SSSR Safety
Relay Interface
Part #SSSR
Allows customer selectable Manual or Auto Reset. Fits in a smaller space than two
52-278 Safety Relays.
Basic device for Emergency-Stop and
Safety Gate Applications
• Basic device to EN 60204-1:2005 and EN ISO 13849:2007 for single
or dual E-stop monitoring. • PL e /
category 4 in accordance with EN ISO 13849-1:2007 (previously EN 954:1997 category
4) • SILCL 3 in accordance with EN
62061:2005 • Stop category 0 acc. EN
60204-1 • Manual or automatic
start • Cross
monitoring • Feedback loop to monitoring
external contactors • 2 Enabling paths, 1
signalling path • Processing of signals
from output switching devices (OSSD) of light curtains acc. EN 61496-1. • To connect to load side of safety mats acc. EN
1760-1 • Debouncing of
inputs
Description of Device and
Function
SSSR -
This device is a two-channel safety switching
device for emergency stop applications with self-monitoring on each ON-OFF cycle. It conforms to EN 60204-1 and is equipped with
positively driven relays.
Basic
function: After supply voltage has been connected to terminals A1/A2
and the safety inputs closed,
operating the reset button closes the enabling current paths (manual start). When the safety
inputs are opened/de-excited the enabling current paths will
open.
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