Recommended Safety Relays - Siemens SINAMICS Series Operating Instructions Manual

Functional safety

13.10 Recommended safety relays

13.10 Recommended safety relays
Number Devices
1 EMERGENCY STOP
button
1 Power supply for 3SK1
1 Safety relay
Basic device advanced
2 Coupling relay for SIL3
1 Safety relay
Basic device advanced
728
Manufacturer, Details
order number
Siemens EMERGENCY STOP mushroom pushbutton, positive
3SB3000-1HA20 latching, rotate to release
Siemens Contact block with 2 contacts, 2NO, spring-loaded
3SB3403-0D connection, for front panel mounting
Siemens Protective collar for EMERGENCY STOP mushroom
3SB3921-0AX pushbutton, with block, yellow
Siemens Power supply for 3SK1
3SK1230-2AW20 (https://mall.industry.siemens.com/mall/en/Catalog/Product/3
SK1230-2AW20)
SIRIUS safety relay - power supply for 3SK1 advanced series
Us = 115 - 230 V AC/DC spring-loaded connection
Siemens Safety relay basic unit Advanced (for SS1)
3SK1121-2CB41 (https://mall.industry.siemens.com/mall/en/Catalog/Product/3
3SK1121-2CB42 SK1121-2CB42)
3SK1121-2CB44 SIRIUS safety relay, basic device advanced, with time delay
0.5-30 s,
4 relay enable circuits (2 NO contacts without delay, 2 NO
contacts, with delay)
Us = 24 V DC, spring-loaded connection
Phoenix Contact Coupling relay for SIL3
PSR-SPP-24DC/FS (https://www.phoenixcontact.com/en/produkte/2981981)
P/1X1/1X2 Coupling relay for SIL 3 high and low demand applications,
- 2981981 coupled with digital output signals to the I/O, 1 enable current
path, 1 feedback signal current path, 1 digital signaling
output, safe-state-off applications, test pulse filter,
PSR-TBUS connection, pluggable spring-loaded terminal
Siemens Safety relay basic unit Advanced (for STO)
3SK1121-2AB40 (https://mall.industry.siemens.com/mall/en/Catalog/Product/3
SK1121-2AB40)
SIRIUS safety relay basic device advanced range,
relay enable circuits, 3 NO contact + relay signaling circuit,
1 NC contact Us = 24 V DC, spring-loaded connection
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A