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
1 month ago
3SK1111-1AW20
Siemens 3SK1111-1AW20 available at EU Automation. Get in touch today for a quick price.
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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.
The Siemens SIRIUS 3SK Series Safety Relay, part number 3SK1111-1AW20, is a fundamental component for various industrial safety applications. Designed to meet stringent safety requirements, this relay is engineered to facilitate the safe and reliable operation of machinery and plant equipment. With a supply voltage range of 110 to 240 V ac, it is versatile for international use and compatible with a wide array of control systems.
This compact device, with dimensions of 22.5 x 100 x 121.6 mm, is suitable for space-constrained environments while offering a robust set of features. It includes three normally open (NO) safety-related contacts and one normally closed (NC) signalling contact, providing flexibility in safety circuit design. The relay is also equipped with a finger-safe enclosure, ensuring protection against electrical shock and enhancing workplace safety.
The 3SK1111-1AW20 is rated for Performance Level e and Safety Integrity Level 3, according to EN ISO 13849-1 and IEC 61508, respectively. These ratings indicate a high level of reliability in safety-related parts of control systems. Additionally, the relay boasts a Safe Failure Fraction (SFF) of 99%, indicating its ability to perform reliably over time.
Installation is straightforward, with screw-type terminals for secure and reliable connections. The relay does not require a plug-in socket, which simplifies wiring and maintenance. It is designed for use in Class A electromagnetic environments and is equipped with measures to prevent undesired radio-frequency interference in residential areas.
The Siemens SIRIUS 3SK Series Safety Relay is an essential component for those seeking to maintain high safety standards in industrial settings while ensuring compliance with international safety regulations. Its reliable performance and ease of integration make it a valuable addition to any safety system.
This compact device, with dimensions of 22.5 x 100 x 121.6 mm, is suitable for space-constrained environments while offering a robust set of features. It includes three normally open (NO) safety-related contacts and one normally closed (NC) signalling contact, providing flexibility in safety circuit design. The relay is also equipped with a finger-safe enclosure, ensuring protection against electrical shock and enhancing workplace safety.
The 3SK1111-1AW20 is rated for Performance Level e and Safety Integrity Level 3, according to EN ISO 13849-1 and IEC 61508, respectively. These ratings indicate a high level of reliability in safety-related parts of control systems. Additionally, the relay boasts a Safe Failure Fraction (SFF) of 99%, indicating its ability to perform reliably over time.
Installation is straightforward, with screw-type terminals for secure and reliable connections. The relay does not require a plug-in socket, which simplifies wiring and maintenance. It is designed for use in Class A electromagnetic environments and is equipped with measures to prevent undesired radio-frequency interference in residential areas.
The Siemens SIRIUS 3SK Series Safety Relay is an essential component for those seeking to maintain high safety standards in industrial settings while ensuring compliance with international safety regulations. Its reliable performance and ease of integration make it a valuable addition to any safety system.
| Specification | Description |
|---|---|
| Part Number | 3SK1111-1AW20 |
| Alternative Part Number | 3SK11111AW20 |
| Manufacturer | Siemens |
| Product Series | SIRIUS 3SK |
| Product Type | Safety Relay |
| Supply Voltage | 110 to 240 V ac |
| Number of Channels | 1 Channel |
| Dimensions | 22.5 x 100 x 121.6 mm |
| Protection Class | IP20 |
| Insulation Voltage | Rated value 300 V |
| Ambient Operating Temperature | -25 to +60 °C |
| Storage Temperature | -40 to +80 °C |
| Air Pressure | 90 to 106 kPa |
| Relative Humidity | 10 to 95 % |
| Installation Altitude | Up to 2000 m above sea level |
| Vibration Resistance | 5 to 500 Hz: 0.75 mm |
| Shock Resistance | 10g / 11 ms |
| Surge Voltage Resistance | Rated value 4000 V |
| EMC | Emitted interference IEC 60947-5-1, Class A |
| Safety Integrity Level (SIL) | SIL3 according to IEC 61508 |
| Performance Level (PL) | PL e according to EN ISO 13849-1 |
| Category according to EN ISO 13849-1 | 4 |
| Safe Failure Fraction (SFF) | 99 % |
| PFHD | 0.0000000015 1/h |
| PFDavg | 0.000001 |
| T1 Value for Proof Test Interval | 20 years |
| Hardware Fault Tolerance | According to IEC 61508: 1 |
| Safety Device Type | Type A according to IEC 61508-2 |
| Number of Safety-related Contacts | 3 NO contacts for safety-related instantaneous actions |
| Number of Signalling Contacts | 1 NC contact for signalling function |
| Stop Category | 0 according to DIN EN 60204-1 |
What is the voltage range for this safety relay?
The safety relay operates within a voltage range of 110 to 240 V AC.
Can this safety relay be used for autonomous safety applications?
Yes, the design of the product is intended for autonomous safety applications.
What is the protection class of the enclosure for this relay?
The enclosure for this relay has a protection class of IP20.
Is the relay finger-safe to protect against electrical shock?
Yes, it is designed to be finger-safe to provide protection against electrical shock.
What are the ambient temperature limits for operating this relay?
The relay can operate within an ambient temperature range of -25 to +60 degrees Celsius.
What is the maximum installation altitude for this relay?
The maximum installation altitude for the relay is 2,000 meters above sea level.
Does this relay have a vibration resistance specification?
Yes, the relay has a vibration resistance according to IEC 60068-2-6, which is 5 to 500 Hz at 0.75 mm.
What is the surge voltage resistance of this safety relay?
The surge voltage resistance rated value for this relay is 4,000 V.
What safety integrity level does this relay meet?
This safety relay meets Safety Integrity Level (SIL) 3 according to IEC 61508.
What performance level does the relay conform to?
The relay conforms to Performance Level (PL) e according to EN ISO 13849-1.
How many safety-related instantaneous contacts does the relay have?
The relay has 3 safety-related instantaneous contacts.
Can this relay be used in residential environments?
This product is suitable for Class A environments and may cause radio-frequency interference in residential environments, where appropriate measures should be taken.
- Monitoring and controlling safety functions in industrial automation systems
- Integration into emergency stop circuits
- Safeguarding of light curtains and safety gates
- Implementation in two-hand control stations
- Use in safety circuits for press and punching machines
- Monitoring floating signals from safety sensors
- Providing safety relay functions for single-channel and dual-channel wiring
- Use in applications requiring Safety Integrity Level (SIL) 3
- Implementation in systems demanding Performance Level (PL) e according to EN ISO 13849-1
- Utilisation in applications with up to Category 4 safety level requirements
- Overseeing safety functions in packaging and assembly lines
- Control of safety functions in automated storage and retrieval systems
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.
3 months ago
Jerry Schrink
Tom Higgins provided amazing service
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!
3 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
3 months ago
Gary
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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