Our TÜV-certified SIL coupling relays for safe switch-on and switch-off enable the electrical isolation of signals up to SIL 3. System downtimes can be reduced to a minimum by diagnostic functions, such as integrated proof test and line load monitoring. The SIL 3 coupling relays with ATEX, G3 coating, and temperature range up to 70°C are suitable for special applications in the process industry.
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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
Safe coupling relay with force-guided contacts, 2 changeover contacts, 1-channel, fixed screw terminal block, width: 17.5 mm
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, safe state off applications, test pulse filter, fixed screw terminal block
Safe coupling relay with force-guided contacts, electrically isolated, 2 changeover contacts, 1-channel, push-in connection, width: 14 mm
Safe coupling relay with force-guided contacts, 5 N/O contacts, 2 N/C contacts, 1-channel, plug-in screw terminal block, width: 22.5 mm
Safe coupling relay for SIL 3 high- and low-demand applications, couples digital output signals to the periphery, two enabling current paths, one signal contact, module for safe state off applications, integrated test pulse filter, plug-in screw connection, width: 17.5 mm
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, safe state off applications, test pulse filter, fixed screw terminal block
Safe coupling relay for SIL 2 high and low demand applications, coupled digital output signals to the I/O, 2 enabling current paths, 1 signal contact, module for safe state off applications, integrated test pulse filter, width: 17.5 mm, pluggable Push-in terminal block
Safe coupling relay for SIL 3 high- and low-demand applications, couples digital output signals to the periphery, one enabling current path, one signal contact, module for safe state off applications, test pulse filter, fuse, plug-in screw connection, width: 17.5 mm
Coupling relay for SIL 2 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
The PSR-PLC21 is a safe coupling relay for power adaptation and electrical isolation in high- and low-demand applications. With the PSR-PLC21, circuits can be interrupted in accordance with safety requirements for the safe shutdown of a system. The safety function is designed in accordance with EN 60204-1 stop category 0.
Safe coupling relays for process technology
Applications in the process industry are fundamentally different from those in the manufacturing industry. As such, safety technology must meet different requirements in this industry.
Safe coupling relays are often used in process technology systems; they electrically isolate and amplify the power of electrical signals for functional safety. Phoenix Contact has developed SIL-certified coupling relays to meet the demands of process technology applications.
Phoenix Contact has force-guided coupling relays and safe force-guided coupling relays in its portfolio. Forced guidance uses mechanical means to prevent N/O and N/C contacts from closing at the same time. This technology therefore provides the highest level of functional safety.
The safe coupling relays are also SIL-certified. SIL, or safety integrity level, is a method for assessing a system’s reliability. Levels SIL 1, SIL 2, and SIL 3 must always be viewed in relation to the hazard.
If you choose our SIL-certified coupling relay, you will not need to conduct an assessment. The SIL coupling relays have been tested and certified by an independent institute. All safety-related characteristics are therefore available. You can also carry out comprehensive diagnostics with an integrated test pulse filter.
The Phoenix Contact product portfolio features SIL-certified coupling relays for safe switch-on (also known as fire and gas or energized to safe) and for safe shutdown (emergency shutdown or de-energized). Our safe coupling relays meet the specific demands of the process industry – including for use in potentially explosive areas.
Choose between the highly compact PSRmini product family and the conventional PSRclassic product range in a market-standard design.
Space savings of up to 70% with PSRmini coupling relays
With an overall width starting from 6 mm, PSRmini relays are the narrowest SIL coupling relays on the market.
PSRclassic conventional coupling relays for safe switch-off
In the PSRclassic series, you will find SIL coupling relays for safe switch-off. The conventional coupling relays are characterized by a wide range of functions and versions. The housing width corresponds to the market standard.
The safe coupling relays are tailored to control systems in the process industry.
These include the following safety instrumented systems (SIS):
The force-guided contacts enable quick and easy diagnostics. This ensures short downtimes during scheduled maintenance phases.
Easy proof test
Line monitoring
Termination Carriers and PSRmini: Unrivaled packing density in the control cabinet
The Termination Carriers are designed to accommodate the PSRmini and PSRclassic. With the module carriers, you can reduce your wiring effort and speed up installation.
Thanks to the consistent concept and special system technology, Termination Carriers help you prevent wiring faults, which would otherwise result in expensive and time-consuming troubleshooting. We will be happy to adapt the Termination Carriers to suit your specific requirements.
The flexible I/O marshalling system from Phoenix Contact
Smart I/O, in other words universal I/O modules, provide you with entirely new possibilities in the process industry, both for new plants and for retrofits.
The flexible I/O marshalling system from Phoenix Contact helps make Universal I/O truly “universal” on the interface and marshalling level. The system combines a standardized basic module and replaceable input/output accessories (IOAs) with various electrical functions.
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