Siemens 3TK2828-2BB41 SIRIUS Safety Relay - 24V DC
Siemens 3TK2828-2BB41 SIRIUS Safety Relay
The Siemens 3TK2828-2BB41 is a SIRIUS safety relay designed for critical safety applications. It operates on a 24V DC power supply and features spring-type terminals for easy connection. This basic device includes 2 normally open (NO) instantaneous enabling circuits (EC) and 2 normally open (NO) delayed enabling circuits with a delay range of 0.05 to 3 seconds. It also has a 1 normally closed (NC) signaling circuit (SC).
This safety relay is suitable for applications requiring high safety integrity, achieving a Safety Integrity Level (SIL) of 3/2 and a Performance Level (PL) of e/d. Its automatic start function and protective door monitoring capabilities make it ideal for emergency stop and safety door circuits in various industrial settings.
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| Voltage | 24V DC |
| Width | 45 mm |
| Terminals | Spring-type |
| EC Instantaneous | 2 NO |
| EC Delayed | 2 NO (0.05-3s) |
| SC | 1 NC |
| Autostart | Yes |
| SIL | 3/2 |
| PL | e/d |
| Mounting | DIN rail |