PHOENIX CONTACT PSR-PS 20-1NO-1NC-24DC-SC Coupling relay-2700356.Coupling relay for SIL 3 high and low-demand applications，

couples digital output signals to the I/O， 1 enabling current path， 1 confirmation current path， 1 digital signal output， safe state off

applications， test pulse filter， fixed screw terminal block.

PHOENIX CONTACT PSR-PS 20-1NO-1NC-24DC-SC Coupling relay-2700356

UptoSIL3in accordance with IEC 61508

Forcibly guided contacts according to EN 50205

Easy proof test according to IEC 61508 thanks to integrated signal contact

Approved for Class I， Zone 2 applications

Low housing width of just 6.8mm

Long service life thanks t of ltering of controller test pulses

1 enabling current path， 1 digital signal output， 1 diagnostic current path

Couples digital output signals from failsafe controllers to I/O devices(valves， etc.) for electrical isolation and power adaptation

Corrosion protection through protective coating on the PCB