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Siemens
3TK2842-1BB44
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Check similar products or call us on +44 20 4570 3439 for assistance
This part is currently sold out
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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3TK2842-1BB44 |
| Alternative Part Number | 3TK28421BB44 |
| Manufacturer | Siemens |
| Product Type | Safety Relay |
| Supply Voltage | DC 24V |
| Mounting Type | Screw and snap-on mounting |
| Width | 22.5 mm |
| Height | 100 mm |
| Depth | 88 mm |
| Terminal Type | Screw-type terminals |
| Conductor Cross-section | Solid: 1x (0.5 - 4 mm²), 2x (0.5 - 2.5 mm²); Stranded: 1x (0.5 - 2.5 mm²), 2x (0.5 - 1.5 mm²) |
| Ambient Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Protection Class | IP40 for housing, IP20 for terminal |
| Insulation Voltage | 50 V |
| Safety Integrity Level (SIL) | SIL3 |
| Performance Level (PL) | e |
| Category | 4 according to EN 954-1 and ISO 13849-1 |
| Hardware Fault Tolerance | 1 according to IEC 61508 |
| Safety Device Type | Type B according to IEC 61508-2 |
| Probability of Dangerous Failure/Hour | 0.50E-10 |
| T1 Value | 20 years for proof test interval or service life |
| Number of Safety-related Outputs | 1 delayed switching, 1 non-delayed |
| EMC Emitted Interference | Compliant with IEC 60947-5-1, IEC 60000-4-3, 6, 5 |
| Installation Environment | Suitable for Class A environments only |
| Certifications | UL, CSA, TÜV, BG BIA, and more |
| Product Functions | Emergency stop, protective door monitoring, light barrier/grid/scanner monitoring, and more |
The Siemens 3TK2842-1BB44 is a sophisticated safety relay from the SIRIUS product range, designed to ensure the highest standards of safety for emergency stop and protective door monitoring in industrial environments. This relay is engineered with an electronic release circuit and operates on a DC 24V power supply. With a slim profile of 22.5mm and convenient screw terminal connections, it is built for easy installation and space-saving within control cabinets.
The 3TK2842-1BB44 boasts an array of safety features, including light barrier and laser scanner monitoring, step mat monitoring, and emergency stop function, making it versatile for a wide range of safety applications. It supports both single-channel and two-channel wiring for safety-related inputs, enhancing its adaptability to different safety requirements.
This safety relay is capable of cascading and in-service switching, which allows for flexible integration into existing safety systems. It also offers a monitored start-up function, ensuring that safety checks are performed before the system is activated.
With a maximum achievable Safety Integrity Level (SIL) of 3 and Performance Level (PL) of e, according to IEC 61508 and ISO 13849-1 respectively, the 3TK2842-1BB44 is designed to meet stringent safety standards. It also features hardware fault tolerance and is classified as a Type B safety device under IEC 61508-2.
The 3TK2842-1BB44 is a reliable choice for those seeking a high-performance safety relay that complies with international safety regulations and approvals, including UL, CSA, and TÜV certifications. Its robust design ensures it can operate effectively in a wide range of industrial settings, maintaining safety and performance even in demanding conditions.
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Frequently Asked Questions
What is the purpose of this safety relay?
The Siemens 3TK2842-1BB44 is a safety relay designed for use in emergency stop and protective door monitoring applications. It ensures safe and reliable shutdown of machinery in the event of an emergency or unsafe condition.
Can this safety relay be used for light barrier monitoring?
Yes, the Siemens 3TK2842-1BB44 is suitable for light barrier monitoring, ensuring that when a light barrier is interrupted, the relay will trigger a safety response.
What type of power supply is required for this relay?
This relay requires a DC 24V power supply to operate effectively.
What is the maximum ambient operating temperature for this relay?
The maximum ambient operating temperature for the Siemens 3TK2842-1BB44 is 60°C.
Is this relay suitable for use in environments with high levels of electromagnetic interference?
The Siemens 3TK2842-1BB44 is suitable for Class A environments only and may cause radio-frequency interference in residential environments. Appropriate measures should be taken to mitigate this if necessary.
What is the maximum installation altitude for this safety relay?
The maximum installation altitude for the Siemens 3TK2842-1BB44 is 2,000 meters above sea level.
Does this safety relay have a TÜV certificate?
Yes, the Siemens 3TK2842-1BB44 comes with a TÜV certificate, indicating that it has been tested and meets specific safety standards.
What is the width of the safety relay for installation purposes?
The width of the Siemens 3TK2842-1BB44 is 22.5mm, making it suitable for compact installation spaces.
Can this relay be used for monitoring emergency stop circuits?
Yes, the Siemens 3TK2842-1BB44 is designed to monitor emergency stop circuits as part of its safety functions.
What is the SIL rating of this safety relay?
The Siemens 3TK2842-1BB44 has a Safety Integrity Level (SIL) rating of SIL3, which is suitable for high-risk safety applications.
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