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Junção Eletro-Eletrônica Ltda.
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São Paulo - SP
CEP: 04630-010
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Telephone 55 11 5506 7588
Fax 55 11 5506 7588
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Av. Nossa Senhora da Glória
Cavaleiros Macaé - Rio de Janeiro
CEP: 27920-360
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Telephone (22) 2105-7777
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Price Each

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Qty Unit Price
1 19,591.00 Rs
In stock in the UK
(Order in multiples of 1)
  • RoHS Status
  • RS Stock No. 411-2242
  • Brand Siemens
  • Mfr Part No. 3TK28211CB30


Safety Contacts 3NO
Contact Voltage Rating 230 V ac/dc
Width 22.5mm
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)
Length 120mm
Depth 120mm
Supply Voltage 24 V ac/dc
Terminal Type Screw
Function Safety Switch/Interlock
Minimum Operating Temperature -25°C
CAD Drawing 3D CAD Model
Maximum Operating Temperature +60°C
Dimensions 120 x 22.5 x 120 mm
Control Voltage 24 V ac/dc
Auxiliary Contacts NC
Series 3TK28
Mounting Style Snap On
Reset Method Automatic, Monitored
Number of Channels 1
Contact Current Rating 5 A
Normal State Configuration 3NO/NC
Number Of Auxiliary Contacts 1
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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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