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Siemens 3SK1121-1CB41
Siemens 3SK1121-1CB41 safety relay, time delay, 24VDC.
This Siemens 3SK1121-1CB41 is supplied brand new by PartLogic for machine guarding, safety circuits, operator protection, production equipment and industrial compliance applications. It forms part of our Industrial automation > Safety > Safety relays range and is referenced internally as PartLogic SKU PL26805410724.
Before ordering, please confirm the manufacturer part number, product specifications and compatibility with your existing equipment. If you are replacing a failed, obsolete or hard-to-find part, contact PartLogic and we can help check suitability or source related components.
Brand New - 12 Months Warranty
$580.77
(inc. GST)
In Stock
| product brand name | SIRIUS |
| product category | Safety relays |
| product designation | safety relays |
| design of the product | Relay enabling circuits |
| product type designation | 3SK1 |
| product line | Advanced basic unit |
| product function parameterizable | sensor floating / sensor non-floating, monitored start-up / automatic start, 1-channel / 2-channel sensor connection, cross-circuit detection, startup testing, antivalent sensors, 2-hand switches, time delay |
| automatic start | Yes |
| light barrier monitoring | Yes |
| protective door monitoring | Yes |
| magnetically operated switch monitoring NC-NO | Yes |
| magnetically operated switch monitoring NC-NC | Yes |
| laser scanner monitoring | Yes |
| light array monitoring | Yes |
| EMERGENCY OFF function | Yes |
| monitored start-up | Yes |
| pressure-sensitive mat monitoring | No |
| product feature cross-circuit-proof | Yes |
| suitability for interaction press control | Yes |
| suitability for operation device connector 3ZY12 | Yes |
| monitoring of floating sensors | Yes |
| monitoring of non-floating sensors | Yes |
| position switch monitoring | Yes |
| EMERGENCY-OFF circuit monitoring | Yes |
| opto-electronic protection device monitoring | Yes |
| magnetically operated switch monitoring | Yes |
| safety switch | Yes |
| safety-related circuits | Yes |
| certificate of suitability UL approval | Yes |
| power loss [W] maximum | 2.5 W |
| insulation voltage rated value | 300 V |
| degree of pollution | 3 |
| overvoltage category | 3 |
| surge voltage resistance rated value | 4 000 V |
| protection class IP of the enclosure | IP20 |
| shock resistance | 10g / 11 ms |
| vibration resistance according to IEC 60068-2-6 | 5 ... 500 Hz: 0.75 mm |
| operating frequency maximum | 360 1/h |
| reference code according to IEC 81346-2 | F |
| Substance Prohibitance (Date) | 11/05/2012 |
| SVHC substance name | Lead - 7439-92-1 Lead monoxide (lead oxide) - 1317-36-8 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol - 79-94-7 Lead titanium zirconium oxide - 12626-81-2 6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol - 119-47-1 4,4'-isopropylidenediphenol (Bisphenol A, BPA) - 80-05-7 |
| Net Weight | 0.272 kg |
| installation altitude at height above sea level maximum | 4 000 m |
| note | Derating, see Product Notification 109792701 |
| during operation | -25 ... +60 °C |
| during storage | -40 ... +80 °C |
| relative humidity during operation | 10 ... 95 % |
| air pressure according to SN 31205 | 900 ... 1 060 hPa |
| installation environment regarding EMC | This product is suitable for Class A environments only. In household environments, this device can cause unwanted radio interference. The user is required to implement appropriate measures in this case. |
| EMC emitted interference | IEC 60947-5-1, Class A |
| product function suitable for safety function | Yes |
| safe state | Safety outputs switched off |
| test wear-related service life necessary | Yes |
| function test interval maximum | 1 a |
| diagnostics test interval by internal test function maximum | 600 s |
| stop category according to IEC 60204-1 | 0 / 1 |
| SIL Claim Limit (subsystem) according to EN 62061 | 3 |
| according to IEC 62061 | SIL 3 |
| at single-channel evaluation according to IEC 62061 | 1 |
| at 2-channel evaluation according to IEC 62061 | 3 |
| PFHD with high demand rate according to IEC 62061 | 0 1/h |
| category according to EN ISO 13849-1 | 4 |
| according to ISO 13849-1 | PL e4 |
| at single-channel evaluation according to ISO 13849-1 | c |
| at 2-channel evaluation according to ISO 13849-1 | e4 |
| for delayed release circuit according to ISO 13849-1 | e |
| overdimensioning according to ISO 13849-2 necessary | No |
| according to IEC 61508 | 31 |
| for delayed release circuit according to IEC 61508 | SIL3 |
| at single-channel evaluation according to IEC 61508 | 10 |
| at 2-channel evaluation according to IEC 61508 | 31 |
| safety device type according to IEC 61508-2 | Type B |
| PFHD with high demand rate according to IEC 61508 | 0 1/h |
| Average probability of failure on demand (PFDavg) with low demand rate acc. to IEC 61508 | 7E-6 1/y |
| PFDavg with low demand rate according to IEC 61508 | 7E-6 |
| Safe failure fraction (SFF) | 99 % |
| of service life according to IEC 61508 | 20 a |
| for proof test interval or service life according to IEC 61508 | 20 a |
| touch protection against electrical shock | finger-safe |
| 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 |
| cascading input/functional switching | Yes |
| feedback input | Yes |
| start input | Yes |
| pulse duration of the sensor input minimum | 75 ms |
| number of sensor inputs 1-channel or 2-channel | 1 |
| — for signaling function instantaneous contact | 0 |
| — safety-related instantaneous contact | 2 |
| — safety-related delayed switching | 2 |
| mechanical service life (operating cycles) typical | 10 000 000 |
| thermal current of the switching element with contacts maximum | 5 A |
| at 24 V | 3 A |
| at 115 V | 0.2 A3 A |
| at 230 V | 0.1 A3 A |
| total current maximum | 12 A |
| operational current at 17 V minimum | 5 mA |
| at DC maximum | 110 ms |
| typical | 6 500 ms30 ms |
| maximum | 6 500 ms110 ms40 ms |
| backslide delay time after opening of the safety circuits typical | 40 ms |
| adjustable OFF-delay time after opening of the safety circuits | 0.05 ... 3 s |
| recovery time after opening of the safety circuits typical | 30 ms |
| recovery time after power failure typical | 6.5 s |
| of the ON pushbutton input minimum | 0.15 s |
| type of voltage of the control supply voltage | DC |
| control supply voltage at DC rated value | 24 V |
| initial value | 0.8 |
| full-scale value | 1.2 |
| mounting position | any |
| fastening method | screw and snap-on mounting |
| height | 100 mm |
| width | 22.5 mm |
| depth | 121.6 mm |
| for grounded parts at the side | 5 mm |
| type of electrical connection | screw terminal |
| with Cu 1.5 mm² and 150 nF/km per sensor circuit maximum | 4 000 m |
| solid | 1x (0.5 ... 2.5 mm²), 2x (1.0 ... 1.5 mm²) |
| finely stranded with core end processing | 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²) |
| for AWG cables solid | 1x (20 ... 14), 2x (18 ... 16) |
| for AWG cables stranded | 1x (20 ... 16), 2x (20 ... 16) |
| type of electrical connection plug-in socket | No |
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