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Siemens
3TK2828-1BB41
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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 | 3TK2828-1BB41 |
| Alternative Part Number | 3TK28281BB41 |
| Manufacturer | Siemens |
| Category | General Automation |
| Type | Safety Relay |
| Supply Voltage | 24V dc |
| Terminal Type | Screw Terminal |
| Overall Width | 45.0 mm |
| Relay Outputs | 2 NO Instantaneous, 2 NO Delayed |
| Safety Contacts | 1 NC |
| Start Mode | Autostart |
| Maximum Achievable SIL | 3/2 |
| Performance Level (PL) | e/d |
| Operating Temperature Range | -25 … +60 °C |
| Storage Temperature Range | -40 … +80 °C |
| Installation Altitude | Up to 2000 m above sea level |
| Vibration Resistance | 5 ... 500 Hz: 0.075 mm |
| Shock Resistance | 8g / 10 ms |
| Insulation Voltage | Rated at 300 V |
| Air Pressure | 90 … 106 kPa according to SN 31205 |
| Relative Humidity | 10 … 95 % during operation |
| Protection Class | IP20 for enclosure and terminal |
| EMC Emitted Interference | Complies with EN 60947-5-1 |
| Safety Integrity Level (SIL) | Compliant with IEC 61508, for delayed release circuit SIL2 |
| Hardware Fault Tolerance | According to IEC 61508: 1 |
| Safety Device Type | Type A according to IEC 61508-2 |
| PFHD | 0.0000000027 1/h with high demand rate according to EN 62061 |
| PFDavg | 0.0000024 1/y with low demand rate according to IEC 61508 |
| T1 Value | 20 years for proof test interval or service life according to IEC 61508 |
| Number of Outputs | 1 as NC contact for signaling function instantaneous, 2 as NO contact safety-related |
The Siemens Safety Relay 3TK2828-1BB41 is a vital component in the realm of industrial automation, designed to enhance the safety of machinery and personnel. This safety relay is engineered to monitor a variety of safety devices such as emergency stop buttons, safety doors, and light curtains, ensuring that hazardous movements are halted in a timely and reliable manner.
Crafted with a 24V dc operating voltage and equipped with screw terminals for secure and straightforward installation, the 3TK2828-1BB41 is a user-friendly solution for safety applications. The relay features multiple safety contacts, including two normally open (NO) instantaneous contacts and two normally open (NO) time-delayed contacts, alongside one normally closed (NC) monitoring contact. This configuration allows for flexibility in safety circuit design, catering to diverse industrial requirements.
The compact design, with a width of just 45.0mm, ensures that the relay can be easily integrated into control panels without occupying excessive space. The device boasts an IP20 protection rating, signifying that it is protected against solid objects larger than 12mm but not against water, making it suitable for use in dry and controlled environments.
With its ability to achieve a Safety Integrity Level (SIL) of 3/2 and Performance Level (PL) of e/d, the Siemens 3TK2828-1BB41 is compliant with stringent safety standards, providing peace of mind that it will perform reliably in critical safety applications. The relay's robust construction and adherence to international safety standards make it an essential component for manufacturers and engineers who prioritise operational safety and compliance.
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Frequently Asked Questions
What is the voltage rating for this safety relay?
The safety relay is rated for a control supply voltage of 24 V DC.
Can this safety relay be used for protective door monitoring?
Yes, the safety relay is suitable for protective door monitoring applications.
What type of terminals does this safety relay have?
It is equipped with screw-type terminals for secure and reliable connections.
What is the width of the safety relay?
The safety relay has an overall width of 45 mm, making it compact and suitable for various installations.
Is this safety relay suitable for monitoring pressure-sensitive safety mats?
Yes, it can be used for pressure-sensitive mat monitoring, enhancing safety in areas where personnel might be present.
What is the IP rating of this safety relay?
The safety relay has an IP20 protection rating, indicating it is protected against solid objects larger than 12.5 mm but not against water.
What are the ambient temperature limits 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 an automatic start function?
Yes, it features an autostart function for ease of integration into safety systems.
What is the maximum installation altitude for this safety relay?
The maximum installation altitude for the safety relay is 2,000 meters above sea level.
What certifications does this safety relay hold?
The safety relay holds several certifications, including BG, SUVA, UL, CSA, and it complies with standards such as EN 60204-1, EN ISO 12100, EN 954-1, and IEC 61508.
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Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
