3Sk1 Advanced; General Information; Applications - Siemens SIRIUS 3SK1 Manual

3SK1 devices

5.2 3SK1 Advanced

5.2 3SK1 Advanced
5.2.1

General information

The safety relays of the Advanced device series comprise basic devices and input and
output expansions. The Advanced safety relays can be connected by means of a 3ZY12
device connector.
When configuring the system, it must be ensured that input expansions are always mounted
on the left, and output expansions (3SK121 or 3RM1 Failsafe motor starter) on the right of
the basic unit. For control supply voltages of 110 ... 240 V AC/DC, the Advanced device
series can be supplied with the necessary 24 V DC voltage from the 3SK1230 power supply
(which must be positioned on the extreme left in the system).
The focus of the Advanced relay series is on:
● Single devices that can be flexibly parameterized
● Expandability using 3ZY12 device connector on both input and output side
● Basic units with time-delayed safety-related outputs
5.2.2

Applications

● EMERGENCY OFF / EMERGENCY STOP monitoring.
● Monitoring of protective doors with electromechanical position switches, solid-state
position switches, or solenoid switches.
● Monitoring of contact-free protection equipment, e.g. light arrays/light barriers, or laser
scanners.
The 3SK1 safety relays Advanced can be used in EMERGENCY OFF and EMERGENCY
STOP devices in accordance with EN 60204-1 and in safety circuits in accordance with VDE
0113-1 and/or EN 60204-1, e.g. in circuits in which controlled shutdown, STOP Category 1,
is necessary. Depending on the external circuit, it is possible to achieve SILCL 3 in
accordance with IEC 62061, SIL 3 in accordance with IEC 61508 and PL e (Cat. 4) in
accordance with ISO 13849-1.
The safety relays comply with DIN EN 50156-1:2004 (Electrical equipment for furnaces).
You can use the 3SK1 safety relays Advanced to achieve two-hand switching applications
up to type IIIc in compliance with EN 574:1996+A1:2008.
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SIRIUS 3SK1 safety relays
Manual, 06/2018, A5E02526190021A/RS-AD/004