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Safety Switches & Relays

A safety relay is a device that monitors for potential errors or faults in machinery or plants and works to prevent injury and reduce risk. When an error occurs, the safety relay initiates a response to bring the risk back to a safe, acceptable level. Safety relays protect both machinery and employees, preventing potential expensive maintenance and equipment replacement.Example functions include initiating a controlled pause in machinery or equipment to safely stop movement. They can also be used as an emergency stop mechanism, switching off the power to particular machinery or plants.Single function or multi-function?Safety relays can be single function or multi-function. Single function relays monitor a specific type of activity while multi-function safety relays can monitor different functions. Multi-function safety relays can be used in place of several single function, individual units.The benefits of using multi-function relays include simpler installation and less wiring. As fewer individual units are needed, using multi-function relays can also free up panel space. Multi-function safety relays give you greater flexibility to make changes within the design or panel.Where would you find a safety relay?Safety relays are often found in the following control devices:Two hand controls Movable guardsLight curtains, light barriers and light gridsMagnetic switchesSafety mats and pressure sensitive matsThree position devicesNon-contact safety sensorsSafety switchesEmergency stop buttonsWho uses them?Anyone can integrate a safety relay within a circuit to create a safety circuit without any specific training.

Showing 25–48 of 81 results

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  • Product image for PSR-SCP-24UC/ESA4/2X1/1X2

    Phoenix Contact 24V ac/dc Safety Relay - Dual Channel With 2 Safety Contacts , 1 Auxiliary Contact

    RS Stock No.
    6667047
    Brand
    Phoenix Contact
    Mfr. Prt No.
    2963750
    IDR
    4,317,062.62
  • Product image for SENTRY SSR10M 85-265AC 120-275DC 3NO 1NC

    ABB Jokab Sentry 265 V ac, 375V dc Safety Relay - Dual Channel With 4 Safety Contacts , Multi-Reset Reset

    RS Stock No.
    1760032
    Brand
    ABB Jokab
    Mfr. Prt No.
    2TLA010050R0100 Sentry SSR10M VAC/VDC
    IDR
    3,601,083.48
  • Product image for Wieland 24 V ac/dc Safety Relay - Dual Channel With 2 Safety Contacts with 1 Auxiliary Contact, Compatible With

    SNZ4052 K-A 2 HAND SAFETY RELAY,24VAC/DC

    RS Stock No.
    5151787
    Brand
    Wieland
    Mfr. Prt No.
    R1.188.0530.1
    IDR
    3,607,691.55
  • Product image for SAFETY RELAY, SINGLE CHANNEL, 24VAC/DC

    SAFETY RELAY, SINGLE CHANNEL, 24VAC/DC

    RS Stock No.
    8128967
    Brand
    Eaton
    Mfr. Prt No.
    118701 ESR5-NO-41-24VAC-DC
    IDR
    3,610,838.25
  • Product image for PNOZ S7.2 C 24VDC 4 N/O 1 N/C EXPAND

    PNOZ S7.2 C 24VDC 4 N/O 1 N/C EXPAND

    RS Stock No.
    1919870
    Brand
    Pilz
    Mfr. Prt No.
    751177
    IDR
    3,564,896.43
  • Product image for Pilz 24 V ac/dc Safety Relay - Single Channel With 2 Safety Contacts PNOZ X Range Compatible With Safety

    PNOZ X7 EMERGENCY STOP 24VAC/DC 2NO

    RS Stock No.
    3247274
    Brand
    Pilz
    Mfr. Prt No.
    774059
    IDR
    2,892,236.86
  • Product image for PSR-SCP- 24DC/FSP/2X1/1X2

    PSR-SCP- 24DC/FSP/2X1/1X2

    RS Stock No.
    7125260
    Brand
    Phoenix Contact
    Mfr. Prt No.
    2986960
    IDR
    3,816,632.43
  • Product image for Expandable Relay 3PST-NO, 1 NC

    Omron 24V ac/dc Safety Relay - Single or Dual Channel With 3 Safety Contacts , 1 Auxiliary Contact

    RS Stock No.
    0549609
    Brand
    Omron
    Mfr. Prt No.
    G9SA-301 24AC/DC
    IDR
    3,693,176.90
  • Product image for PNOZ S7 C 4 N/O 1 N/C COATED

    PNOZ S7 C 4 N/O 1 N/C COATED

    RS Stock No.
    1919873
    Brand
    Pilz
    Mfr. Prt No.
    751187
    IDR
    3,908,306.29
  • Product image for Pilz 24 V dc Safety Relay - Single Channel With 4 Safety Contacts PNOZ X Range Compatible With Expansion Module

