steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
4 weeks ago
3SK1121-1AB40
Siemens 3SK1121-1AB40 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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2. Dedicated Account Manager
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3. Your quote
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
| Specification | Description |
|---|---|
| Part Number | 3SK1121-1AB40 |
| Alternative Part Number | 3SK11211AB40 |
| Manufacturer | Siemens |
| Category | General Automation |
| Weight (kg) | 0.280 |
| Commodity Code | 85364900 |
| Part Description | The Siemens 3SK1121-1AB40 is a safety relay with a 24V dc screw terminal. |
| Installation Environment | Suitable for Class A environments only. |
| Overvoltage Category | 3 |
| Degree of Pollution | 3 |
| Number of Sensor Inputs | 1-channel or 2-channel |
| Cascading Design | Yes |
| Safety-Related Wiring of Inputs | Single-channel and two-channel |
| Cross-Circuit-Proof | Yes |
| Safety Integrity Level (SIL) | 3 according to IEC 61508 |
| Performance Level (PL) | e according to EN ISO 13849-1 |
| Category | 4 according to EN ISO 13849-1 |
| Safe Failure Fraction (SFF) | 99 years |
| PFHD with High Demand Rate | 0.0000000025 1/h according to EN 62061 |
| PFDavg with Low Demand Rate | 0.000007 according to IEC 61508 |
| T1 Value for Proof Test Interval or Service Life | 20 years according to IEC 61508 |
| Hardware Fault Tolerance | 1 according to IEC 61508 |
| Safety Device Type | Type B according to IEC 61508-2 |
| Number of Outputs as Contact-Affected Switching Element | 1 NC contact for signalling function instantaneous contact, 3 NO contacts for safety-related instantaneous contact |
| Stop Category | 0 according to DIN EN 60204-1 |
| Design of Input | Cascading input/functional switching, feedback input, start input |
| Type of Electrical Connection | Plug-in socket not available |
| Operating Frequency Maximum | 360 1/h |
| Switching Capacity Current | Of the NO contacts of the relay outputs at DC-13 |
What is the purpose of this safety relay?
This safety relay is designed for autonomous safety applications. It is used to ensure the safe operation of machinery by monitoring and controlling various safety functions.
What are the key features of this safety relay?
The safety relay has enabling circuits with 3 normally open (NO) contacts and a relay signalling circuit with 1 normally closed (NC) contact. It also features cross-circuit-proof functionality and is suitable for single-channel and two-channel safety-related wiring of the inputs.
What is the operating temperature range for this safety relay?
The safety relay can operate in temperatures ranging from -25 to +60 degrees Celsius.
What is the power loss for this safety relay?
The maximum power loss for this safety relay is 2 Watts.
What is the Safety Integrity Level (SIL) of this safety relay?
According to IEC 61508, the Safety Integrity Level (SIL) of this safety relay is 3.
What is the Performance Level (PL) of this safety relay?
According to EN ISO 13849-1, the Performance Level (PL) of this safety relay is 'e'.
What is the category of this safety relay according to EN ISO 13849-1?
According to EN ISO 13849-1, this safety relay falls under category 4.
What is the insulation voltage rated value for this safety relay?
The insulation voltage rated value for this safety relay is 300 Volts.
What is the protection class IP of the enclosure for this safety relay?
The protection class IP of the enclosure for this safety relay is IP20.
What is the weight of this safety relay?
The weight of this safety relay is 0.280 kg.
- Used in industrial automation systems for safety applications
- Integrated into machinery to provide safety relay functions
- Utilized in autonomous safety applications to ensure safe operation
- Employed in systems requiring high safety integrity level (SIL3)
- Used in systems requiring a high performance level (PL e)
- Implemented in systems where cross-circuit proofing is required
- Used in systems that require single-channel and two-channel safety-related wiring of inputs
- Integrated into systems that require cascading design for sensor inputs
- Employed in systems that require safety-related instantaneous contact outputs
- Utilized in environments that require Class A EMC compliance
- Used in systems that require a high degree of pollution resistance
- Implemented in systems that require a high overvoltage category resistance
- Employed in systems that require a high surge voltage resistance
- Utilized in systems that require a high vibration and shock resistance
- Used in systems that require a high ambient temperature range during operation and storage.
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
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Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
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Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
3 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
4 months ago
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