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3TK2805-0BB4 Siemens
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The Siemens 3TK2805-0BB4 is a contactor safety combination from the SIRIUS 3TK28 relay family. It integrates safety relay and contactor enabling circuits under a self-latching mechanism rated for 24 V DC control. This device performs fault-tolerant monitoring of safety functions such as emergency-stop and guard-interlock systems within industrial control architectures, commonly used in machinery safety circuits to enable contactor operation, provide feedback monitoring, and drive safety-rated outputs.
Best Suited For
- Emergency-Stop circuit integration
- Guard-interlock monitoring
- Contactor enabling in safety circuits
- Retrofitting with SIRIUS 3SK1 series via direct pin-compatible replacement
Technical Specifications
I/O & Electrical
Communication & Power
Physical & Environmental
Certifications
UL, EAC, functional safety type-examination certificate, special test certificate, Chinese quality mark (as listed for 3TK2806-0BB4 - direct series variant) ([mall.industry.siemens.com](https://mall.industry.siemens.com/mall/en/WW/Catalog/Product/3TK28060BB4?utm_source=openai))