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The SeaI/O-520N-OEM is an RS-485 Modbus RTU expansion module that adds 8 optically isolated inputs and 8 high-current Form C relay outputs to your SeaI/O network..
The SeaI/O-520N-OEM provides an efficient solution for adding optically isolated inputs and high-current relay outputs to RS-485 networks. Ideal for industrial environments, this module can control high-current devices using Form C relays and receive data from isolated signal sources with high protection. It easily integrates with Ethernet, USB, RS-485, or RS-232 base units for flexible network expansion.
Optically Isolated Inputs – 8 optically isolated inputs to protect equipment from voltage transients and ground loops.
Form C Relays – 8 high-current Form C relays that can switch up to 6A at 250VAC or 5A at 30VDC.
RS-485 Interface – Easily integrates with RS-485 Modbus RTU protocol, with connections via RJ45 or removable screw terminals.
Expansion Kit – Ships with metal standoffs for stacking and an optional interconnect cable for cascading RS-485 signals across multiple modules.
Flexibility in Setup – Allows easy cabling with standard CAT5 cabling or included connectors.
| Parameter | Details |
|---|---|
| Model Number | SeaI/O-520N-OEM |
| Host Interface | RS-485 |
| Power Requirement | 9-30 VDC @ 3.5W |
| Operating Temperature | 0°C to 70°C (32°F to 158°F) |
| Storage Temperature | -50°C to 105°C (-58°F to 221°F) |
| Dimensions | 7.5 (L) x 5.0 (W) x 0.8 (H) |
| Humidity Range | 10-90% Relative Humidity/Non-Condensing |
| Number of Inputs | 8 |
| Input Type | Optically Isolated Inputs |
| Number of Outputs | 8 |
| Output Type | Form C Relays |
| Mounting | Board only |