Safety Relays | RS
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    Safety Relays

    A safety relay is an automation device that monitors for potential errors or faults in machinery or plants and works to prevent injury and reduce risk. If an error occurs, the safety relay initiates the appropriate response to reduce the risk and bring the environment back to a safe, acceptable level.Monitoring processes using safety relays protects both the machinery and the employees, prevents potentially expensive maintenance and equipment replacement, and reduces risk of human injury. Example functions include initiating a controlled pause in machinery or equipment to safely stop movement until an obstacle is removed. They can also be used as an emergency stop mechanism, switching off the power to particular machinery or plants until it is safe to resume power and continue.

    What types of safety relays are there?

    Safety relays can be single function or multi-function. Single function relays monitor for a specific type of activity and are programmed individually to monitor their respective tasks. Multi-function safety relays can monitor different functions and can be used in place of several single function, individual units to monitor the same number of activities. The benefits of using multi-function relays include simpler installation and less wiring as fewer individual units are needed. This also makes more economical use of panel space, additionally giving greater flexibility to make changes within the design or panel as fewer units need to be removed or repositioned.

    Where are safety relays used?

    Safety relays are found across many industries where automation is used within a process or for a whole process. Anyone can integrate a safety relay within a circuit to create a safety circuit without any specific training. They are often found in the following control devices:Two hand controls, Movable guards, Light curtains, light barriers and light grids, Magnetic switches, Safety mats and pressure sensitive mats, Three position devices, Non-contact safety sensors, Safety switches, Emergency stop buttons

    542 Products showing for Safety Relays

    Phoenix Contact
    -
    24V dc
    2
    5
    Emergency Stop
    -
    Manual
    PSRmini
    4
    e
    3
    Plug In
    -
    -
    -
    114.5mm
    -
    4
    PSR-MC82
    17.5mm
    Siemens
    -
    24V ac/dc
    1
    4
    Safety Monitoring
    -
    Automatic, Monitored
    SIRIUS
    4
    e
    3
    Screw
    CCC, CE, CSA, EAC, UL
    -
    -
    122mm
    -
    -
    3SK1
    22.5mm
    IDEM
    -
    24V ac/dc
    1
    3
    Emergency Stop
    1
    Automatic
    Viper
    4
    e
    3
    Plug In
    -
    -
    -
    99mm
    -
    -
    SCR-21-i Pluggable Terminals
    114mm
    Pilz
    -
    24 → 240V ac/dc
    1, 2
    3
    Emergency Stop
    1
    Manual
    PNOZ X
    3
    e
    3
    Screw
    -
    -
    -
    121mm
    -
    -
    PNOZ X2.8P
    22.5mm
    Schmersal
    -
    24V dc
    1, 2
    2
    Emergency Stop
    -
    Automatic
    SRB E, Multi-function
    1
    e
    3
    Plug In, Screw
    -
    -
    -
    98mm
    -
    -
    SRB-E
    115mm
    Schneider Electric
    -
    250V ac
    8
    -
    Safety Relay
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    -
    24V ac/dc
    -
    -
    Emergency Stop
    -
    Automatic, Monitored
    Harmony XPS
    -
    -
    -
    Screw
    -
    Yes
    Green Premium
    120mm
    -
    -
    XPSBAC
    22.5mm
    Phoenix Contact
    -
    24V dc
    2
    2
    Emergency Stop
    2
    Automatic
    PSRmini
    4
    -
    3
    Screw
    -
    -
    -
    102.5mm
    -
    -
    PSR-MS60-2NO-24DC-SC
    7mm
    Pilz
    -
    24V dc
    2
    3
    Time Delay
    1
    Manual
    PNOZsigma
    4
    e
    -
    Cage Clamp
    -
    -
    -
    120mm
    -
    -
    PNOZ s9 C
    17.5mm
    Weidmüller
    -
    24V dc
    -
    -
    -
    -
    -
    SAFESERIES
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    SCS
    -
    ABB Jokab
    Configurable
    265 V ac, 375V dc
    2
    4
    Safety Monitoring
    3
    Multi-Reset
    Sentry
    4
    e
    3
    Screw
    CE
    -
    -
    120mm
    -
    -
    SSR10M
    120mm
    Omron
    Configurable
    24V dc
    2
    2
    Emergency Stop
    -
    -
    Advanced Unit
    4
    e
    3
    Cage Clamp
    -
    -
    -
    22.5mm
    -
    -
    G9SR
    99mm
    Pilz
    -
    24V dc
    2
    2
    Emergency Stop
    2
    Automatic & Manual
    PNOZ X
    -
    -
    -
    Screw
    -
    -
    -
    121mm
    -
    -
    PNOZ XV2
    45mm
    Schmersal
    -
    24V ac/dc
    1, 2
    3
    Emergency Stop
    1
    Automatic
    PROTECT SRB
    4
    e
    3
    Screw
    -
    -
    -
    121mm
    -
    -
    SRB 301MC
    22.5mm
    Phoenix Contact
    -
    24V ac/dc
    2
    -
    Two Hand Control
    -
    -
    PSRclassic
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    PSR SPP
    -
    Pilz
    -
    24V dc
    2
    3
    Emergency Stop
    1
    Automatic & Manual
    PNOZsigma
    4
    e
    -
    Cage Clamp
    -
    -
    -
    120mm
    -
    -
    PNOZ s4 C
    22.5mm
    Phoenix Contact
    -
    24 → 230V ac/dc
    2
    3
    Emergency Stop
    -
    Manual
    PSRmini
    4
    e
    3
    Plug In
    -
    -
    -
    114.5mm
    -
    -
    PSR-MC32
    22.5mm
    Siemens
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Wieland
    -
    24V dc
    2
    3
    Safety Monitoring
    -
    Monitored
    safeRELAY
    4
    e
    -
    Screw
    -
    -
    -
    96.5mm
    -
    -
    SNV 4063KL
    114mm
    Siemens
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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