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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3TK2827-1BB41 |
| Alternative Part Number | 3TK28271BB41 |
| Manufacturer | Siemens |
| Product Type | Safety Relay |
| Supply Voltage | 24 V DC |
| Mounting Type | Screw Mount and Snap-on Mounting |
| Dimensions | Width: 45 mm, Height: 115 mm, Depth: 106 mm |
| Connection Type | Screw-type Terminals |
| Conductor Cross-section | Solid: 1x (0.5 ... 4.0 mm²), 2x (0.5 ... 2.5 mm²); Finely Stranded with Core End Processing: 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²) |
| AWG Conductors | Solid: 2x (20 ... 14); Stranded: 2x (20 ... 14) |
| Safety Integrity Level (SIL) | SIL3 for basic functions, SIL2 for delayed release circuit |
| Performance Level (PL) | PL e for basic functions, PL d for delayed release circuit |
| Category according to EN ISO 13849-1 | Category 4 |
| Outputs | 2 NO safety-related instantaneous contacts, 2 NO safety-related delayed switching contacts, 1 NC signalling function instantaneous contact |
| Monitored Start | Yes |
| Emergency Stop Function | Yes |
| Pressure-sensitive Mat Monitoring | Yes |
| Suitable for Safety Circuits | Yes |
| Certificates/Approvals | UL, CSA, EN 60204-1, EN ISO 12100, EN 954-1, IEC 61508, TÜV certificate |
The Siemens 3TK2827 Series Safety Relay is a vital component designed to enhance the safety of automated processes in industrial settings. This particular model, the 3TK2827-1BB41, operates with a 24 V dc control supply voltage and is engineered for secure and reliable integration into safety circuits.
Crafted for versatility, the safety relay boasts a compact design with dimensions of 45 x 115 x 106 mm, making it suitable for screw mounting in a variety of orientations to suit different installation requirements. The device is equipped with screw-type terminals, allowing for straightforward and secure connections with a range of conductor cross-sections.
The 3TK2827-1BB41 is characterised by its robust construction and is rated for an insulation voltage of 300 V, ensuring it can withstand challenging industrial environments. It operates efficiently within a temperature range of -25 to +60°C, maintaining performance even in demanding conditions.
This safety relay is designed with multiple safety functions, including monitored start-up and an emergency stop function, which are essential for maintaining operational safety standards. It also supports both single-channel and two-channel wiring for safety-related inputs, providing flexibility in safety system design.
With certifications from recognised bodies such as UL and CSA, and compliance with standards like EN 60204-1 and IEC 61508, the Siemens 3TK2827-1BB41 is a reliable choice for engineers looking to implement or upgrade safety measures in their control systems.
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Frequently Asked Questions
What is the voltage rating for the SIRIUS Safety Relay?
The SIRIUS Safety Relay operates with a control supply voltage of 24 V DC.
Can this safety relay be used for emergency stop functions?
Yes, the SIRIUS Safety Relay is designed for use with emergency stop units and includes features for emergency stop circuit monitoring.
What are the dimensions of this safety relay?
The dimensions of the safety relay are 45 mm in width, 115 mm in height, and 106 mm in depth.
Is this relay suitable for monitoring floating sensors?
Yes, the safety relay is suitable for monitoring floating sensors.
What is the maximum operating altitude for this relay?
The maximum operating altitude for the relay is 2000 metres above sea level.
What type of terminals does this safety relay have for electrical connections?
This safety relay is equipped with screw-type terminals for electrical connections.
What is the insulation voltage rated value for this relay?
The insulation voltage rated value for the relay is 300 V.
What is the ambient operating temperature range for the SIRIUS Safety Relay?
The ambient operating temperature range for the relay is from -25 °C to +60 °C.
Does this safety relay have a TÜV certificate?
Yes, the safety relay has a TÜV certificate, indicating it has been tested and meets specific safety standards.
What is the product brand name of this safety relay?
The product brand name of the safety relay is SIRIUS.
