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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3SK1111-1AB30 |
| Alternative Part Number | 3SK11111AB30 |
| Manufacturer | Siemens |
| Product Type | Safety Relay |
| Series | 3SK1 |
| Supply Voltage | 24 V ac/dc |
| Number of Channels | 1 Channel |
| Contact Configuration | 1NC/3NO |
| Number of Contacts | 2 Contacts |
| Dimensions | 22.5 x 100 x 121.6 mm |
| Mounting Type | DIN Rail |
| Safety Integrity Level (SIL) | SIL3 |
| Performance Level (PL) | e |
| Category according to EN ISO 13849-1 | 4 |
| Safe Failure Fraction (SFF) | 99 % |
| PFHD | 0.0000000017 1/h |
| PFDavg | 0.000001 1/y |
| Proof Test Interval/Service Life | 20 years |
| Hardware Fault Tolerance | 1 |
| Safety Device Type | Type A |
| Enclosure Protection Class | IP20 |
| Ambient Operating Temperature | -25 ... +60 °C |
| Installation Altitude | Up to 2,000 m above sea level |
| Vibration Resistance | 5 ... 500 Hz: 0.75 mm |
| Shock Resistance | 10g / 11 ms |
| Surge Voltage Resistance | Rated value 4,000 V |
| EMC Emission | IEC 60947-5-1, IEC 61000 |
| Installation Environment regarding EMC | Suitable for Class B environments and domestic environments |
The Siemens 3SK1111-1AB30 is a high-quality safety relay from the SIRIUS 3SK1 series, designed to ensure the safety of machinery and operators in various industrial settings. This compact and reliable component is engineered to facilitate autonomous safety applications, providing a dependable solution for monitoring and controlling safety functions.
With a supply voltage of 24 V AC/DC, this safety relay is versatile and can be integrated into a wide range of control systems. It features a robust design with 1 channel and includes 3 normally open (NO) contacts for safety-related instantaneous contact, plus 1 normally closed (NC) contact for signalling functions, ensuring a secure and immediate response in the event of a safety circuit breach.
The 3SK1111-1AB30 is designed for ease of installation with its screw terminal connections, allowing for quick and secure wiring. Its slim profile, with dimensions of 22.5 x 100 x 121.6 mm, makes it suitable for space-constrained environments, while the ability to mount in any position offers additional flexibility during setup.
This safety relay is suitable for Class B environments and can also be used in domestic settings, adhering to EMC standards. It boasts an insulation voltage rated value of 300 V and is protected against electrical shock with a finger-safe IP20 enclosure. The device is also designed to withstand the rigours of industrial environments, with a vibration resistance according to IEC 60068-2-6 and a shock resistance of 10g / 11 ms.
The Siemens 3SK1111-1AB30 is a critical component for machine safety, ensuring that safety circuits operate effectively and reliably, contributing to the overall safety and efficiency of industrial operations.
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Frequently Asked Questions
What is the voltage rating for this safety relay?
The safety relay operates at a voltage of 24 V AC/DC.
Can this relay be used for autonomous safety applications?
Yes, it is designed 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.
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 insulation voltage rated value for this relay?
The insulation voltage rated value for this relay is 300 V.
Is this relay suitable for use with safety switches?
Yes, it is suitable for use with safety switches.
What is the maximum installation altitude for this relay?
The maximum installation altitude for this relay is 2,000 metres above sea level.
What is the Safety Integrity Level (SIL) rating for this relay?
This relay has a SIL3 rating according to IEC 61508.
What is the Performance Level (PL) of this relay?
The Performance Level of this relay is PL e according to EN ISO 13849-1.
How many safety-related instantaneous contacts does this relay have?
This relay has 3 safety-related instantaneous contacts.
Can this relay be used for monitoring non-floating sensors?
Yes, it can monitor both floating and non-floating sensors.
What is the vibration resistance specification for this relay?
The vibration resistance is specified at 5 to 500 Hz: 0.75 mm according to IEC 60068-2-6.
Does this relay have a finger-safe design?
Yes, it is designed to be finger-safe to protect against electrical shock.
What is the surge voltage resistance rated value for this relay?
The surge voltage resistance rated value is 4,000 V.
Is the relay cross-circuit-proof?
Yes, it features cross-circuit-proof design.
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