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3SK1211-1BB40
Siemens 3SK1211-1BB40 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 3SK1211-1BB40 is a SIRIUS safety relay designed for output expansion in industrial automation systems. This reliable and efficient component features 4 relay enabling circuits with 4 Normally Open (NO) contacts for safety-related functions, as well as a relay signaling circuit with 1 Normally Closed (NC) contact for reporting purposes. Engineered to meet the highest safety standards, the 3SK1211-1BB40 is rated for Safety Integrity Level (SIL) 3 according to IEC 61508 and Performance Level (PL) e according to EN ISO 13849-1. With a maximum operating frequency of 360 cycles per hour, this safety relay is suitable for Class B environments, including domestic applications. Enhance the safety and performance of your automation system with the Siemens 3SK1211-1BB40 safety relay.
| Specification | Description |
|---|---|
| Part Number | 3SK1211-1BB40 |
| Alternative Part Number | 3SK12111BB40 |
| Manufacturer | Siemens |
| Safety Integrity Level (SIL) | SIL3 |
| Performance Level (PL) | e |
| Category | 4 |
| PFHD (High Demand Rate) | 1.7 x 10⁻⁹ 1/h |
| PFDavg (Low Demand Rate) | 1 x 10⁻⁶ 1/y |
| T1 Value (Proof Test Interval) | 20 years |
| Hardware Fault Tolerance | 1 |
| Safety Device Type | Type A |
| Number of NO Contacts | 4 (Safety-related, instantaneous switching) |
| Stop Category | 0 |
| Operating Frequency (max) | 360 1/h |
| Switching Capacity Current (DC-13) | 5 A at 24 V, 0.2 A at 115 V, 0.1 A at 230 V |
| Switching Capacity Current (AC-15) | 5 A at 24 V, 5 A at 115 V, 5 A at 230 V |
| Installation Environment (EMC) | Suitable for Class B environments and domestic environments |
| Overvoltage Category | Installation category III |
| Degree of Pollution | 3 |
| Reference Code (DIN EN 61346-2) | F |
What is the Safety Integrity Level (SIL) of this Siemens safety relay?
The Siemens 3SK1211-1BB40 safety relay has a Safety Integrity Level (SIL) of 3 according to IEC 61508.
What is the Performance Level (PL) of this safety relay?
The Performance Level (PL) of the Siemens 3SK1211-1BB40 safety relay is 'e' according to EN ISO 13849-1.
What is the category of this safety relay according to EN ISO 13849-1?
The Siemens 3SK1211-1BB40 safety relay falls under Category 4 according to EN ISO 13849-1.
What is the maximum operating frequency of this safety relay?
The maximum operating frequency of the Siemens 3SK1211-1BB40 safety relay is 360 cycles per hour.
What is the switching capacity current of the NO contacts of the relay outputs?
For the Siemens 3SK1211-1BB40 safety relay, the switching capacity current of the NO contacts of the relay outputs at DC-13 is 5 A at 24 V, 0.2 A at 115 V, and 0.1 A at 230 V.
Is this safety relay suitable for Class B environments?
Yes, the Siemens 3SK1211-1BB40 safety relay is suitable for Class B environments and can also be used in domestic environments.
What is the hardware fault tolerance of this safety relay?
The hardware fault tolerance of the Siemens 3SK1211-1BB40 safety relay is 1 according to IEC 61508.
What is the T1 value for proof test interval or service life of this safety relay?
The T1 value for proof test interval or service life of the Siemens 3SK1211-1BB40 safety relay is 20 years according to IEC 61508.
- Industrial safety systems integration
- Emergency stop and safety gate monitoring
- Machine guarding and safety fencing
- Conveyor system safety controls
- Robotics and automation safety management
- Process control and safety interlocking
- Safety-related control of machinery and equipment
- Redundant safety circuit implementation
- Expansion of safety relay outputs in safety applications
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
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Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
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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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