The Asco 300 Relay Expansion Module 18RX provides for some commonly used accessory relays.
- One form C contact for source availability of normal (18G).
- One contact for source availability of emergency (18B).
- Additional configurable output relay is provided with the default set to indicate a common alarm.
Please Note: This option will be factory installed if ordered with an Asco 300 transfer switch. If ordered separately, it will come as a field conversion kit for customer installation.