Siemens 3TK2 828-1BB41 SIRIUS Safety Relay with Relay Enabling Circuits (EC), EC Instant.: 2 N.O. Contacts, EC Delayed: 2 N.O., 0.05-3s SC: 1 N.C., Autostart, Basic Device, Max. Achievable SIL: 3/2, PL: e/d; Screw Terminals, 45mm Width, 24V DC Operation
SIRIUS 3TK28 27/28 Safety Relays with Timed Delay
The SIRIUS 3TK28 27/28 Safety Relays with Timed Delay provide the functionality of time delayed contacts within a 45mm housing. The time delay is adjustable for each unit. Two different types offer a time delay from 0.05s up to 3s or 0.5s up to 30s. While standard safety contacts in these units are certified up to Category 4, time delayed outputs only reach a Category 3 level according to EN954-1.
Attribute | Value |
|---|---|
| Supply Voltage | 24V dc |
| Number of Channels | 1 |
| Safety Contacts | 2 |
| Function | Speed/Standstill Monitoring |
| Auxiliary Contacts | 1 |
| Reset Method | Automatic |
| Range | SIRIUS |
| Terminal Type | Screw |
| Safety Category | 4 |
| Series | 3TK28 |
| Width | 44.8mm |
| Depth | 120mm |
| Length | 138.5mm |
| Performance Level | e |
| Brand | Siemens |
|---|