    PZE X4 SAFETY RELAY WITH LED,24VDC 4NO

    RS Stock No.
    3620168
    Brand
    Pilz
    Mfr. Prt No.
    774585
    IDR
    3,981,729.29
  • Product image for Two hand control relay,3PST-NO,Type IIIc

    Omron 24V ac/dc Safety Relay - Dual Channel With 3 Safety Contacts , 1 Auxiliary Contact

    RS Stock No.
    7579326
    Brand
    Omron
    Mfr. Prt No.
    G9SA-TH301 AC/DC24
    IDR
    4,633,096.19
  • Product image for Safety Relay DPST-NO, auto-reset

    Omron 24V ac/dc Safety Relay - Dual Channel With 2 Safety Contacts , Automatic Reset

    RS Stock No.
    0549473
    Brand
    Omron
    Mfr. Prt No.
    G9SB-200-B AC/DC24
    IDR
    4,453,839.18
  • Product image for Safety relay to emergency stop

    SAFETY RELAY TO EMERGENCY STOP

    RS Stock No.
    7427471
    Brand
    Phoenix Contact
    Mfr. Prt No.
    2981059
    IDR
    4,032,810.72
  • Product image for PSR-SCP- 24UC/THC4/2X1/1X2

    PSR-SCP- 24UC/THC4/2X1/1X2

    RS Stock No.
    6667050
    Brand
    Phoenix Contact
    Mfr. Prt No.
    2963721
    IDR
    4,691,939.48
  • Product image for Safety Relay,3PST-NO,2 ch,manual-reset

    Omron 24V ac/dc Safety Relay - Dual Channel With 3 Safety Contacts , 1 Auxiliary Contact

    RS Stock No.
    7579308
    Brand
    Omron
    Mfr. Prt No.
    G9SB-3012-C AC/DC24
    IDR
    4,652,186.17
  • Product image for Safety Relay,DPST-NO,2 ch,manual-reset

    Omron 24V ac/dc Safety Relay - Dual Channel With 2 Safety Contacts

    RS Stock No.
    7579291
    Brand
    Omron
    Mfr. Prt No.
    G9SB-2002-C AC/DC24
    IDR
    4,701,274.69
  • Product image for PSR-SCP-24UC/ESA2/4X1/1X2/B

    PSR-SCP-24UC/ESA2/4X1/1X2/B

    RS Stock No.
    6667044
    Brand
    Phoenix Contact
    Mfr. Prt No.
    2963802
    IDR
    3,215,298.06
  • Product image for Pilz 24 V ac/dc Safety Relay - Single Channel With 3 Safety Contacts PNOZ X Range with 1 Auxiliary Contact, Compatible

    PNOZ/X1 SAFETY RELAY,24VAC/DC 3NO 1NC

    RS Stock No.
    2391033
    Brand
    Pilz
    Mfr. Prt No.
    774300
    IDR
    4,433,280.74
  • Product image for Pilz 24 V ac/dc Safety Relay - Dual Channel With 2 Safety Contacts PNOZ X Range Compatible With Safety Switch/Interlock

    PNOZ/X2.1 SAFETY RELAY,24VAC/DC 2NO

    RS Stock No.
    2391055
    Brand
    Pilz
    Mfr. Prt No.
    774306
    IDR
    4,441,252.38

  • RT6 SAFETY RELAY, 24VDC, 3NO/1NC

    IDR
    0.00

  • RT9 SAFETY RELAY, 24VDC, 2NO

    IDR
    0.00
  • Product image for SAFETY RELAY, DUAL CHANNEL, 24VAC/DC

    SAFETY RELAY, DUAL CHANNEL, 24VAC/DC

    RS Stock No.
    8128957
    Brand
    Eaton
    Mfr. Prt No.
    118700 ESR5-NO-21-24VAC-DC
    IDR
    4,911,998.70
  • Product image for Pilz 24 V ac/dc Safety Relay - Dual Channel With 2 Safety Contacts PNOZ X Range Compatible With Light Beam/Curtain,

    PNOZ/X2 SAFETY RELAY W/LED,24VAC/DC 2NO

    RS Stock No.
    2391049
    Brand
    Pilz
    Mfr. Prt No.
    774303
    IDR
    5,136,987.75
  • Product image for Pilz 24 V dc Safety Relay - Dual Channel With 3 Safety Contacts PNOZ s9 Range with 1 Auxiliary Contact, Compatible

    PNOZ S9 C 24VDC 3 N/O T 1 N/C T

    RS Stock No.
    1919859
    Brand
    Pilz
    Mfr. Prt No.
    751109
    IDR
    4,624,495.21