Sealevel SeaRAQ 8x Isolated Form A Relay Outputs Expansion Module

SeaRAQ I/O expansion modules provide unprecedented expansion capabilities for Sealevel Relio R3 and Relio R4 industrial computers. The SeaRAQ 8521 expansion board adds 8x isolated relay outputs rated for 5V to 250V AC and 5V to 30V DC. The Form A relays each have a discrete common and support a maximum 4A current load. The SPST relays are normally open and close when energised.

To protect the host computer from harmful voltage spikes commonly found in industrial environments, the 8521 provides 1500V AC isolation. For easy, reliable field wiring, the board uses removable, high-retention terminal block connectors.

Sealevel's SeaMAX software drivers and utilities make installation and operation easy using Microsoft Windows and Linux operating systems. Communicate using industry standard Modbus RTU protocol or use the Sealevel SeaMAX API software libraries from your application program.

For more information about the 8521-ROHS please contact our technical sales team on +44 (0)1782 337 800, or alternatively submit an enquiry.

Features

• Digital expansion module with 8x Form A relay outputs, rated for 5V to 250V AC and 5V to 30V DC loads
• Each relay has a discrete common and supports a maximum current load of 4A
• 1500V AC field-to-logic isolation
• Industry standard Modbus RTU interface
• Input power provided via backplane connector
• Field wiring is simplified via removable 3.5mm terminal blocks compatible with 16-30 AWG wire
• Includes 20-position, removable, high-retention Phoenix terminal blocks
• Sealevel SeaMAX software supports Microsoft Windows and Linux operating systems