Recommended safety relays
Application document for functional safety STO, SS1 (ISO 13849-1)
74 Compact User Manual, 09/2016, A5E34871844AM
Manufacturer,
order number
2 Coupling relay for SIL3 Phoenix Contact
PSR-SPP-24DC/FS
P/1X1/1X2
- 2981981
(https://www.phoenixcontact.com/at/produkte/2981981)
Coupling relay for SIL 3 high and low demand applications,
coupled with digital output signals to the I/O, 1 enable current
path, 1 feedback signal current path, 1 digital signaling out-
put, safe-state-off applications, test pulse filter, PSR-TBUS
connection, pluggable spring-loaded terminal
2 Relay module for coupling
digital outputs
Phoenix Contact
PR1-RSC3-LDP-
24DC/2X21AU -
2834520
(https://www.phoenixcontact.com/online/portal/at?uri=pxc-oc-
itemdetail:pid=2834520)
Preassembled relay module with screw connection, consist-
ing of: Relay socket, multi-layer contact relay, pluggable
display/interference suppression module and holding bar.
Input voltage: 24 V DC, 2 changeover contacts, 8 A
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