NORSTAT Safety Light Curtains,Safety Controllers - Manual (Page 21)

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SAFETY INTERFACES
SAFETY INTERFACES AND RELAYS
AD SRT
Safety relays for two-hand control.
With 2 NO + 1 NC guided-contact safety relays.
EDM Feedback input for external contactors monitoring.
The AD SRT can be used up to Cat. 4, PL e.
It is certified as Type III C according to the EN 574 standard and monitors the
simultaneity between the two inputs (< 0.5 sec).
AD SRE4, AD SRE4C
Safety relays for monitoring emergency stop buttons, safety switches.
With 3 NO + 1 NC guided-contact safety relays.
▪The Start/Restart can be either Automatic/Manual with the AD SRE4 or Manual
Monitored with the AD SRE4C.
▪EDM Feedback input for external contactors monitoring.
Both models can be used up to safety category 4, PL e according
to EN ISO 13849-1
AD SRE3, AD SRE3C
Safety relays for monitoring emergency stop buttons, safety switches.
With 2 NO + 1 NC guided-contact safety relays.
▪The Start/Restart can be either Automatic/Manual with the AD SRE3 or Manual
Monitored with the AD SRE3C.
▪EDM Feedback input for external contactors monitoring.
Both models can be used up to safety category 3, PL d according
to EN ISO 13849-1.
Safety level:
CAT. 4
PL e – Cat. 4 – Type III C (EN 574)
E S P E
Safety level:
CAT. 4
PL e – Cat. 4
E S P E
E S P E
Safety level:
CAT. 3
PL d – Cat. 3
NORSTAT INC. 300 Roundhill Dr. Rockaway, NJ 07866 Tel: 973-586-2500 Fax: 973-586-1590 www.norstat.com