The safe coupling relay couples digital output signals from failsafe controllers to I/O devices and is used for power adaptation and electrical isolation. The safe coupling relay can be used in high- and low-demand applications. The safe coupling relay safely interrupts circuits.
PSR-PC21-2NO-2NC-24DC-SC
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Coupling relay
1086945
Coupling relay for SIL 3 high and low-demand applications, coupled digital output signals to the I/O, 2 independently controllable enabling current paths, 2 confirmation current paths, safe state off applications, test pulse filter, pluggable screw terminal block
Product details
cULus Listed
Approval ID: E140324IECEx
Approval ID: IECEx ULD 19.0023XATEX
Approval ID: DEMKO 19 ATEX 2240XcULus Listed
Approval ID: E360692CCC
Approval ID: 2022122304115696
Your advantages
Up to SIL 3 in accordance with IEC 61508, IEC 61511, and IEC 50156
Approved for Class I, Zone 2 applications
Force-guided contacts in accordance with EN 50205
Easy proof test according to IEC 61508 thanks to integrated signal contact
Low housing width of just 12.5 mm
Long service life thanks to filtering of controller test pulses
2 enabling current paths, 2 confirmation current paths
Independent control of the relay channels possible