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Safety Relays and Analysis Modules 

Analysis modules monitor through-beam sensors to detect interruptions and switch off the safety output.  
Safety relays evaluate signals from emergency stop switches and protective devices and enable standard-compliant safety functions in accordance with EN ISO 13849-1, EN 60204-1, as well as potential-free disconnection of electrical circuits.
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SR4B3B01S

SR4B3B01S Safety Relay Basic Module

Number of Safety Outputs stop 0 3 Stop Category (EN 60204-1) 0 Connection Screw Clamp (pluggable)
SR4D3B01S

SR4D3B01S Safety Relay Basic Module

Number of Safety Outputs stop 0 2 Stop Category (EN 60204-1) 0 / 1 Connection Screw Clamp (pluggable)
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