Siemens Single-Channel Speed/Standstill Monitoring Safety Relay, 24V ac, 2 Safety Contacts
- RS Stock No.:
- 411-2270
- Mfr. Part No.:
- 3TK2827-1AB20
- Brand:
- Siemens
Discontinued product
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- RS Stock No.:
- 411-2270
- Mfr. Part No.:
- 3TK2827-1AB20
- Brand:
- Siemens
Technical Reference
Legislation and Compliance
RoHS Status: Not Applicable
Product Details
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.
Standard relay enable circuits (positively driven)
Suitable for use with Expansion module 3TK28 30
Single/two-channel sensor connection
Width 45mm
Suitable for use with Expansion module 3TK28 30
Single/two-channel sensor connection
Width 45mm
Standards
EN 60204-1, EN 92, EN 954-1.
Specifications
Attribute | Value |
|---|---|
| Supply Voltage | 24V ac |
| Number of Channels | 1 |
| Safety Contacts | 2 |
| Function | Speed/Standstill Monitoring |
| Auxiliary Contacts | 1 |
| Reset Method | Monitored |
| Range | SIRIUS |
| Terminal Type | Screw |
| Safety Category | 4 |
| Depth | 120mm |
| Width | 45mm |
| Series | 3TK28 |
| Performance Level | e |
| Length | 138.5mm |
- RS Stock No.:
- 411-2270
- Mfr. Part No.:
- 3TK2827-1AB20
- Brand:
- Siemens