- 3U horizontal rack mount
- 125–250 Vdc and 110–240 Vac power supply
- Three-phase voltage input with common neutral (58–144 V L-N)
- 2 three-phase sets of current inputs (5 A or 1 A nominal)
- 2 three-phase sets of trip-rated Form A outputs
- 3 fiber-based protection ports with user-configurable SEL MB8 or IEEE C37.94 encoding
- USB and Ethernet ports* for engineering access and SCADA/HMI
*Relay is shipped with an 850 nm 1000BASE-SX multimode SFP transceiver installed in Port 5. Additional SFP transceivers may be ordered separately.