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-N23134Allen-Bradley 440R-N23134 Safety Relay,MSR127RP,115VAC,Manual Monitored,Removable,22.5
$84.99 -
Out of Stock
440R-N23135Allen-Bradley 440R-N23135 Safety Relay,MSR127RP,24V AC/DC,Manual Monitored,Removable,2
$59.99 -
Out of Stock
440R-N23135SAllen-Bradley 440R-N23135S Safety Relay,MSR127RP,24V AC/DC, Reset: Manual Monitored,Rem
$84.99 -
Out of Stock
440R-N23213Allen-Bradley 440R-N23213 Safety Relay,MSR127.1T,24V AC/DC,Automatic/Manual,Fixed,22.5
$89.99 -
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440R-P221AGSAllen-Bradley 440R-P221AGS Control Module,Guardmaster,MSR41, GuardShield Micro 400 Ligh
$379.99 -
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440R-P226AGS-NNRAllen-Bradley 440R-P226AGS-NNR Control Module,Guardmaster,MSR42,GuardShield Light Curtains,
$194.99 -
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440R-P23071Allen-Bradley 440R-P23071 Safety Relay,MSR22LM,24V DC,Special,Removable, 45MM Housing
$109.99 -
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440R-P4NANSAllen-Bradley 440R-P4NANS Extension Module for MSR41 or MSR42 Controllers,Guardmaster,
$279.99 -
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440R-S12R2Allen-Bradley 440R-S12R2 Guardmaster Safety Relay SI Single Input
$329.99 -
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440R-S13R2Allen-Bradley 440R-S13R2 Monitoring Safety Relay,Guardmaster, Single Input,CI,Legacy
$414.99 -
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440R-S23173Allen-Bradley 440R-S23173 Safety Relay,CU4,24V AC/DC,Automatic/Manual,Fixed,22.5MM Hou
$199.99 -
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440R-S23174Allen-Bradley 440R-S23174 Safety Relay,CU4,24V AC/DC,Automatic/Manual,Fixed,22.5MM Hou
$134.99 -
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440R-S23175Allen-Bradley 440R-S23175 Safety Relay,CU4,24V AC/DC,Automatic/Manual,Fixed,22.5MM Hou
$329.99 -
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440R-S35011Allen-Bradley 440R-S35011 MSR 55P Standstill monitor, removable screw terminals, 24V D
$74.99 -
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440R-S35012Allen-Bradley 440R-S35012 MSR 55P Standstill monitor, removable screw terminals, 115V
$84.99 -
Out of Stock
440R-S35013Allen-Bradley 440R-S35013 MSR 55P Standstill monitor, removable screw terminals, 230V
$149.99 -
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440R-S35014Allen-Bradley 440R-S35014 MSR55P Standstill, 24V DC, 200mV to 4V
$94.99 -
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440R-S35015Allen-Bradley 440R-S35015 MSR 55P Standstill monitor, removable screw terminals, 115V
$104.99 -
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440R-S35016Allen-Bradley 440R-S35016 MSR 55P Standstill monitor, removable screw terminals, 230V
$164.99 -
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440R-S845AER-NNLAllen-Bradley 440R-S845AER-NNL Speed Monitoring Safety Relay,Guardmaster,MSR57,Safe Speed a
$1,399.99 -
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64676-64AGAllen-Bradley 64676-64AG Fuse Class CC ATQR10
$9.99 -
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845-10PAllen-Bradley 845-10P Encoder Accessory,Mating Connector,10 Pin
$104.99 -
Out of Stock
845-10P-RTAllen-Bradley 845-10P-RT Encoder Accessory,Mating Connector,10 Pin (Rt Angle)
$114.99 -
Out of Stock
845-12PAllen-Bradley 845-12P Encoder Accessory,Mating Connector,12 Pin (SSI)
$119.99