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Pepperl+Fuchs
70185883
K-System Analog Isolator, Repeater, 1 Channel Isolated Barrier, 24VDC Supply, SMART Fire Alarm Input
$389.76$389.76 -
Pilz
751108
Safety Relay Module, PNOZsigma, PNOZ s8 C, 24VDC, 2NO, Spring-Loaded Terminals, Contact Expansion, 12.5mm, Category 4/PL e/SIL 3, DIN Rail, IP40
$209.00$209.00 -
$318.71$318.71 -
$219.25$219.25 -
$104.65$104.65 -
$445.78$445.78 -
Available Now! 
Available Now!Wieland
R1.188.2010.0
Safety Relay, SNV 4063KL-C, 3s Time Range, 24VDC, Spring Clamp, Push-In Terminals, Pluggable, Drop In Replacement for Schneider # XPSABV1133C, Sick # UE45-3S13D3_3
$212.18$212.18 -
Wieland
R1.188.2020.0
Safety Relay, SNZ 4052K-C, 24VAC/DC, Spring Clamp, Push-In Terminals, Pluggable, Drop In Replacement for Schneider # XPSBCE3110C and for Sick # UE42-2HD3D2
$149.21$149.21 -
$415.92$415.92 -
Euchner
087412
Basic Module ESM-BA3..., Use Up To Category 4 According to EN ISO 13849-1, LED Indicator, 1-Channel or 2-Channel, 3 Redundant Contacts, 1 Aux. Contact
$474.05$474.05 -
Euchner
090057
Contact Expansion ESM-ES..., Use Up To Category 4 According To EN ISO 13849-1, LED Indicator, Control via Safety Base Modules, 3 Redundant Safety Contacts, 1 Aux. Contact, Plug-in Connection
$307.52$307.52 -
Available Now! 
Available Now!Schmersal
101190594
Safety, Control Module, 24VDC, Screw Connection, 24VDC, LED, Flexible, Guard Door
$511.00$511.00
Safety devices are all about protecting people and processes.
They can prevent passage into or monitor activity in dangerous work areas, safety relays will even try to reduce risk to a level that is acceptable if a hazard is detected.