
No |
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operating frequency maximum |
360 1/h |
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switching capacity current |
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● of the NO contacts of the relay outputs |
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— at DC-13 |
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— at 24 V |
5 A |
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— at 115 V |
0.2 A |
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— at 230 V |
0.1 A |
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— at AC-15 |
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— at 115 V |
5 A |
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— at 230 V |
5 A |
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● of the NC contacts of the relay outputs |
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— at DC-13 |
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— at 24 V |
1 A |
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— at 115 V |
0.2 A |
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— at 230 V |
0.1 A |
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— at AC-15 |
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— at 115 V |
1.5 A |
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— at 230 V |
1.5 A |
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thermal current of the switching element with contacts |
5 A |
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maximum |
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total current maximum |
12 A |
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operational current at 17 V minimum |
5 mA |
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mechanical service life (operating cycles) typical |
10 000 000 |
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design of the fuse link for short-circuit protection of the NO |
gL/gG: 6A or circuit breaker type A: 3A or circuit breaker type B: 2A or circuit |
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contacts of the relay outputs required |
breaker type C: 1A |
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design of the fuse link for short circuit protection of the NC |
Diazed or Neozed fuses, operating class gL/gG: 6 A or MCB type A: 2 A or |
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contacts of the relay outputs required |
MCB type B: 2 A or MCB type C: 1 A |
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wire length |
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● for total of all sensor circuits with Cu 1.5 mm² and 150 |
2 000 m |
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nF/km maximum |
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make time with automatic start |
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● typical |
110 ms |
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● at DC maximum |
130 ms |
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● at AC maximum |
130 ms |
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make time with automatic start after power failure |
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● typical |
110 ms |
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● maximum |
130 ms |
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make time with monitored start |
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● maximum |
15 ms |
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● typical |
15 ms |
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backslide delay time after opening of the safety circuits |
10 ms |
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typical |
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backslide delay time in the event of power failure |
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● typical |
200 ms |
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● maximum |
300 ms |
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recovery time after opening of the safety circuits typical |
10 ms |
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recovery time after power failure typical |
0.32 s |
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pulse duration |
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3SK11111AW20 |
10/20/2023 |
Subject to change without notice |
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Page 2/5 |
© Copyright Siemens |
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