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CEP: 04630-010
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Telephone 55 11 5506 7588
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Price Each

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Qty Unit Price
1 32,312.01 Rs
In stock in the UK
(Order in multiples of 1)
  • RoHS Status
  • RS Stock No. 411-2242
  • Brand Siemens
  • Mfr Part No. 3TK28211CB30


Series 3TK28
Function Safety Switch/Interlock
Safety Category BG, Category 3 EN 954-1, CSA, EN 60204-1, EN 954-1, EN ISO 12100, IEC 61508, PLc ISO 13849-1, SIL 1 PER IEC 61508, SUVA, UL
Pole Configuration 3P (Safety), SP (Auxiliary)
Normal State Configuration 3NO/NC
Contact Current Rating 5 A
Contact Voltage Rating 230 V ac/dc
Auxiliary Contacts NC
Safety Contacts 3NO
Number of Channels 1
Reset Method Automatic, Monitored
Length 120mm
Width 22.5mm
Control Voltage 24 V ac/dc
CAD Drawing 3D CAD Model
Minimum Operating Temperature -25°C
Depth 120mm
Terminal Type Screw
Supply Voltage 24 V ac/dc
Number Of Auxiliary Contacts 1
Mounting Style Snap On
Maximum Operating Temperature +60°C
Dimensions 120 x 22.5 x 120 mm
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SIRIUS 3TK28 Safety Relays Basic Units 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

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

Safety Relay

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RS Stock No.: 411-2242

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