Safety Relays
The Safety Relays category stocks a broad selection of safety monitoring and control relay modules used to enforce machine safety functions in industrial automation systems. Controls engineers, machine builders, and panel shops rely on these devices to monitor emergency stop circuits, safety gate interlock switches, and two-hand control stations, providing forced-guided contacts and monitored reset functionality required by functional safety standards such as IEC 62061 and ISO 13849. Typical sub-categories include single-function safety relays for dedicated e-stop or light curtain monitoring, configurable safety relays capable of handling multiple input devices and output configurations, and modular safety relay systems that expand I/O capacity for complex safety architectures. Buyers specifying safety relay selection for PLd/SIL 2 applications, Category 3 or Category 4 stop circuits, or dual-channel input monitoring will find a wide inventory available for immediate shipment.
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440R-EM4R2DAllen-Bradley 440R-EM4R2D Expansion Module,Delayed Outputs (EMD),Guardmaster,Monitorin
$279.99 -
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440R-G23107Allen-Bradley 440R-G23107 Safety Relay,MSR124RT,24V DC 230V AC,Automatic/Manual Monito
$189.99 -
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440R-G23108Allen-Bradley 440R-G23108 Safety Relay,MSR124RT,24V DC 115V AC,Automatic/Manual Monito
$74.99 -
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440R-G23110Allen-Bradley 440R-G23110 Monitoring Safety Relay,Guardmaster, 1 N.C. or 2 N.C. or Lig
$69.99 -
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440R-G23214Allen-Bradley 440R-G23214 Safety Relay,MSR142RTP,230VAC,Automatic/Manual Monitored,Rem
$279.99 -
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440R-G23215Allen-Bradley 440R-G23215 Safety Relay,MSR142RTP,115VAC,Automatic/Manual Monitored,Rem
$149.99 -
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440R-G23216Allen-Bradley 440R-G23216 Safety Relay,MSR142RTP,24V AC/DC,Automatic/Manual Monitored,
$279.99 -
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440R-GL2S2PAllen-Bradley 440R-GL2S2P Monitoring Safety Relay,Guardmaster, Guardlocking, Proximity
$94.99 -
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440R-M23080Allen-Bradley 440R-M23080 Safety Relay,MSR138DP,115VAC,Automatic/Manual Monitored,Remo
$89.99 -
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440R-M23082Allen-Bradley 440R-M23082 Safety Relay,MSR138.1DP,115VAC,Automatic/Manual Monitored,Re
$89.99 -
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440R-M23084Allen-Bradley 440R-M23084 Safety Relay,MSR138.1DP,24V AC/DC,Automatic/Manual Monitored
$94.99 -
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440R-M23085Allen-Bradley 440R-M23085 Safety Relay,MSR138.1DP,230VAC,Automatic/Manual Monitored,Re
$94.99 -
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440R-M23086Allen-Bradley 440R-M23086 Safety Relay,MSR138.1DP,115VAC,Automatic/Manual Monitored,Re
$279.99 -
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440R-M23088Allen-Bradley 440R-M23088 Safety Relay,MSR138.1DP,24V AC/DC,Automatic/Manual Monitored
$279.99 -
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440R-M23090Allen-Bradley 440R-M23090 Safety Relay,MSR138.1DP,115VAC,Automatic/Manual Monitored,Re
$219.99 -
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440R-M23092Allen-Bradley 440R-M23092 Safety Relay,MSR138.1DP,24V AC/DC,Automatic/Manual Monitored
$99.99 -
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440R-M23141Allen-Bradley 440R-M23141 Safety Relay,MSR138DP,115VAC,Automatic/Manual Monitored,Remo
$279.99 -
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440R-M23143Allen-Bradley 440R-M23143 Safety Relay,MSR138DP,24V AC/DC,Automatic/Manual Monitored,R
$104.99 -
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440R-M23143SAllen-Bradley 440R-M23143S Monitoring Safety Relay,Guardmaster,MSR138DP,Safety Inputs,D
$74.99 -
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440R-M23145Allen-Bradley 440R-M23145 Safety Relay,MSR138DP,115VAC,Automatic/Manual Monitored,Remo
$104.99 -
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440R-M23147Allen-Bradley 440R-M23147 Safety Relay,MSR138DP,24V AC/DC,Automatic/Manual Monitored,R
$279.99 -
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440R-M23147SAllen-Bradley 440R-M23147S MSR138DP Time Delay safety relay, 2 N.O. out., 3 N.O. time d
$119.99 -
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440R-M23148Allen-Bradley 440R-M23148 Safety Relay,MSR138DP,230VAC,Automatic/Manual Monitored,Remo
$279.99 -
Out of Stock
440R-M23149Allen-Bradley 440R-M23149 Safety Relay,MSR138DP,115VAC,Automatic/Manual Monitored,Remo
$279.99