SeaRAQ 8 Isolated Form A Relay Outputs

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

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Product Details

SeaRAQ™ I/O expansion modules provide unprecedented expansion capabilities for Sealevel Relio R3 and Relio R4 industrial computers. The SeaRAQ 8521 expansion board adds 8 isolated relay outputs rated for 5-250 VAC and 5-30 VDC. 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 energized.

To protect the host computer from harmful voltage spikes commonly found in industrial environments, the 8521 provides 1500 VAC 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.

Get a jump start on your digital I/O development with The Digital I/O Handbook that will provide helpful information that you will use again and again. Check out Chapter 1 for an overview of logic principles.