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3TK2834-1BB40 Siemens
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The Siemens 3TK2834-1BB40 is a SIRIUS-series safety relay with relay-enabling circuit. As a two-channel enabling device, it enforces safety interlocking of machinery control circuits. It supports SIL 3 (IEC 61508), PL e (ISO 13849-1) and Category 4 design, and provides cross-circuit detection. Common in protective-door monitoring, emergency-stop chains, and enabling functions in safety circuits, the 3TK2834-1BB40 interfaces floating or non-floating sensors within automated control systems.
Best Suited For
- Protective-door monitoring
- Emergency-stop or enabling circuit applications
- Safety functions requiring SIL 3 / PL e / Cat 4 compliance
- Safety interlock in machine control systems
Technical Specifications
I/O & Electrical
Certifications
Safety device per IEC 61508 (SIL 3), ISO 13849-1 (PL e, Cat 4) with cross-circuit-proof design.