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SR3A is a safety switching device specially designed for sensors with antivalent logic (normally open / normally closed combination).

In case of danger, the moving parts of a machine or system can be quickly and safely shut down via three safe relay contacts.

Product Page: SR3A - Safety Relay

Eigenschaft Wert
SR3A
Safety function Monitoring of sensors with antivalent logic
Certified according to EN 60204-1; DIN EN ISO 13849-1; EN 62061; IEC 61508 Teil 1-2 und 4-7; IEC 61511-1
Approvals CE, TUV
Supply voltage AC/DC 24 V / AC 115 V / AC 230 V
Number of safe relay contacts 3
Max. switching capability of safe relay contacts 8 A / 250 VAC resistive load
Number of auxiliary relay contacts 1 relay
Number of non time-delayed contacts 3
Number of time-delayed contacts -
Starting behavior Automatic start or manual,
monitored start
PL; Cat.; SILCL (EN ISO 13849-1; EN 62061) PL e; Cat. 4; SILCL 3
Width 22.5 mm
Order No. fixed screw terminals 472263 (24 V) / 472261 (115 V) / 472260 (230 V)
Order No. plug-in screw terminals 474263 (24 V) / 474261 (115 V) / 474260 (230 V)
Order No. push-in twin spring connector 475263 (24 V) / 475261 (115 V) / 475260 (230 V)
Accessories
Order No. EKLS4; set of plug-in screw terminals 472592
Order No. EKLT4; set of push-in twin spring connector 472595
Order No. Spacer for a defined minimum distance between two safety relays (see derating) 472596

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