Expander Modules

Output expander module relays are connected to base unit safety relay to provide additional outputs. It provides an easy option for more instantaneous or delayed outputs to the base unit without changing the base unit safety relay.

Treotham offers a range of Wieland and Pilz Safety relay expander modules. All safety relay expander modules are suitable for Safety Category 4/Pl e as per EN ISO 13849, dependant on the compliance of base unit safety relay.