Phoenix Contact has expanded its process safe/SIL relay line with the SIL 3-rated PSR-FSP/2x1 and the SIL 2-rated PSR-FSP2/2x1.
Features Common to Both Safe Relays
- Two normally open safety outputs and one normally closed status output.
- Completely compatible with the "test pulses" occurring on safe PLC/DCS outputs.
- Inrush requirement is limited for Safe PLC/DCS output compatibility (55mA).
- 17.5mm wide.
- Normally closed status contact can be wired in series to automate the "proof test" for SIL.
- Note: Fuses are not included for the normally open safety outputs on either of these two components.
Major Differences
- The PSR-FSP/2x1 is SIL 3-rated; the PSR-FSP2/2x1 is SIL-2 rated.
- The SIL 3 PSR-FSP/2x1 is internally redundant; the SIL 2 PSR-FSP2/2x1 is not.
- The SIL 2 PSR-FSP2/2x1 costs less.
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