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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3TK2841-1BB40 |
| Alternative Part Number | 3TK28411BB40 |
| Manufacturer | Siemens |
| Product Family | Safety Relay |
| Supply Voltage | 24 V DC |
| Mounting Type | Screw and Snap-on Mounting |
| Dimensions | Width: 22.5 mm, Height: 100 mm, Depth: 88 mm |
| Electrical Connection | Screw-type Terminals |
| Conductor Cross-section | Solid: 1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²), Stranded: 2x (20 ... 14) |
| Product Functions | Light barrier, protective door, automatic start, laser scanner, light grid, emergency stop, and step mat monitoring |
| Safety Integrity Level (SIL) | SIL3 |
| Performance Level (PL) | PL e |
| Category | Category 4 according to EN ISO 13849-1 |
| Hardware Fault Tolerance | 1 |
| Safety Device Type | Type B according to IEC 61508-2 |
| Ambient Operating Temperature | -25 … +60 °C |
| Protection Class IP | Enclosure: IP40, Terminal: IP20 |
| Certificates/Approvals | UL, CSA, TÜV, BG BIA, and others |
The Siemens 3TK2841 Series Safety Relay is a vital component designed to ensure the safe operation of machinery in various industrial settings. This safety relay, with its 24 V dc operating voltage and convenient screw mount design, is engineered to integrate seamlessly into your safety systems. Its compact dimensions of 23 x 120 x 120 mm make it an ideal choice for applications where space is at a premium.
Crafted for reliability, the 3TK2841-1BB40 model boasts electronic enabling circuits (EC) and is capable of handling both single-channel and two-channel safety-related wiring of inputs, providing flexibility in system design. The device is also equipped with two instantaneous safety-related semiconductor outputs, enhancing its functionality in critical safety applications.
This safety relay is suitable for a variety of safety functions, including light barrier monitoring, protective door monitoring, emergency stop functions, and pressure-sensitive mat monitoring, among others. Its design allows for both automatic and monitored start modes, giving you the control needed for different operational requirements.
The 3TK2841-1BB40 is designed to meet stringent safety standards, achieving a Safety Integrity Level (SIL) of 3 and a Performance Level (PL) of e, as per EN ISO 13849-1. It also conforms to Category 4 according to EN 954-1, ensuring a high level of reliability and safety for your machinery.
With certifications from TÜV, UL, and CSA, this safety relay is recognised for its quality and compliance with international safety regulations. Its robust construction and finger-safe terminals provide additional protection against electrical shock, making it a safe choice for operators and maintenance personnel alike.
In summary, the Siemens 3TK2841-1BB40 Safety Relay is a dependable and versatile solution for enhancing the safety of your industrial automation systems, ensuring that your operations run smoothly and safely.
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Frequently Asked Questions
What is the voltage rating for this safety relay?
The safety relay operates at a control supply voltage of 24 V DC.
Can this safety relay be used in any mounting position?
Yes, the safety relay is designed for flexible installation and can be mounted in any position.
What type of connections does this safety relay support?
It supports screw-type terminals for secure and reliable electrical connections.
What is the width of the safety relay?
The safety relay has a width of 22.5 mm, making it suitable for compact installation spaces.
Is this safety relay suitable for emergency stop functions?
Yes, the safety relay is designed for emergency stop functions, ensuring safe and reliable operation in critical situations.
What is the maximum installation altitude for this safety relay?
The safety relay can be installed at a maximum altitude of 2,000 meters above sea level.
What is the ambient temperature range for operating this safety relay?
The safety relay can operate within an ambient temperature range of -25 to +60 degrees Celsius.
Does this safety relay have a protection class rating?
Yes, the housing of the safety relay has a protection class rating of IP40, and the terminal has a rating of IP20.
What is the Safety Integrity Level (SIL) of this safety relay?
This safety relay has a Safety Integrity Level (SIL) of 3, according to IEC 61508.
Can this safety relay be used for monitoring light barriers?
Yes, it is suitable for light barrier monitoring applications.
What is the Performance Level (PL) rating of this safety relay?
The safety relay has a Performance Level (PL) rating of 'e' according to EN ISO 13849-1.
Is this safety relay suitable for use in residential environments?
This product is suitable for Class A environments only and may cause radio-frequency interference in residential environments, which may require the user to take appropriate measures.
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