Siemens Single-Channel Safety Switch/Interlock Safety Relay, 24V ac/dc, 3 Safety Contacts

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Siemens SIRIUS 3SK1 Safety Relay 24V ac/dc, Single Channel 4 Safety Contacts
RS Stock No.
784-5780

Each

SGD675.25

(exc. GST)

SGD736.02

(inc. GST)

RS Stock No.:
411-2242
Mfr. Part No.:
3TK2821-1CB30
Manufacturer:
Siemens
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Brand

Siemens

Supply Voltage

24V ac/dc

Number of Channels

1

Safety Contacts

3

Function

Safety Switch/Interlock

Auxiliary Contacts

1

Range

SIRIUS

Terminal Type

Screw

Series

3TK28

Depth

120mm

Safety Category

3

Width

22.5mm

Length

120mm

Performance Level

c

COO (Country of Origin):
DE

SIRIUS 3TK28 Safety Relay, Basic Units


The SIRIUS safety relays with relay enabling circuits feature positively-driven NO and NC contacts, in pairs, which means if one of the contacts welds, then the other contact is used to shut down the circuit. A positively-driven feedback signal contact (NC contact) detects the fault of the defective NO contact.

Minimum programming time and high degree of user friendliness thanks to parametrisation display
Device versatility means reduced storage requirements
Compact design
Electrically isolated safety outputs
Can be used in ambient temperatures up to 70 °C
Standard relay enable circuits (positively driven)
Suitable for use with Expansion module 3TK28 30

Standards

EN 60204-1, EN 92, EN 954-1.

Standards

EN 60204-1, EN 292, EN 954-1

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