5.2.7 3SK1121 Advanced basic unit time-delayed (with relay outputs)
5.2.7.1 Device features
Article number
3SK1121-xCB4y 24 V DC
x = 1: Screw-type terminal; x = 2: Spring-loaded (push-in) terminal
y = delay: 1 = 0.05 ... 3 s; 2 = 0.5 ... 30 s; 4 = 5 ... 300 s
Additional / alternative device characteristics
• 2 instantaneous safety-related outputs (NO contacts)
• 2 time-delayed safety-related outputs (NO contacts),
• Potentiometer for setting the delay time
• Time function: With OFF-delay
3SK1 / 3RQ1 devices
5.2 3SK1 Advanced
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005 73
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