Phoenix Contact PSR-PS21-1NO-1NC-24DC-SC Coupling Relay, 24V dc

PSR Mini PS21 Optocoupler

The PSR Mini PS21 Optocoupler is a coupling relay that can be used for power adaptation and electrical isolation in high and low-demand applications up to SIL 2. When using this module, circuits are interrupted in a safety-oriented manner.

Used in applications up to 2 SIL according to IEC 61508 & EN 50205
Used for safety-related switching off
6.8mm housing width
Approved for Class l, Zone 2 applications
Can be used in high and low-demand applications
Integrated DCS test pulse filter
Low inrush current
1 undelayed enabling current path
1 undelayed confirmation current path
1 digital signal output
Fixed screw connection

Standards

IEC 61508, EN 50205