Security Relays

SR4C

Safety Relay SR4C

Features

4 positive travel relay contacts. Possible variants:

3 time delayed and 1 delayed contact
2 time delayed and 2 time delayed contacts
1 non-timed delayed and 3 timed delayed communication
Continuously adjustable time delay (1 to 30s).
Connection: Emergency stop buttons, Safety switches, Non-contact safety switches, OSSD Outputs
1- or 2-channel activation possible
Feedback loop or expansion modules to monitor downstream contactors
Cyclical monitoring of output contacts
Switching status indication via LED
2 start behavior possible: manual start monitored, automatic start
Short circuit and earth fault monitoring
PL e'ye, SILCL 3, up to category 4

SR4C
Safety function	Emergency stop monitoring, safety guard monitoring, light grids monitoring, stop category 0/1
Certified according to	EN 60204-1; EN ISO 13849-1 ; EN 62061
Approvals	CE, TUV, UL (for fixed screw terminals)
Supply voltage	AC/DC 24 V
Number of safe relay contacts	4
Max. switching capability of safe relay contacts	8 A / 250 VAC resistive load
Number of auxiliary relay contacts	-
Number of non time-delayed contacts	1 / 2 / 3
Number of time-delayed contacts	3 / 2 / 1
Adjustable time delay	1 - 30 s
Starting behavior	Automatic start or manual, monitored start
PL; Cat.; SILCL (EN ISO 13849-1; EN 62061)	PL e; Cat. 4; SILCL 3 - non-delayed contacts PL e; Cat. 3; SILCL 2 - delayed contacts
Width	22.5 mm
Order No. fixed screw terminals	472232 (3 del.) / 472222 (2 del.) / 472212 (1 del.)
Order No. plug-in screw terminals (no UL)	474232 (3 del.) / 474222 (2 del.) / 474212 (1 del.)
Order No. plug-in dual tensile spring terminals (no UL)	475232 (3 del.) / 475222 (2 del.) / 475212 (1 del.)
Order No. EKLS4; set of plug-in screw terminals	472592
Order No. EKLT4; set of plug-in dual tensile spring terminals	472595