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The SeaI/O-440M-OEM is a compact RS-485 Modbus RTU-compatible I/O module featuring 32 SPST Form A dry contact Reed relays. It offers reliable switching up to 60VDC @ 500mA, ideal for industrial automation and control applications..
The SeaI/O-440M-OEM provides robust digital output capabilities with 32 Reed relay channels. It enables reliable switching performance and seamless integration with any RS-485 Modbus RTU network. The relays are capable of handling up to 60VDC at 500mA, making it suitable for applications such as signal routing, alarm triggering, and industrial relay control.
Powered via 9-30 VDC, this OEM board is ideal for embedded control systems and offers extended expansion options with SeaI/O N-series modules, supporting up to 246 additional I/O boards. Developers can interface using Modbus RTU or leverage Sealevel’s SeaMAX software libraries and utilities for a streamlined integration in both Windows and Linux environments.
32 dry contact Reed relay outputs (SPST Form A)
Fast response time and long relay life
Supports Modbus RTU protocol
RS-485 communication interface
Wide 9–30 VDC power input range
SeaMAX API and Windows/Linux support
Expandable with SeaI/O N-series modules
Compact OEM board-only form factor
Interface: RS-485
Number of Outputs: 32
Relay Type: SPST Form A Reed Relays
Power Input: 9–30 VDC @ 2.5W
Operating Temp: 0°C to 70°C (32°F to 158°F)
Storage Temp: -50°C to 105°C (-58°F to 221°F)
Humidity: 10–90% RH, non-condensing
Dimensions: 7.5" (L) x 5.0" (W) x 0.8" (H)
Inputs: None
Mounting: OEM board only (no enclosure)
Supported OS: Windows & Linux