Description:

The PowerShield PSAS400 Relay card provides VFC- Volt Free Contact dry relays that change state upon UPS events.
This type of card is often used when current loop communications are required for devices such as, BMS- Building Management Systems, Access Control alarm panels or industrial PLCs.
The events that can be detected are, Mains Failure & Restore, Battery Normal or Battery Low and UPS Summary Alarm.